Electronics Forum: index (Page 1374 of 7904)

Re: ORBOTECH vs. VISCOM

Electronics Forum | Mon Mar 06 10:48:10 EST 2000 | Paul

Michael, The infomation you recieved by Wade is incorrect. Viscom infact does have over 15 systems in the USA and also has a full staff of Engineers. Paul

Re: STENCIL CLEANING WITH SOLVENTS

Electronics Forum | Fri Nov 12 11:05:04 EST 1999 | Mike Konrad

You may want to consider Zestron's Vigon SC200 (703) 589-1198. Many of our customers use this chemical with great success. Another alternative is Hydrex from Petroferm (904) 261-8286. Good Luck, Mike Konrad Aqueous Technologies Corporation

Dull Solder

Electronics Forum | Thu Nov 11 21:10:41 EST 1999 | Edmund

I experience dull solder at the reflow station runing some SMD LED. It is a reject for dull solder. Is there anything wrong in the setting of the oven temperature? Temerature too high or too low? Pls advise. Thank You Rdgs.....

0603 component drift

Electronics Forum | Thu Nov 11 19:07:39 EST 1999 | Gary Kemp

We are having a continuing problem with 0603 chip capacitors not centering themselves on the pads during the reflow process, causing an open condition at one end. Does anyone know what can be done to alleviate this? Thanks much. Gary

Re: 0603 component drift

Electronics Forum | Thu Nov 11 19:23:33 EST 1999 | Dave F

Gary: Sounds like the spacing between each pad for the component are too far apart. My 2�. Dave F

Re: 0603 component drift

Electronics Forum | Tue Jun 20 02:51:52 EDT 2000 | Leland Woodall

Gary, We've experienced the same problem in the past, and found that moving the stencil apertures closer together solved the dilemma. This was a much easier solution than having to redesign the PWB. Leland

No clean and f devices

Electronics Forum | Thu Nov 11 17:53:59 EST 1999 | Jeff Tamagi

I have read in some magazine articles that there is poor signal to noise ratio of RF devices when no-cean solder is used. The frequecies used exceed one Mhz? Is this true?

Re: No clean and f devices

Electronics Forum | Fri Nov 12 10:40:17 EST 1999 | Dave F

Some under-the-hood automotive people have moved from no-clean to clean, and I mean CLEAN, recently. Hmmmm Dave F

Gold embrittlement

Electronics Forum | Thu Nov 11 17:49:54 EST 1999 | Jeff_Tamagi

Do I have to tin gold lead devices? Can I use indium? Can I use lead-free Can I use tin-free

Re: x,y digitizer and optical comparator

Electronics Forum | Tue Nov 16 18:10:15 EST 1999 | Richard

Michael, IMP Printed Circuits in Adelaide ( Australia) have an old XY table / Digitiser head system that just needs a Maher controller to get it up and running. Their email is imppcb@codan.com.au attention Bob Armstrong. Regards Richard


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