Electronics Forum: show (Page 131 of 233)

Re: Reflow Profiling

Electronics Forum | Tue Jul 11 13:21:30 EDT 2000 | Deborah Troxell

We use the Slimkic for our oven porfiles and run a very high product mix too. My first question is do you use the same progam for all your boards or do you run different temptures profiles for each module? How are the gold boards getting destroyed? W

Re: wave solder

Electronics Forum | Mon Jun 12 14:03:12 EDT 2000 | MikeF

Jason, First, check with the manufacturer of the flux you are using. They can tell you what board topside temperature range the flux is designed for. Some other info is needed for the residue part. Is it showing up on the same board, or different boa

Re: Waverider

Electronics Forum | Wed Jun 07 12:11:42 EDT 2000 | Rex Breunsbach

First of all I would like to thank you for your candid comments on this subject. ECD listens to its customers and values their input. Yes, our experience shows the coupons have a 30 to 60 run life depending on application. This works out to between

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Electronics Forum | Fri May 26 12:24:48 EDT 2000 | Steve Thomas

Greetings! I'm hoping that you can help me with a problem, possible due to my pea brain not being able to figure out how to work the site. When I do a search of the forums and get 250 hits, the only way I can see the last one is to go through the w

Re: 0201Technology

Electronics Forum | Fri May 12 04:46:32 EDT 2000 | Wolfgang Busko

There�s obviously still a lot of work to be done to get those "beasts" on the board. I wonder if anybody has solved the problems already and is able to say "we do it and it�s working well under the following conditions". I read the article in the las

Re: Intermetallics and reflow profile

Electronics Forum | Wed May 03 20:24:22 EDT 2000 | Dave F

MF: I know of nothing that addresses your question directly. Let me suggest: * Technical types at your solder supplier should be able to help. * "Effect Of Intermetallic Compounds On The Thermal Fatigue Of Surface Mount Solder Joints" PL Tu, et a

SPC Data

Electronics Forum | Tue May 02 12:13:07 EDT 2000 | Sal

Guys, We are currently on the market for an SPC tool for our reflow & wavesoldering equipment. In order to please customers we require a tool to measure the repeatibility of our of both the above mentioned processes and collate this information ( SP

Re: Wave Soldering No-Clean Bottom-Side SMT

Electronics Forum | Tue May 02 05:35:07 EDT 2000 | Donnie

There are a number of different things to ask youreself here. What type of flux are you using. 330, 351, 310 etc. Do you have a hot air knife? As for the residue, that's gonna show on almost any wave soldered pcb. We have fought the issue for a long

Re: BGA Xray inspection

Electronics Forum | Thu Apr 27 21:20:38 EDT 2000 | Dean

Here are some pointers to use during your X-ray inspection. Microcracking is virtually impossible to determine with X-ray. However, I suspect you are looking for "hard" opens. Those are much easier to find visually. If using a paste-and-place pro

Re: Help Bottom Side Components

Electronics Forum | Wed Apr 12 20:56:18 EDT 2000 | Dave F

Kevin: You're correct. Loose the glue, unless you're waving second side or have real heavy components. Check the archives for component weights, references, and what not. I believe that most people (let's see a show of hands kids) are using two pa


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