Electronics Forum: his (Page 66 of 120)

Re: Selective soldering

Electronics Forum | Tue Sep 28 09:16:10 EDT 1999 | Wendy Casker

| | What selective soldering products should I use for a low production rate, high-mix product line? I am looking to get rid of some hand soldering. I have seen exselect (selective soldering pot method), pillarhouse (small flow solder nozzle with rob

Re: Driver problems on DIP insertion machine

Electronics Forum | Fri Sep 24 20:33:44 EDT 1999 | Ron Gillam

| | | The machine is a Universal 6796 DIP inserter. The driver card for the X axis burned a couple of resistors and a trace, probably a couple of power transistors too. I had a spare card and put it in. Now on powering-up the machine, the X-Y tabl

Time to use alternative finishing ???

Electronics Forum | Fri Sep 10 13:50:24 EDT 1999 | Jose RG

We have a product, with various PWBs, with over 600 parts each one (We are a low Volume/high mix company with an average component placement per PCB between 250 to 300 parts). This PWBs have 7 to 10, 20 mils pitch parts. We are having problems with o

Re: Time to use alternative finishing ???

Electronics Forum | Fri Sep 10 14:29:48 EDT 1999 | Doug Philbrick

| We have a product, with various PWBs, with over 600 parts each one (We are a low Volume/high mix company with an average component placement per PCB between 250 to 300 parts). This PWBs have 7 to 10, 20 mils pitch parts. We are having problems with

Re: Fuji Feeder Alignment Tools

Electronics Forum | Wed Sep 08 19:29:43 EDT 1999 | Steve E ( Fuji America )

| We are using some Fuji machines and have trouble picking parts up from damaged or mis-adjusted feeders. When I was working with Panasonic machines I was able to buy a feeder alignment jig from them to align the pick spot in the feeder, but Fuji doe

Solder Joint Integrity

Electronics Forum | Tue Aug 31 20:51:20 EDT 1999 | Raeto Zryd

Dear fellow process engineers, Some solder joints "trough hole component" have cracked. I suspect that in the market some technician tryed to straighten some components (LED) and has applied enough force to actually brake the joint. The joints were

Re: Solder Joint Integrity

Electronics Forum | Wed Sep 01 13:48:29 EDT 1999 | Dave F

| Dear fellow process engineers, | | Some solder joints "trough hole component" have cracked. I suspect that in the market some technician tryed to straighten some components (LED) and has applied enough force to actually brake the joint. The joints

Re: Electroless Tin Plating

Electronics Forum | Sat Aug 21 12:13:17 EDT 1999 | Brian

| I am being asked, by my vendor and Purchasing people about converting from Tin/lead pads on P.C.B's to Electroless Tin Plating. | Can any one tell me what I have to change in my SMT | process (paste, reflow, etc) If any? | I ran one P.C.Boar

Re: I looking for a beta site for a new drying process

Electronics Forum | Thu Aug 19 04:49:09 EDT 1999 | Earl Moon

| | | We have developed a new process for removing moisture from surface mount devices. We have one site where PCB laminate drying has been reduced to 1.5 hours. A standard oven took 4 hours to do the job. I am looking for a firm who does large scale

Re: REFLOWING WHITE TIN PLATED PADS

Electronics Forum | Wed Aug 18 21:18:00 EDT 1999 | Dave F

| WE ARE CURRENTLY HAVING PROBLEMS REFLOWING BOARDS WITH WHITE TIN PLATING. WE ARE NOT GETTING GOOD WETTING ON THE PADS. | WE HAVE CHECKED THE REFLOW PROFILE AND TRIED DIFFERENT PASTE'S. | WE THINK THERE MAY BE CONTAMINATION OR OXIDATION ON THE PADS.


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