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Important!

This page is a work in progess, and will be updated. Please login and click the "Watch" button in the upper right to be notified of updates.

Training General 

  1. Get to your equipment training 5 minutes early. Staff do not want to wait on you to gown up / get notebook / find the right area / etc.
  2. If you cannot attend a training at the last minute, email the staff member. That is better than not doing anything.
  3. Generally speaking, all equipment training occurs at the machine. If in doubt, ask the staff member when you sign up for training.  
  4. Ask staff for any and all help. We are here to help you.
  5. Come down to the staff office and introduce yourself.  It is nice to make a relationship with you, and that will excel you in your research.
  6. If applicable, take notes when you are being trained. However, some time staff may prefer you focus your efforts on paying attention, and referring to the SOP after for any additional questions.
  7. Be prepared for your equipment training.  Know what you want the machine to do, or achieve.
  8. Request training so that you'll be trained close to when you actually need to use the machine. Getting trained on a machine more than a few weeks before you'll actually use it will leave you unfamiliar with the tool.

Laboratory Orientation

  1. Laboratory Spills
    1. All spills in the laboratory must be reported to a Laboratory Staff member immediately to remediate the spill as quickly as possible
    2. This includes spills of biological materials
  2. Bodily Fluid Spills
    1. Do not try to clean up bodily fluid spills. Follow the Purdue University Blood-bourne Pathogens procedures
    2. In the event of a Medical Emergency
      1. Call 911 or use the Emergency Call Box to report the incident.
      2. Don't move the victim unless safety dictates
  3. Building Emergency Plan: Current version may be found here: https://www.purdue.edu/discoverypark/birck/files/BNC%20Building%20Emergency%20Plan_2-6-18.pdf
  4. Lab access
    1. Training is required for unescorted access to the labs.
    2. Visitors are allowed: Lab visitors must be accompanied at all times by a certified lab user.
    3. Visitors may not handle Hazardous Materials or Equipment.
  5. Lab attire
    1. All personnel entering the Birck Laboratories are required to wear:
      1. Fully enclosed shoes
      2. Full leg covering - long pants and skirts
      3. Safety glasses (in labs marked as required)
      4. Working with chemicals and in fume hoods requires additional PPE
  6. Fume hoods: 
    1. There are two types of fume hoods in the general laborities, acid and solvent.
    2. Acid hood rules:
      1. Solvents may not be used in an acid hood
      2. Drain is for rinse water, acids, and bases only.
      3. No solvents may be put down the drain or placed anywhere within the hood.
      4. The sash must be:
        1. (Single horizontal sash) left in down position
        2. (Two vertical sashes) One window must be open at all times
      5. PPE required when pouring chemicals:
        1. Chemical goggles and face shield
        2. Chemical-resistant coat-apron
        3. Chemical gloves
      6. PPE required when using the hood:
        1. Chemical goggles
        2. Chemical-resistant coat-apron
        3. Chemical gloves
    3. Solvent hood rules:
      1. Acids must not be used in a solvent hood.
      2. Drain (if present) is for rinse water only
      3. No solvents may be put down the drain
      4. Solvent waste must be placed in a labeled solvent waste container for pickup by REM
      5. The sash must be:
        1. (Single horizontal sash) left in down position
        2. (Two vertical sashes) One window must be open at all times
      6. PPE required when pouring solvents:
        1. Chemical goggles
        2. Chemical-resistant coat-apron
        3. Chemical gloves
      7. PPE required when using solvent hood:
        1. Chemical goggles
        2. Chemical-resistant coat-apron
        3. Chemical gloves
  7. Ordering and Lab supplies:
    1. All chemical orders must have an up to date SDS attached to the order for approval by Steve Jurss (BNC Safety Officer)
    2. All orders must be made using Ariba.
    3. Lab supplies are delivered daily, give at least 24 hours.
      1. Request supplies through Lorraine Fox: foxl@purdue.edu
      2. CR stocked in AM, Labs stocked in PM
    4.  If you need to arrange training in Ariba, please contact the BNC Business Office or Secretarial Staff. If there is neough interest in this training, they can arrange to have a class given on site.
    5. If you have questions regarding the pre-approved chemical list, please contact Steve Jurss. If you have questions related to the ordering process, please contact the BNC Business Office or Secretarial Staff.
  8. Gas Cylinders
      1. Gas cylinders must be changed by designated, trained staff personnel.
      2. DO NOT attempt to change a gas cylinder.
        1. Contact Staff before weekend run to verify gas level.
      3. No hazardous process gas will be placed in a laboratory
  9. Gloves
    1. Gloves are for your protection and the protection of the equipment or process
    2. Gloves may not be used to:
      1. Open doors
      2. Answer phones
  10. Special Hazards
    1. Laser Laboratories

      1. The foremost concern is the danger to one’s eyes and exposed skin. The user must be trained and certified on working the laser and wear the appropriate eyewear protection.

