These are getting baked after washing as part of the testing routine. These boards have to be able to go to 150C, and really need to go to 175C. Would soaking them in the distilled water help get the ionic residue off em. I don't seem to be able to get rid of all of it.
> BTW do you bake your PCBs after you wash them? > > Fred Townsend > > > "Syd Levine (AnaLog)" wrote: > > > I discoverd my problem, I think. I have been trying to use grocery store > > (Wal-Mart) distilled water to wash these dern PCBs. At 150C, the ionic > > residue is causing trouble. Where can I find good DI water in bottles? I > > hate to invest in a machine when I need maybe a gallon or two per week. I > > suspect I need water that is close to the chip making standards (18 > > megohm/cm). > > > > 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). > -- 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).
