Electronics Forum: multilayer pcb requirements (Page 12 of 103)

Re: Air-Vac stuff

Electronics Forum | Thu Aug 19 22:59:48 EDT 1999 | Jeff Ferry

| I'm trying a second time to post this very important message, to me, concerning Air-Vac's following creation. Does any own and use this stuff successfully to remove solder from 20 layer and up MLB's with .020" diameter holes? Also, is any of the ad

Re: Air-Vac stuff

Electronics Forum | Thu Aug 19 23:56:49 EDT 1999 | Earl Moon

| | I'm trying a second time to post this very important message, to me, concerning Air-Vac's following creation. Does any own and use this stuff successfully to remove solder from 20 layer and up MLB's with .020" diameter holes? Also, is any of the

Re: Air-Vac stuff

Electronics Forum | Fri Aug 20 09:33:51 EDT 1999 | Don Morgenstern

Earl & Jeff Our machine is different than the Electrovert Solder Pak in that it is does not behave like a "volcano". Jeff, please contact me if you have safety concerns as perhaps you also want to consider our equipment. | | I'm trying a second ti

Re: Providing Thermal Relief On Vias

Electronics Forum | Wed Jun 03 21:25:33 EDT 1998 | John Allan

| Hello: | BACKGROUD: SMT components soldered on the top-side of boards that also require wave soldering have the potential to reflow during wave soldering. Reflowing these components during wave soldering is not good. It can cause cold joints, op

Re: Providing Thermal Relief On Vias

Electronics Forum | Thu Jun 04 08:32:21 EDT 1998 | Dave F

| | Hello: | | BACKGROUD: SMT components soldered on the top-side of boards that also require wave soldering have the potential to reflow during wave soldering. Reflowing these components during wave soldering is not good. It can cause cold joints

Re: Problems with wave solder

Electronics Forum | Thu Nov 19 09:32:52 EST 1998 | Earl Moon

| | | | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wav

Re: Problems with wave solder

Electronics Forum | Thu Nov 19 09:55:47 EST 1998 | Dave F

| | | | | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the w

Venezuelan company looking to assemble a PCB Factory

Electronics Forum | Fri Aug 20 19:01:26 EDT 2010 | varivenca

VARIVEN,C.A, is a newly emerging company in the electronics field. Variven was established in 2009 to take care of design, repair and maintainance of pcb cards and electronic machinery for oil companies. As of now we are creating basic boards for o

Re: Providing Thermal Relief On Vias

Electronics Forum | Thu Jun 04 12:22:12 EDT 1998 | John Allan

| | | Hello: | | | BACKGROUD: SMT components soldered on the top-side of boards that also require wave soldering have the potential to reflow during wave soldering. Reflowing these components during wave soldering is not good. It can cause cold jo

PS-125 Requirement

Electronics Forum | Thu Dec 27 12:39:55 EST 2012 | nor

Requirement on PCB fab drawing states "PCB must meet requirements of PS-125 and PS-129". What is this requirement?


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