      2. Contact REM for laser safety training
    2. Biological Laboratories
      1. For biological hazards, special training is necessary.
      2. Contact REM for biological safety training.
    3. X-Ray sources
      1. Contact REM for X-ray safety training.
  11. Policies
    1. No food or drinks in labs, galley, or subfab.
    2. No smoking anywhere in building
    3. Appropriate PPE requirements are in effect at all times.
  12. Citizenship Violations - Equipment

    1. The Birck disciplinary committee is comprised of two faculty members, a staff scientist, a student representative, and the engineering manager. 

    2. Policy and safety violations are first discussed between the engineering manager and the violator(s), after which the level of discipline is recommended to the committee, who determines the final disposition of the issue. 

    3. The committee can decide penalties from restricted access to suspension, depending on severity.

  13. Citizenship Violations - Safety and Housekeeping

    1. All users are responsible for cleaning up after themselves and for leaving their work areas ready for use by others.

    2. If any user is observed leaving a mess in a hood or near equipment, or leaving an unattended tote not in its proper storage location, they will be subjected to mandatory participation in 4 hours of weekly staff support duties, or a one-week suspension of all cleanroom privileges. This means denied access to the cleanroom for one week.

Right-to-Know Topics

  1. The purpose of Right-to-Know is to:
    1. Provide employees with knowledge to understand the hazards of the chemicals they work with
    2. Provide a safer and healthier workplace for all employees
    3. Ensure regulatory compliance with the State and Federal Right-To-Know Law, 29 CFR 1910.1200
  2. Who is covered under the RTK or Hazard Communication Program (HCP or HazCom)?
    1. Support Service Employees:
      1. Physical Facilities
      2. Transportation
      3. Printing Services
      4. Airport Operations
      5. Intercollegiate Athletics
      6. Housing and Food Services
      7. Clerical
    2. Academic Employees:
      1. Support Services (i.e. departmental shops)
      2. Laboratory with non-laboratory use of chemicals
    3. An employee is:
      1. anyone who receives a paycheck from Purdue University
      2. Full-time, Part-time, Temporary, or Student
  3. Responsibilities
    1. Radiological & Environmental Management (REM)
      1. Train DTIs
      2. Conduct work area audits
      3. Assist with MSDS acquisitions
      4. Program oversight
    2. Designated Training Instructors (DTI)
      1. Coordinate work area HAZCOM program including but not limited to:
        1. Chemical inventories & employee exposure records
        2. Maintain SDSs for work area
        3. Ensure ALL containers are labeled
        4. Conduct employee training
        5. Maintain safe and healthful work conditions
        6. Contact REM with questions
  4. Employee Rights
    1. To be informed about the known health and physical hazards in your work area
    2. To be trained to use proper safety techniques and hygeine practices
    3. To inform your DTI about accidents or tazardous situations in your work area without fear of repurcussions from your supervisor or the UniversityTo file a formal conplaint with IOSHA
      1. Indiana Department of Labor, Indiana State Government Center South, Indianapolis, IN 46204-2287. 317-232-2655
  5. Employee Responsibilities
    1. To use the available information and to stay informed about the hazards in your work area
    2. To use the safety techniques and hygeine practices as a routine part of your daily activities
    3. To attend the training sessions conducted by your DTI
  6. Job specific information
    1. Hazardous chemicals used in this work area:
      1. Are listed on the chemical inventory
      2. training may be done product by product or by chemical class
        1. Chemical classes include but are not limited to:
          1. Acid
          2. Base
          3. Solvent
      3. Solvents
        1. Defatting of the skin
        2. Eczema, sever dry and cracking skin
        3. Examples: Acetone, Methanol, Toluene, Chlorobenzene.
      4. Acids, pH > 7
        1. burns and blisters the skin
        2. lung irritation if inhaled
        3. flush skin with tepid water for 15-20 minutes
