Electronics Forum: pcb and solder and defects (Page 9 of 24)

Ecofree 303 conductive and corrosive?

Electronics Forum | Mon Aug 24 03:59:26 EDT 2009 | hurr

Hallo Joanne, I had employed by producer of Ecofrec 303. We make many tests of corrosion and conductive test in our company. All results of this tests was OK . Vast majority correspond mil standarts. When I ask my labor assistent in BRY, white residu

Comparison between Vitech and Mirtec

Electronics Forum | Mon Jan 10 18:35:05 EST 2011 | eadthem

Ive used a Mirtec machine for 3 years MV3L with side angle inspection. Mirtec has some issues documentation, and repair plus. But there machine is impressive and the AOI software is good. We can find about 90-99.99% of all errors using just the 5

BGA ball and PCB pad

Electronics Forum | Fri Feb 20 13:01:26 EST 2004 | Jay

First, it depends on the alloy composition of the solder. As you might know, eutectic Sn/Pb solder has the lowest melting point among available conventional solder systems. (except those based on Sn-In and Sn-Bi systems.) For example, 63Sn/37Pb - 183

Wave Cassettes and Heat convection

Electronics Forum | Tue Jan 16 07:59:36 EST 2007 | tk380514

we worked out that the wave soldering cassettes Duratstone material takes alomst 35 degree away from the surface of the pcb, and the speed is already too slow it should be over 1.0 - 1.8 meters a minute but its now already 82 cm a minute, in order to

Solder Balls and conformal coating

Electronics Forum | Mon Apr 08 14:16:29 EDT 2019 | sever_83

We've never heard of seen of such a thing either. We tried a clean sample board and applied con coat. Same process through out and we saw nothing. After speaking with the original operators who was curing the boards he had left the boards much longer

J-STD-002 and -003 solderability testing...

Electronics Forum | Fri Jun 29 14:15:00 EDT 2001 | stefo

This is a question about complying with J-STD-001 solderability testing. Do any of you have your vendors certify that the components and PCB's that you buy from them comply with the solderabilty requirements spelled out in the -002 and -003, in lieu

Re: BGA and Gold Boards

Electronics Forum | Fri Jun 19 14:25:24 EDT 1998 | Earl Moon

| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | There has b

Re: BGA and Gold Boards

Electronics Forum | Fri Jun 19 13:40:25 EDT 1998 | Terry Burnette

| Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | Mike There has been a

Re: BGA and PCB finishing

Electronics Forum | Tue Mar 14 07:59:41 EST 2000 | JAX

Emmanuel, The discussion on what finish to use whether it be HASL, Immersion gold over nickel, Organic Solderability Preservatives, ect...... is still ongoing. This is not the only decision you need to make. Do you plan on Soldermask Defined Pads? Wh

Re: BGA and PCB finishing

Electronics Forum | Tue Mar 14 07:59:41 EST 2000 | JAX

Emmanuel, The discussion on what finish to use whether it be HASL, Immersion gold over nickel, Organic Solderability Preservatives, ect...... is still ongoing. This is not the only decision you need to make. Do you plan on Soldermask Defined Pads? Wh


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