Electronics Forum | Thu Sep 02 13:58:57 EDT 2004 | Chen
Hi Shean, Thanks for your advise but now currently we trying using the new chemical to remove the residue which recommanded by our supplier, so hopefully can be success. Thanks. Regards, Chen
Electronics Forum | Mon Aug 30 16:07:06 EDT 2004 | Shean Dalton
Hi Chen, Based on your posted message, the following ideas are for your consideration: "brown residue" The water soluble solder paste you are using could be a water soluble rosin solder paste formulation. Perhaps the solder paste may not be proper
Electronics Forum | Sun Aug 29 19:17:34 EDT 2004 | aqueous
Chen, It is always best to place one�s effort on determining the cause and content of the residue rather than trying to work around it. The first thing you must determine is the nature of the residue. Is it flux? In many instances, the residue is
Electronics Forum | Wed Sep 01 16:52:57 EDT 2004 | Shean Dalton
Hi Chen, This is largely dependent on what type of chemistry can successfully remove the residue, while being compatible with your cleaning equipment. Austin American Technology is happy to help you determine this, please contact me offline to disc
Electronics Forum | Wed Sep 01 09:12:04 EDT 2004 | Chen
Hi Shean, Thanks for your advise. But what kind of chemical i needs to add inside to the washing machine when cleaning. Regards, Chen
Electronics Forum | Thu Jul 31 15:41:23 EDT 2003 | davef
Q: Could any of you guys tell me what exactly is this greenish thing ? A: No, but is not copper oxide. Copper oxide is brown, the color of a penny [here in the US] or an untreated copper laminated trace on a board. Many copper salts are greenish in
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