Electronics Forum | Sat Aug 07 11:14:19 EDT 1999 | JohnW
| | Mike, | | | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no goo
Electronics Forum | Thu Aug 05 08:39:26 EDT 1999 | Wayne Sanita
| | | Hello, If you are using no-clean and they are entrapped in the flux it is also IPC accepted but i havent found a customer yet who agrees with that. Im sure you have checked your profile. I had the same problem with chip components but after c
Electronics Forum | Thu Aug 05 10:55:09 EDT 1999 | Wolfgang Busko
| | | | | | Hello, | If you are using no-clean and they are entrapped in the flux it is also IPC accepted but i havent found a customer yet who agrees with that. Im sure you have checked your profile. I had the same problem with chip components but
Electronics Forum | Tue Jul 27 16:08:04 EDT 1999 | Kathleen at ATL
I'm working on a prototype board that requires a 600 pin BGA. This is a metal top BGA being placed on a 11" x 17" PCB about .62" thick. The part is 1.77" square with a 50 mil pitch and 30 mil bump diameter. The bumps are located on the perime
Electronics Forum | Sat Jul 24 23:18:00 EDT 1999 | Scott McKee
| We are going to smt ic's on the component side of our pcb's. | The problem is we are going to have to do this by hand. | We have a hot air station and vac pencil, but How reliable is this process. | We've tried it on proto's and had some shorting p
Electronics Forum | Fri Jul 16 09:49:25 EDT 1999 | Ronan BERTON
Hello, i'm looking for informations about companies which are using system to verify the loadind of a SMT machine by using barcode (on the slot on the machine & on the reel). I'm in charge of the installation of this kind of system. I expect to have
Electronics Forum | Thu Jul 15 14:18:24 EDT 1999 | Gord Wait
I'm designing a board where the parts will only fit if I do one of the following: 1. Put BGAs on both sides 2. Put BGAs on top, smt TSOPs directly underneath and using blind vias to keep the real estate on the bottom side below the BGA parts. Can
Electronics Forum | Thu Jul 15 15:41:00 EDT 1999 | Doug
| I'm designing a board where the parts will only fit if I do one of the following: | | 1. Put BGAs on both sides | | 2. Put BGAs on top, smt TSOPs directly underneath and using blind vias to keep the real estate on the bottom side below the BGA pa
Electronics Forum | Thu Jul 15 16:59:57 EDT 1999 | Glenn Robertson
| I'm designing a board where the parts will only fit if I do one of the following: | | 1. Put BGAs on both sides | | 2. Put BGAs on top, smt TSOPs directly underneath and using blind vias to keep the real estate on the bottom side below the BGA pa
Electronics Forum | Thu Jul 15 10:28:49 EDT 1999 | Boca
| I'm looking into vision inspection equipment to automatically inspect SMD placement and solder joint quality. Does anyone have any recommendations or know of any commonly used equipment? Do other manufacturers use vision systems at their inspecti
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