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Training General
- 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.
- If you cannot attend a training at the last minute, email the staff member. That is better than not doing anything.
- Generally speaking, all equipment trainings occur at the machine. If in doubt, ask the staff member when you sign up for training.
- Ask staff for any and all help. We are here to help you.
- 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.
- Take 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.
- Be prepared for your equipment training. Know what you want the machine to do, or achieve.
- 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.
Cleanroom Usage General
- Cleanroom general
- Example of airflow and particle rate
- Demo of cleanroom wipe and paper vs normal paper
- People are the most dangerous and the most dirty thing in there
- Particle generation: Talking, cell phone use, quick movement, wafer cleaving
No running / no fast walking - this disrupts air flow
- All open liquids must be kept in a hood
- You'll be expected to pay for broken equipment, if a result of gross negligence
- If you're not in the cleanroom, be sure your tote is in its numbered slot
- Supplies
- Get from Lorraine Fox (BRK2251, Available 1-2 PM Monday to Friday)
- Get glassware and metal tweezers, label glassware with name and professor (and chemical ONLY if specialized)
- New glassware needs cleaned, it will come with grease and particles from the factory
- Acid Hood: "AAA" - Always Add Acid (except in the case of Piranha)
Cleanroom Hood Safety
- Per REM's Chemical Hygeine plan, all chemicals in the hood must be labeled with:
- Researcher First and Last Name
- Chemical name (Written out) and Solution Composition (If applicable)
- Current Date
- Unlabeled chemicals/samples/glassware is considered both trash and a safety hazard, and may be disposed of.
- Do not block vents/airholes in the fume hood. This includes the vents at the front of the hood.
- Never put your head inside of an in-use hood
- Cell phones may not be used in the hood, or handled with chemical gloves
- Chemicals must be removed from the hood when finished
- Proper PPE
- Solvent hood: Chemical/splash goggles and latex gloves.
- Acid hood: Orange acid gloves, acid gown, and chemical/splash goggles. A face shield is required when pouring chemicals or using HF/BOE.
- ABSOLUTELY remember:
- ABSOLUTELY must use proper PPE when doing any wet chemistry
- ABSOLUTELY no heads in the fume hood.
- Contact engineering staff or Steve Jurss if you have a need and we will figure out a work around.
- ABSOLUTELY no concentrated acids or bases in the solvent hood.
- Only exception is commercially mixed dilute developers.
- ABSOLUTELY no cellphones in the hood or cellphone use with your solvent or acid gloves.
- ABSOLUTELY no use of used acid or solvent gloves outside of the hood.
- This means no touching of door knobs, equipment, keyboards, mice, microscopes, etc.
- A clean pair of latex/solvent gloves can be used for sample prep and under acid gloves if desired.
- ABSOLUTELY no wet chemistry done outside the hoods.
- If it can spill, it needs to be done in the hood, working 6" from the opening with vents clear.
- Exception is quick wipe with either IPA or Acetone, but only with spray onto wipes.
- Containers should not be transferred between hoods. If unavoidable, cover with aluminum foil to transport in IPA or water ONLY.
- If you see anyone violating these, either talk to them yourselves or talk to BNC Staff.
- 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
- Solvent hood general
- Sign in when you get to a hood , and out when you leave
- Hood should be free of wipes and chemicals.
- 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.
- Daily use bottles are for spraying only, don't trust them for soaks and sonication.
- For soaks/sonication, pour from below the supply cabinet.
- These are CLEAN.
- Daily use bottles shouldn't be removed from hood.
- 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.
- Finish a bottle completely, (can optionally sit on wipe), then blow dry, then place in bin and label with "cleaned" label.
- Solvent bottle get a triple air rinse, aqueous developer gets a triple water rinse.
- Cap gets dried and thrown in trash.
- Get new bottles from the supply cabinet
- Use a carrier, or two hands if bottle doesn’t fit securely in carrier.
- Place back under hood or back in supply cabinet when done
- Contamination issue and explosive hazard of not.
- Supply room.
- CR wipes, Pipettes, Pens, etc
- If you're not at the hood, chemicals need to be labeled and pushed to the back.
- Labeled on wipe (or pre-printed label) with:
- your name
- your research group
- the chemical
- the time you left the liquid
- your planned return time.
- If solvent, liquid needs to be covered with foil or an evaporating dish.
- Extended processes may be done for up to 72 hrs
- Email me if you need longer
- Unlabeled chemicals, samples, or glassware is considered both trash and a safety hazard, and will be disposed of.
- Halogenated vs nonhalogenated waste.
- Basic developers go down drain
- Prohibited chemicals in spinner area:
- Remover PG
- PRS2000
- HMDS.
- Cleanliness violations are on a 3 strikes system
- We DO understand mistakes and forgetfulness happen.
- When finished in hood:
- Clean up any chemicals on the hood surface
- Dispose of wipes
- Reset the daily use bottles.
- Store any chemical bottles under the hood or in the cabined.
- Sign out.
Acid Hood Usage
Proper Orientation for Acid Hood gloves:
Proper Orientation for Acid Gown:
- Acid hood general
- Sign in when you get to a hood , and out when you leave
- Hood should be free of wipes and chemicals.
- 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.
- 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.
- Cap gets dried and thrown in trash.
- Get new bottles from the supply cabinet using a chemical carrier
- Place back under hood or back in supply cabinet when done
- Contamination issue and explosive hazard if not.
- The supply room has extra CR wipes, Pipettes, Pens, etc if needed. Do not touch the door with acid gloves.
- If you're not at the hood, chemicals need to be labeled and pushed to the back.
- Labeled on wipe (or pre-printed label) with:
- your name
- your research group
- the chemical
- the time you left the liquid
- your planned return time.
- Extended processes may be done for up to 72 hrs
- Unlabeled chemicals, samples, or glassware is considered both trash and a safety hazard, and will be disposed of.
- Acid and base waste goes down the drain, with LOTS of DI water
- Let any heated solutions cool to about 40 C before pouring down the drain.
- Any solutions containing heavy metals need to be removed of separately.
- When finished in hood:
- Clean up any chemicals on the hood surface
- Dispose of wipes
- Reset the daily use bottles.
- Store any chemical bottles under the hood or in the cabinet.
- Sign out.