Electronics Forum: help (Page 861 of 1171)

Solder On Gold

Electronics Forum | Sun May 16 03:38:49 EDT 1999 | Zambri

I'm running memory module product- SMT double reflow ( 12 modules per panel). I'm using the epoxy base solder paste in order to reduce the flux spattering problem onto the gold finger which could lead to the intermittent contact problem. I don't fa

Re: Solder On Gold

Electronics Forum | Wed May 19 11:07:25 EDT 1999 | Glenn Robertson

| I'm running memory module product- SMT double reflow ( 12 modules per panel). I'm using the epoxy base solder paste in order to reduce the flux spattering problem onto the gold finger which could lead to the intermittent contact problem. | | I do

Re: BGA rework : IR or convection

Electronics Forum | Tue May 11 12:02:03 EDT 1999 | Tony

| We are currently looking at purchasing some BGA rework equipment. Could someone give us the pro's and cons of IR heating (top/bottom)vs. hot air convection ? | All other tips are also welcome. | | Thanks | Philip, I have been doing BGA rework for

Re: Wave Soldering Temperature Profile

Electronics Forum | Wed May 05 13:15:43 EDT 1999 | Boca

| Can anyone pls email me a typical temperature profile for wave soldering process. | | Thank you vey much. | | rdgs... | Typical depends on the processes you're developing. Key factors in my experience are flux type and requirements, component

Re: Is there any good Training Tape

Electronics Forum | Thu Apr 29 20:03:10 EDT 1999 | Cunli Jia @ SMTnet

Steve, Check out the SMTnet First Chapter Bookstore on this site. We carry several tapes and books that may be of interest to you. If you find what you need elsewhere, please let us know too, so that we can add them in our bookstore. Please fol

Re: Is there any good Training Tape

Electronics Forum | Sat May 01 10:04:35 EDT 1999 | Bob Willis

| I would like to know if there is any good training for Hand Soldering, Component Identification, Wave Soldering, and so on. | | I have seen two diffenent tapes and they were short and poorly done, I would like to buy some if I knew it had some goo

Re: Hunter Paste Height Measurer

Electronics Forum | Thu Apr 29 16:52:11 EDT 1999 | Steve Gregory

| | | | Has anyone heard of this company? We have one at our facility and I can't find them listed anywhere. I looked through this years NEPCON directory with no listing there either. We have some parts that need replacing so any help would be gre

Re: Hot Air Nife

Electronics Forum | Wed Apr 28 16:49:47 EDT 1999 | Tony A

| | Anyone using hot air nife for wave soldering process. | | Does it work? | | Does it really eliminate solder bridging and does it create any other problems? | | | | any feed back will be much appriciated. | | | | Thanks | | | | Tony A | | |

Re: stencil fixture

Electronics Forum | Tue Apr 27 13:41:16 EDT 1999 | Scott McKee

| i am trying to design a stencil fixture for manual printing. has anyone done this before or has an idea? thanks | There are sooo many variables; product size, 1 vs. 2 sided boards, support, component size, pitch, stencil alignment, PCB thickness,

Re: Typical first pass yield in electronics

Electronics Forum | Tue Apr 27 09:31:45 EDT 1999 | Robert L. McCallum

On circuit board assemblies first pass yields need to be above 98%, if a supplier is below this level it is a indication that: he has poor control of the manufacturing process; Poor component selection (price over quality; excepted a poor design from


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