I suspect you do not truly need ultra clean boards. If you do, you are embarking on a long and difficult road. There are testers to measure board cleanliness. I suggest you get one and determine your working requirements.
Zero ion, ultra clean requires a clean room type assembly. Very difficult to do. I had a zero ion requirement. The PCBs had large clear out areas around the critical components. My biggest problem was both the PCB fab vendor and the assembly vendor insisted on placing dirty test stamps in the clear out areas in violation of the board specifications. The combination of a carbon based ink in a solvent that penetrated the gel coat caused a 100% defect rate. Numerous lots returned to vendor finally convinced them to read the specification before they made the product. It took four months to get my first lot of ultra clean boards. Fred Townsend "Syd Levine (AnaLog)" wrote: > I am working on a high voltage shunt regulator design where contamination on > the circuit board is causing problems. What is the best way to scrub or > rinse all or most of the ionic contamination off a circuit board? I usually > use denatured alcohol to remove flux residue, but that is not good enough in > this case. Any suggestions or wisdom would be much appreciated. > > Here is a link to the Data Sheet on the little project: > www.logwell.com/products/Codatron.PDF > > Syd H. Levine > AnaLog Services, Inc. > Phone: 270-276-5671 > Telefax: 270-276-5588 > E-mail: [EMAIL PROTECTED] > URL: www.logwell.com > > -- > Author: Syd Levine \(AnaLog\) > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB CHIPDIR-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). -- Author: Fred Townsend INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
