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Date: | Mon, 4 Nov 1996 17:06:20 -0600 |
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Tracy
We sell 3 products that will strip the tin/lead (OS-203, OS-204, and OS-243). The copper will be etched by the products as soon as the tin/lead is removed. The parts will be acceptable based on how "in-tact" they need to be (they etch the exposed bare copper as low as 40 microns in 1 minute). If you have any other questions, feel free to get in touch with me.
Vince Condra
International Sales Manager
Oliver Sales company
13445 Floyd Circle
Dallas, TX 75243-1503
(972) 231-1522 - Phone
(972) 644-3585 - fax
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From: [log in to unmask][SMTP:[log in to unmask]]
Sent: Monday, November 04, 1996 1:27 PM
To: [log in to unmask]
Subject: Chemistry to strip 90/10 SnPb
I'm looking for chemistries/recipes that will be effective in stripping 90/10 tin-lead alloys off of copper leadframe devices (7025 and 194 Cu) that will leave the copper intact. I don't really care what happens to the plastic packaging. I know tin and/or tin-lead is used as an etch resist in the PCB industry, whatever chemistries are in use will probably work for me.
Thanks in advance for your responses.
Tracy Tennant
Reliability Engineer
Micron Technology, Inc.
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