        4. Examples: Sulfuric, Nitric, Hydrochloric, Hydrofluoric, Acetic
      5. Bases, pH < 7
        1. burns skin, damage area can penetrate to the bone if not neutralized
        2. eye damage
        3. seem medical attention
        4. Examples: Sodium Hydroxide, Tetramethylammonium Hydroxide
      6. Others
        1. Cryogens
        2. Pyrophorics
        3. Latex
    2. Physical hazards of Products in the Work Area, with examples
      1. Flammables: Acetone, Hydrogen, Silane
      2. Corrosive: Hydrofluoric Acid, Buffered Oxide Etch (BOE), Nitric, Sulfuric, Hydrochloric, etc., acids.
      3. Reactive: Acetic acid
      4. Explosive: 
      5. Cryogens: Liquid Nitrogen
  7. GHS - Global Harmonization system
    1. What an SDS contains:
      1. Product Name
      2. Health Hazards
      3. Flammability
      4. Hazard Ratings
      5. What to do in an emergency
      6. What is the odor and appearance
      7. Other information appropriate for the work area
      8. Exposure control and Personal Protective Equipment
    2. Labels
      1. Incoming containers must be labeled by manufacturer or distributor
        1. Required minimum information
          1. Product name
          2. Manufacturer/distributor
          3. Address
          4. Hazard information
      2. Labels must be intact and attached to the container
      3. Prominently displayed on the container and at least written in English
      4. Never remove or deface labels unless container is empty
      5. Inspect containers on a regular basis to ensure labels are secure and still legible
        1. If label is partially coming off, reattach with adhesive or clear packing tape
        2. If label is becoming illegible, use an approved University secondary container label to re-label the container
      6. If you transfer a chemical to a new container, it must be labeled with the required minimum information:
        1. Full chemical name
        2. Date
        3. Your name
      7. NFPA Hazard Rating System
        1. diamond divided into 4 smaller diamonts
        2. start at the left diamond move clockwise to read the hazard information
        3. may or may not be color coded
        4. Information will always be in the same location
          1. Left: Health
          2. Top: Fire
          3. Right: Reactivity
          4. Bottom: Special Hazard
        5. Numbers will be 0-4
          1. 0 = Minimal Hazard
          2. 4 = Severe hazard
          3. refer to pages 41-43 of the written compliance manual for complete definitions
        6. Special hazard information includes oxidizer, corrosive, acid, base, etc.
    3. Notable Changes from the GHS
      1. NFPA will become less used with move to GHS
        1. Some old ramiliar labels and numbering systems will become less used
        2. Some new classifications, new numbering systems and new "label elements" and labels will become what we teach and learn.
      2. MDSDs will be called SDSs
      3. Section 2 will provide
        1. Classifications
        2. Label elements
          1. Pictograms
          2. Signal word
          3. Precautionary statement
          4. Hazard statement
  8. Control Methods
    1. Ways to reduce exposure to chemical products
      1. Personal protective equipment
        1. Gloves
        2. Goggles
        3. Respirators
        4. Other
      2. Engineering controls
        1. local exhaust ventilation
        2. remove handling of materials
      3. Administrative controls
        1. Limit work time
        2. Rotate work groups
        3. Break areas separate from work areas
        4. No smoking, eating, drinking, or applying cosmetics in work area
  9. Types of effects
    1. Local: Involves one site in the body, usually the point of contact
      1. Skin irritation or burns
      2. Eye irritation or burns
      3. Upper respiratory tract infection
    2. Systemic: Involves more than one part of the body, not just the point of contact
      1. Central nervous system: headaches, diziness nausea, etc.
      2. Organ damage: Liver lungs, etc.
      3. Cancer
  10. Summary
    1. The written compliance manual, SDSs, and chemical inventory are located at: Cleanroom entrance, Subfab, and each lab galley
    2. All containers must be labeled
    3. Secondary labels available from DTI
    4. The DTIs for your work area are: Steve Jurss, Tim (Kwok or Miller?), Dave Lubelski, Ron Reger.
    5. Ask questions if you're not sure!

