Electronics Forum: part (Page 501 of 1117)

BGA fab: what's reasonable practise for double sided PCB?

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

Re: BGA fab: what's reasonable practise for double sided PCB?

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

Re: BGA fab: what's reasonable practise for double sided PCB?

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

Re: BGA fab: what's reasonable practise for double sided PCB?

Electronics Forum | Thu Jul 15 21:18:27 EDT 1999 | Scott McKee

| 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

Why Bar Code?

Electronics Forum | Wed Jul 14 17:03:15 EDT 1999 | John O'Brien

I'm doing some basic research in trying to understand the purpose and drivers that cause bar code (or other) marking of PCBs. I would appreciate any knowledgable volunteers willing to speak with me -your name, number, the best time for the call- or r

Re: dispensing paste for rework

Electronics Forum | Fri Jul 09 11:28:24 EDT 1999 | Earl Moon

| Has anybody successfully used an automated dispensing system to put solder paste dots on .5 mm pitch pads?? I need to replace some Meritec tsop sockets and I don't want to use the single site stencils for .5 mm parts. | Carol, Don't blame you f

Re: Component Thermal Profiles

Electronics Forum | Tue Jun 08 10:01:34 EDT 1999 | John Thorup

| Can anyone please help me locate details on maximum allowable temperatures of components when passing through a reflow oven. | | I think I want the thermal profile for the part, or a source or standard which will allow me to check if I can safely

New technology introduction process

Electronics Forum | Mon Jun 07 15:05:07 EDT 1999 | Mike Zurn

We are in the process of refining our process to introduce new and advanced technologies into our company and I was wondering what type of system your companies use. A few questions that you may consider include: 1. Do you have a separate group res

Re: 2512's To Wave or not to Wave????

Electronics Forum | Tue Apr 27 13:33:29 EDT 1999 | JohnW

| Has anybody had experience wavesoldering 1 watt 2512 resistor packages?? I know it can be done, but are there reliability issues? | | We are in the middle of a new product and the question was posed to me "Can we use 2512 1 watt resistors on the

Re: Hey Guys, you gotta check this out!

Electronics Forum | Mon Apr 26 13:19:29 EDT 1999 | Dave F

| Hey Guys! | | Look what I get to try and do this week! I got handed a cardboard box on Friday afternoon with the parts and 20 of these little jewels! That's both sides of the board by the way... | bla-bla-bla | | Sure you don't wanna take this o


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