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Thu, 7 Dec 2000 20:52:51 -0500 |
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Hello All:
When applying immersion gold onto 4mil wide x 8mil long pads for wire
bonding, the gold finish result left much to be desired. In a string of pads
adjacent to each other, we find a shiny surface of gold next to a very dull
gold finish. In some cases the color is brown.
What would cause such an effect in the same plane?
Any input would be greatly appreciated.
Charlie
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Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
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the BODY (NOT the subject field): SIGNOFF Technet
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
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