Fume Hood Training

  1. General Glove use
    1. General use - Nitrile (Blue-Microflex)
      1. Single glove (on the non-dominant hand) use for control of contamination to samples/devices outside the lab
      2. Biological Safety Level 1 (Use of Gray gloves)
        1. Not to be work outside the lab
      3. Biological Safety Level 2 (Use of Black gloves)
        1. Not to be work outside the lab
  2. Fume Hoods
    1. All fume hoods are labeled as "Acid" (Acid/Base/Aqueous) or "Solvent" hoods
    2. See requirements in laboratory Orientation, section 6.
    3. The separation of hood types is for chemical compatibility
    4. Users should ensure they are following all Personal Protective Equipment requirements for the hood type being used.
  3. Hood PPE requirements
    1. Acid Hoods (inorganic chemistry) 
      1. PPE requirements: Nitrile gloves, orange acid gloves, chemical smock, safety goggles, and face shield
    2. Solvent Hoods (organic chemistry)
      1. PPE requirements: Nitrile gloves, solvent gloves, lab coat, safety goggles
  4. Waste Disposal
    1. Acid Hoods
      1. BNC has an active acid/base neutralization system. This allows the disposal of acids and bases down the hood drain. Please make sure materials are poured slowly and with a lot of water for dilution.
      2. High heavy metal containing wastes (ex. spent plating baths) need to be containerized and sent as hazardous waste.
    2. Solvent Hoods
      1. Only water is to be disposed of down a solvent hood drain
      2. Solvent waste is placed in one of two containers, depending on whether a chemical in the solution contains a halogen (Fluorine, Chlorine, Bromine, Iodine)
        1. Non-halogenated in one container.
        2. Halogenated in the other
      3. Replace container cap immediately upon completion of adding waste to containers
  5. Empty container disposal
    1. Container should be triple rinsed and semi-dried using a nitrogen gun.
    2. Cap has been rinsed, dried, and thrown in trash can.
    3. Disposal label has been applied.
  6. Particular Hazards:
    1. HF and BOE
      1. Hydrofluoric Acid and Buffered Oxide Etch: Potentially highly corrosive and highly systemically toxic
      2. Treatment - Decontamination followed by application of 0.13% Benzylkonium Chloride; Additional treatment via 2.5% Calcium Gluconate gel.
      3. If skin contamination occurs, surface pain will occur.
        1. Unlike other acids, once rinsed, deep tissue pain will folow.
      4. Treat as soon as possible with 0.13% Benzalkonium Chloride - follow procedure from HF first Aid kit. Then dial 911.
    2. TMAH
      1. Tetramethylammonium hydroxide (TMAH) is potentially highly corrosive and highly systemically toxic, especially at 25% concentrations.
      2. 2.4% TMAH is the basis for metal ion free photoresist developers: MF CD-26(A), MF-319, AZ 326/726/826, etc.
      3. The tetramethylammonium ion (TMA+) is neurotoxic. The strongly basic/caustic solution liquifies skin and allows the TMA ion to be rapidly absorbed through the skin.
      4. In case of skin contact: Take off contaminated clothing and shoes immediately. Wash off with plenty of water. Take victim immediately to hospital. Consult a physician.
      5. In case of eye contact: Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. Continue rinsing eyes during transport to hospital.
  7. Spill carts and emergency procedures
    1. Spill carts are located in galleys, designed for spills less than 1 gallon.
    2. For spills greater than 1 gallon, need staff assistance. Dial 63333 from a campus phone, or 765-496-3333 on a cell phone.
  8. SDSs are located in yellow binders, one in each galley, at the entrance to the subfab, and the cleanroom gowning room.
  9. Getting chemicals into Birck
    1. If you major professor is here: Attach an electronic copy of the SDSs to the SAP order
    2. Not at Birck - email Steve Jurss a copy of the SDS for approval before ordering the material.
    3. Chemicals on campus - must be shipped via campus mail.
      1. Need the following
        1. Shipped from mailroom
          1. Need SDS in the box
          2. On the exterior
            1. Name
            2. E-mail address
            3. Phone number
            4. Laboratory room number to be placed.
    4. DO NOT STORE CHEMICALS IN GRAD OFFICES.
  10. Fume hood operation
    1. If a horizontal sash, 1 to 1.5 open at all times
    2. Utilities: Vacuum, nitrogen, tap water (General labs only), and UPW.
  11. Emergency contact information
    1. Personal injury, fire/explosion - Dial 911
    2. Staff assistance
      1. From a university phone: Dial 63333
      2. From a non-university phone: Dial 765-496-3333.
  12. Door posting - hazard assessment and staff contact info
    1. Each lab is required to have a hazard assessment which identifies hazards and required PPE.
    2. This posting also includes Emergency Numbers and staff contact information.

Cleanroom Training

  1. The Scifres Nanofabrication Laboratory

    1. The cleanroom of the Birck Nanotechnology Center is an amazing research laboratory. Conforming to ISO Class 3, 4, and 5 standards, particles within the cleanroom are minimized.

