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Date: | Fri, 13 May 2005 07:40:23 -0700 |
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Saying that "chemical contamination occured" does not imply that the failure was caused by the compound described... that said, I remind you that PCB's are only rarely rinsed in deionized water, and that all tap water has Chloride and Chlorine, which is a halogen.
Rudy Sedlak
RD Chemical Company
"Bissonnette, Jean-Francois" <[log in to unmask]> wrote:
Hi all,
We recently had a number a failures on MOSFETs and set samples for
analysis. The analysis from the supplier said that some chemical
contamination occured and it's related to an halogen subtance.
Can anyone tell me in a board fabrication process where such a
contamination occur? Are fluxes containing halogen substances, cleaning
products etc.
Thanks in advance!
J-F
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