Hi, may I missed something, has someone made a test with a ultrasound cleaner and the cleaning liquids.
and made a ultrasound cleaning machine by him self ? I need a schematic for such a machine. Kai Klien ----- Original Message ----- To: "Multiple recipients of list CHIPDIR-L" <[EMAIL PROTECTED]> Sent: Saturday, March 01, 2003 12:59 PM > > 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). > -- Author: Kai Klein 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).