    2. The cleanroom is 25,252 square feet of space. To keep the level of particle contamination low, we need your help. You can minimize the generation of particles within the cleanroom by understanding and following the procedures and protocols outlined during this training.

    3. In order to minimize particle contamination (and increase research quality) within the cleanroom, access is limited to those whose work requires entry. Each user is required to swipe their own Birck badge for access into the cleanroom. Piggy backing on another users card is not allowed. Visitors may welcome to view the operation from the cleanroom tour aisle around the perimeter. Visitor entry is only permitted in special circumstances, and required pre-approval from the Engineering Manager and escort by a BNC staff member.

  2. Cleanroom training

    1. Prior to the actual face-to-face training session, there are a number of prerequisites you must perform. Sean Rinehart is the Birck Staff member administering the BNC206 Cleanroom Training, and needs to ensure you have performed the following prerequisites. Thus, please send the following pieces of information to srinehar@purdue.edu:

      1. The name of your major professor
      2. Your Purdue login
      3. The date you recieved BNC 105, 150, and passed the 206 online quiz with an 80% passing score.
    2. After sending this information to Sean Rinehart, you may then register for a BNC 206 Cleanroom Training session.
  3. Safety - Evacuating the cleanroom

    1. While working in the cleanroom, it may become necessary to evacuate the building. When an alarm sounds:

      1. Leave the cleanroom IMMEDIATELY using the nearest emergency exit.
        1. There is an emergency exit at the end of every bay in the cleanroom
      2. Alert others that there is an emergency, and help them evacuate if necessary.
      3. Proceed directly to the entrance of the Burton Morgan Center.
      4. Although you will be in your cleanroom gown, leave the cleanroom immediately. Do not take the time to take off your gown. Your safety is more important than the cleanroom gown. You may remove your gown once you are safely in the Burton Morgan Center.
      5. Once you are safely out of Birck and in the Burton Morgan Center, you may remove your gown. Lorraine Fox will collect all the used gowns and launder them. 
  4. Safety - Chemical Safety

    1. While using hazardous process materials, you must wear the following Personal Protective Equipment (PPE) in addition to your cleanroom garment system.  The PPE must be worn when you are working in the zone designated by the striped tape near the acid and solvent hoods.  Hoods will be designated with a sign posted inside with its designation (acid or solvent), and the PPE required to work in that hood.

    2. There are 20 shower/eyewash stations in the cleanroom.  When you are working in the cleanroom, you should take time to locate the nearest station.  In the event of a chemical exposure, proceed directly to the station and rinse for 15 minutes.

    3. If you have any questions please contact the staff before trying something new.
    4. There are two types of fume hoods in the cleanroom: acid hood (all plastic, has a drain) and solvent hood (stainless steel, usually no drain).
  5. Safety - Hood protocols
    1. Never use acids and solvents in the same fume hood
    2. Never dispose of solvents down the drains in the hood
    3. Never reach with your hands into chemical solutions
    4. Use good chemical hygeine practices
    5. Do not work within the first four inches of the hoods, this space is needed for proper airflow
    6. Acids are disposed of in acid drains
    7. Solvents are captured for disposal 
    8. Always add acid to solutions!
    9. Work diligently to minimize chemical use. Don't pour 1 L when 100 mL would be sufficient.
    10. Please clean your work area before leaving.
    11. Solvent soaked wipes - must be dried and disposed of before leaving the cleanroom
    12. Acid soaked wipes - Rinse with water, wring out, and throw away before leaving the cleanroom.
    13. Beakers may not be left in the hood, anything left in the hood will be disposed of.

    14. Chemical splash goggles are required for any chemical work in either acid or solvent hoods. Safety/impact goggles do not need to be work under these.

    15. When using any amount of HF acid (or BHF), a face shield is also required.

  6. Safety - Solvent hood PPE

    1. Proper PPE is required any time you are within the hood hazard zone (with the a yellow and red striped tape).

    2. You must use Ansell Latex Gloves on top of a pair of standard cleanroom gloves to work in a solvent hood. 

    3. Chemical/splash goggles are required. Impact/safety goggles do not need to be work under these. 

    4. Never pour solvents down the drain. Place them in labeled waste containers.

  7. Safety - Acid/Base Hood PPE

    1. Proper PPE is required any time you are within the hood hazard zone (with the a yellow and red striped tape).

    2. Chemical/splash goggles, apron/smock, orange chemical resistant gloves, face shield (when pouring from stock bottles or dealing with large quantities of acid).
  8. Safety - Special hazards
    1. Laser Laboratories

      1. The foremost concern is the danger to one’s eyes and exposed skin. The user must be trained and certified on working the laser and wear the appropriate eyewear protection.

