Electronics Forum: electronic (Page 1276 of 7930)

Ionic contamination

Electronics Forum | Sat Jul 08 00:06:16 EDT 2000 | Edmund

Can any pls enlighten me what is the purpose of using DI water during washing of PCBA. If the board is not wash using DI water , what will happe? What is the range of resitivity reading should be. Rdgs...

Re: Trimming of Gasfets

Electronics Forum | Tue Jul 11 16:12:24 EDT 2000 | dstamour

Dave, They are monolithic amplifiers and similiar things. case styles VV105, AF320, AF190, BBB and GD-24. We have a customer who wants all these trimmed before placing on the board.

Re: Cycle Alarm X-reach on CP6

Electronics Forum | Sun Jul 09 03:05:14 EDT 2000 | Ben

Hi Hermie, Did you perform a Servo-zero-adjustment and Gain calibration on the amplifier after replaced it ? This is necessary fine turning when replacing the amplifier. You had better ask Fuji service center for the procedure. Hope this help you.

Re: market data

Electronics Forum | Sun Sep 17 09:51:31 EDT 2000 | fborgnon

Hello ! I am also looking for similar information. Total market in the world is for SMT machines $3,9billion in 99 expected 8,41 billion in 2006. Do you have any information on how many machines produces that represent and the share for USA, Asia a

Re: Rigid-flex PCB- Cu on non Cu defined area.

Electronics Forum | Wed Jul 05 20:50:42 EDT 2000 | Dave F

Hey KC roll-up IPC-A-600 and smack those bums on the nose with it and say "Bad fabricator don't do that on the floor again" in a firm voice.

Re: Rigid-flex PCB- Cu on non Cu defined area.

Electronics Forum | Thu Jul 06 09:26:21 EDT 2000 | K. Chak

Hi Dave, Thanks for the reply. Which part/page of IPC-A-600 Rev F. does it call for? ..may be I am not looking in the right spot. Thanks again. Regards Kc.

Re: Rigid-flex PCB- Cu on non Cu defined area.

Electronics Forum | Thu Jul 06 09:26:24 EDT 2000 | K. Chak

Hi Dave, Thanks for the reply. Which part/page of IPC-A-600 Rev F. does it call for? ..may be I am not looking in the right spot. Thanks again. Regards Kc.

Re: Rigid-flex PCB- Cu on non Cu defined area.

Electronics Forum | Mon Jul 10 20:42:26 EDT 2000 | Dave F

KC: I'm not current to F. Look under "conductor characteristics for "spurious foil." That should do ya.

DPM of escape defects (detected in ICT) ???

Electronics Forum | Wed Jul 05 00:57:17 EDT 2000 | Roni Haviv

Hello, I need some information about the DPM of escape defects that were detected in ICT -not including defects that were detected in visual inspection sooner. I'll appreciate any kind of information, Thanks Roni

Gold Fingers Discoloration

Electronics Forum | Mon Jul 03 23:11:04 EDT 2000 | Patrick Ng

hi, We are receiving PCBs with gold fingers "discolored". The "discolored" gold fingers can be removed if rub with soft eraser! We are working with suppliers to determine the root cause and eliminate this issue. Pls assist if you have encountered si


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