2024-12-20 to 2025-01-02: Reduced Holiday Operations

Dear Birck Research Community,

The Purdue winter recess begins effective Friday afternoon December 20th and concludes Thursday morning, January 2. The university is officially closed during this time. As we have done in past years, the Birck Nanotechnology Center will remain available for research but will be unstaffed and hazardous gasses will be unavailable. Lab work may otherwise proceed, though any fume hood work must be done with someone else present in the same laboratory or cleanroom bay (the "buddy" system). Click the link above to get more detail about equipment conditions and rules.

Refer to the Material and Process Compatibility page for information on materials compatible with this tool.
Equipment Status: Set as UP, PROBLEM, or DOWN, and report the issue date (MM/DD) and a brief description. Italicized fields will be filled in by BNC Staff in response to issues. See Problem Reporting Guide for more info.

Status	UP
Issue Date and Description
Estimated Fix Date and Comment
Responding Staff

iLab Name: C - Westbond 7400A
iLab Kiosk: BRK Packaging and Assembly Core
FIC: David Janes
Owner: Tim Miller
Location: BRK 2092

Overview

General Description

This precision tool welds gold wire from chip pad to package. The pad surfaces to be bonded must be compatible with gold or the bonds will not stick. Gold, copper, anuminum, or silver work well. Titanium, ITO, and diamond can not be wire bonded

Specifications

Spec sheet from West Bond - http://www.westbond.com/7400aspc.htm

Technology Overview - Remove if multiple tools use the same technology/process

Sample Requirements and Preparation

No special sample cleaning is required prior to wire bonding. Sample metallization must be thick enough to withstand the rigors of bonding. Samples must be securely mounted in their respective packages, and the package must be securely mounted to the bonding fixture. Double-sided cellophane tape is not an acceptable mounting technique.

Standard Operating Procedure

Questions & Troubleshooting

Birck Nanotechnology Center Wiki

Westbond 7400A Thermosonic Wire Bonder