      2. Contact Jerry Shepard jshepar@purdue.edu for instructions on how to obtain laser safety training

    2. Biology Laboratories

      1. For biological hazards, special training is necessary.

      2. Contact Guy Telesnicki gtelesni@purdue.edu for biological safety training.

    3. X-ray Sources

      1. Go to: http://www.purdue.edu/rem for training dates/times.

  9. Good cleanroom practices

    1. Working in a cleanroom requires patience and diligence. Users must take precautions to minimize contamination caused by their actions. The following are good practices while in the cleanroom:

      1. Move slowly in the cleanroom. 

      2. Do not restrict the laminar airflow. That is, do not place anything above your sample such as your head, hands, arms, etc. 

      3. Bathe and change your clothes daily. 

      4. Trim long fingernails to avoid puncturing gloves. 

      5. Wear non-linting street clothes of cotton or polyester blend fabrics. 

      6. As a general rule, once an object enters the cleanroom then it stays in the cleanroom. 

        1. The only exception is samples may be carried in and out in a clean container. 

      7. If you need to change your gloves, please return to the gowning room. 

      8. A buddy is required from 5pm to 8am while you are in the cleanroom regardless of your process. 

      9. Smokers should take a drink of water before entering the cleanroom.

  10. Bad cleanroom practices

    1. The following activities generate particles and other contaminants (hurting facility research), and are not allowed in the cleanroom:

      1. Do not run while in the cleanroom. Brisk walking is also not advisable. 

      2. Do not unzip your cleanroom suit while in the cleanroom. 

      3. Do not open the emergency exits unless during an evacuation. 

      4. Do not bring in non-cleanroom compatible materials (paper, pens, pencils, cardboard). 

      5. Food and drink are not allowed in the cleanroom. Chewing gum or sucking mints are not allowed. 

      6. Do not go under the raised floor of the cleanroom. 

      7. Do not prop up your feet on a chair, table, or other raised surface. Feet belong on the floor. 

      8. If you have a cold, it is advisable to not go in the cleanroom.

  11. Forbidden items
    1. The following materials and items may not be brought into the cleanroom:

      1. Laptop computers.

      2. Paper (other than cleanroom paper). 

      3. Research notebooks (other than issued cleanroom notebooks). 

      4. Cosmetics (make up, eye-liner, lipstick, mascara, cologne, perfume, etc). 

      5. Hairspray, hair gel, and other hair styling products. 

      6. Old glassware used in other facilities. 

      7. Totes, toolboxes, and ???. 

      8. Wedding rings and jewelry is allowed, but rings with prongs or sharp edges should be avoided.

    2. Note: Cell phones are allowed in the cleanroom, but must be carefully wiped down in the gowning room each and every time prior to entry into the cleanroom.

  12. Materials in the cleanroom

    1. Material entry into the cleanroom by a user is limited to samples. 

    2. All samples are to be taken into cleanroom through the gowning room. 

    3. Personal totes may not enter the cleanroom. 

    4. Notebooks must be cleanroom notebooks issued by the BNC Procurement Officer. Once a notebook is in the cleanroom, it must stay in the cleanroom or gowning room.  A copier is provided in the gowning room with cleanroom paper. 

  13. Common situations

    1. Taking printed material in: Bring printed material into the gowning room for copying onto cleanroom paper. Print the material from your office computer to the gowning room printer through the network.

    2. Taking printed materials out: Frequently, users will want to copy their notes from the process they have completed.  The preferred method is to scan the material to a pdf file on the copy/scanner in the gowning room.  The file can be saved on a USB flash drive and printed from your office computer. Cleanroom paper is expensive so please minimize its use. 
  14. Storage within the cleanroom:

    1. Upon request, cleanroom users will be assigned a cleanroom storage bin.

      New glassware must be purchased and delivered to BNC staff at least 48 hours before its intended use for cleaning.  Once cleaned it will be placed in the user's storage bin.  All glassware and process materials must fit within your storage container.  All items including tweezers must be given to staff for cleaning and placement in your storage container.

      ALL GLASSWARE MUST BE UNUSED WITH RECEIPT OF PURCHASE WHEN DELIVERED TO STAFF FOR CLEANING.
      This is to eliminate the possibility of chemical incompatibilities and injury to BNC staff from residual chemicals.
      Please note, the cleaning done by BNC staff is for particle contamination only. We are not cleaning for your process. Deliver your new glassware to BRK 1220 in a box marked with your name, your professor's name, and your storage bin number. The glassware will be cleaned by the BNC Staff and put in your cleanroom storage container. All sample containers put into the cleanroom basket must be wiped with 10% Isopropyl in 90% ultrapure water before being transferred to the cleanroom basket. Chemicals may only be brought into the cleanroom by BNC staff.  Please follow all chemical safety guidelines.

Cleanroom Usage General

  1. Cleanroom general 
    1. The purpose of the cleanroom is to maintain a controlled environment for sensitive research. This includes control of particles, temperature, and humidity.
    2. As a result, materials allowed into the cleanroom are heavily restricted based primarily on particle generation.
      1. For example, woven cleanroom wipes are used instead of normal paper. These cleanroom wipes are much lower in particles and do not tear.
      2. Activities which generate particles: Talking, cell phone use, quick movement, wafer cleaving

        1. No running / no fast walking - this disrupts air flow

    3. Remember: People are the most dangerous and the most dirty thing in the cleanroom. 
      1. To protect yourself, you need to be aware of proper policy, understand the SDSs of the chemicals you are using, and expect other users to do the same.
    4. Due to the extreme danger presented by common semiconductor processing chemicals (particularly HF/BOE and TMAH), chemical use in the cleanroom is heavily regulated. 
      1. All open liquids must be kept in a hood. No "benchtop" chemistry may be performed under any circumstances, even if the chemicals are not dangerous.
    5. The cleanroom is a shared use space, and a multi-user facility.
      1. You'll be expected to pay for broken equipment, if a result of gross negligence.
    6. If you're not in the cleanroom, be sure your tote is in its numbered slot
  2. Supplies
    1. Get from Lorraine Fox (BRK2251, Available 1-2 PM Monday to Friday)
    2. Get glassware and metal tweezers, label glassware with name and professor (and chemical ONLY if specialized)
    3. New glassware needs cleaned, it will come with grease and particles from the factory
  3. Acid Hood:  "AAA" - Always Add Acid (except in the case of Piranha)

Cleanroom Hood Safety

  1. Per REM's Chemical Hygeine plan, all chemicals in the hood must be labeled with:
    1. Researcher First and Last Name
    2. Chemical name (Written out) and Solution Composition (If applicable)
    3. Current Date
  2. Unlabeled chemicals/samples/glassware is considered both trash and a safety hazard, and may be disposed of.
  3. Do not block vents/airholes in the fume hood. This includes the vents at the front of the hood.
  4. Never put your head inside of an in-use hood
  5. Cell phones may not be used in the hood, or handled with chemical gloves
  6. Chemicals must be removed from the hood when finished
  7. Proper PPE
    1. Solvent hood: Chemical/splash goggles and latex gloves.
    2. Acid hood: Orange acid gloves, acid gown, and chemical/splash goggles. A face shield is required when pouring chemicals or using HF/BOE.
  8. ABSOLUTELY remember:
    1. ABSOLUTELY must use proper PPE when doing any wet chemistry
    2. ABSOLUTELY no heads in the fume hood.
      1. Contact engineering staff or Steve Jurss if you have a need and we will figure out a work around.
    3. ABSOLUTELY no concentrated acids or bases in the solvent hood.
      1. Only exception is commercially mixed dilute developers.
    4. ABSOLUTELY no cellphones in the hood or cellphone use with your solvent or acid gloves.
    5. ABSOLUTELY no use of used acid or solvent gloves outside of the hood.
      1. This means no touching of door knobs, equipment, keyboards, mice, microscopes, etc.
      2. A clean pair of latex/solvent gloves can be used for sample prep and under acid gloves if desired.
    6. ABSOLUTELY no wet chemistry done outside the hoods.
      1. If it can spill, it needs to be done in the hood, working 6" from the opening with vents clear.
      2. Exception is quick wipe with either IPA or Acetone, but only with spray onto wipes.
      3. Containers should not be transferred between hoods. If unavoidable, cover with aluminum foil to transport in IPA or water ONLY.
  9. If you see anyone violating these, either talk to them yourselves or talk to BNC Staff.
  10. Our goal is education not punishment, but gross negligence will result in the loss of lab/equipment access until you've been retrained.

Solvent Hood Use

  1. Solvent hood general
    1. Sign in when you get to a hood , and out when you leave
    2. Hood should be free of wipes and chemicals.
      1. Exception is properly labeled chemicals in back of hood, and a single small (<10) stack of dry, unused wipes on opposite side of hood from sink.
    3. Daily use bottles are for spraying only, don't trust them for soaks and sonication.
    4. For soaks/sonication, pour from below the supply cabinet.
      1. These are CLEAN.
    5. Daily use bottles shouldn't be removed from hood.
      1. If they don't appear to work, check under the lid. If it is genuinely cracked, dry it and get a new bottle from supply room, disposing of gloves and getting a new set.
    6. Finish a bottle completely, (can optionally sit on wipe), then blow dry, then place in bin and label with "cleaned" label.
      1. Solvent bottle get a triple air rinse, aqueous developer gets a triple water rinse.
      2. Cap gets dried and thrown in trash.
    7. Get new bottles from the supply cabinet
      1. Use a carrier, or two hands if bottle doesn’t fit securely in carrier.
    8. Place back under hood or back in supply cabinet when done
      1. Contamination issue and explosive hazard of not.
    9. Supply room.
      1. CR wipes, Pipettes, Pens, etc
    10. If you're not at the hood, chemicals need to be labeled and pushed to the back.
      1. Labeled on wipe (or pre-printed label) with:
        1. your name
        2. your research group
        3. the chemical
        4. the time you left the liquid
        5. your planned return time.
      2. If solvent, liquid needs to be covered with foil or an evaporating dish.
      3. Extended processes may be done for up to 72 hrs
      4. Email me if you need longer
      5. Unlabeled chemicals, samples, or glassware is considered both trash and a safety hazard, and will be disposed of.
    11. Halogenated vs nonhalogenated waste.
    12. Basic developers go down drain
    13. Prohibited chemicals in spinner area:
      1. Remover PG
      2. PRS2000
      3. HMDS.
    14. Cleanliness violations are on a 3 strikes system
      1. We DO understand mistakes and forgetfulness happen.
    15. When finished in hood:
      1. Clean up any chemicals on the hood surface
      2. Dispose of wipes
      3. Reset the daily use bottles.
      4. Store any chemical bottles under the hood or in the cabined.
      5. Sign out.

Acid Hood Usage

Proper Orientation for Acid Hood gloves:


Proper Orientation for Acid Gown:

  1. Acid hood general
    1. Sign in when you get to a hood , and out when you leave
    2. Hood should be free of wipes and chemicals.
      1. Exception is properly labeled chemicals in back of hood, and a single small (<10) stack of dry, unused wipes on opposite side of hood from sink.
    3. Finish a bottle completely, (can optionally sit on wipe), then triple rinse in DI H2O, then dry with a wipe/N2 gun, then place in bin and label with "cleaned" label.
      1. Cap gets dried and thrown in trash.
    4. Get new bottles from the supply cabinet using a chemical carrier
    5. Place back under hood or back in supply cabinet when done
      1. Contamination issue and explosive hazard if not.
    6. The supply room has extra CR wipes, Pipettes, Pens, etc if needed. Do not touch the door with acid gloves.
    7. If you're not at the hood, chemicals need to be labeled and pushed to the back.
      1. Labeled on wipe (or pre-printed label) with:
        1. your name
        2. your research group
        3. the chemical
        4. the time you left the liquid
        5. your planned return time.
      2. Extended processes may be done for up to 72 hrs
      3. Unlabeled chemicals, samples, or glassware is considered both trash and a safety hazard, and will be disposed of.
    8. Acid and base waste goes down the drain, with LOTS of DI water
      1. Let any heated solutions cool to about 40 C before pouring down the drain.
      2. Any solutions containing heavy metals need to be removed of separately.
    9. When finished in hood:
      1. Clean up any chemicals on the hood surface
      2. Dispose of wipes
      3. Reset the daily use bottles.
      4. Store any chemical bottles under the hood or in the cabinet.
      5. Sign out.

Current Procedures and Resources

General Safety Overview

Lab Courtesy

Laboratory Fume Hood Training Summary.doc

BNC Code of Conduct

Operating Policy and Procedures (2012)

REM Chemical Hygiene Plan

BNC 150 Slides

BNC 202 Slides

BNC 206 Slides

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