Electronics Forum | Mon Nov 10 22:15:53 EST 2008 | fctassembly
Bob The actual process for converting from SAC305 to SN100C is pretty painless. Basic steps: 1) make sure your solder pot is at temp 2) de-dross 3) pull pumps/flow duct(s) and clean 4) purge pot of SAC material 5) remove any remaining dross/alloy i
Electronics Forum | Thu Oct 02 01:47:57 EDT 2008 | myleb
I'm new to SMT. Now, i'm making program for SPI machine to inscpect for solder paste of SP60-MU. I think this is a very good printer but some times, my program shows only 50-60% of volume transfer; and the average height is very high: nearly 200 pct.
Electronics Forum | Wed Oct 15 07:31:29 EDT 2008 | davef
Similar to Jax's comment, concern yourself with the the activity level of the flux. A more active flux would be more aggressive in removing tarnish. Certainly, the choice depends on the type and amount of tarnish. Probably, you need to consider your
Electronics Forum | Sat Oct 18 20:35:25 EDT 2008 | arosario
I see, maybe changing my peak temp in reflow will help. I'll try do eval again... Actually, once I did have evaluated a longer pre-heat but on my previous eval, I didn't change the peak temp. Maybe reflow can help compensate to my problem in the part
Electronics Forum | Tue Nov 18 07:22:56 EST 2008 | wewilldoit
Hi folks! TI told us that we are the only one with the following problem... We discovered a really bad wetting characteristic of some SMD ICs from BurrBrown. At the moment: XTR106 / INA118 / ADS7844. After the reflow process we found out that this pa
Electronics Forum | Wed Nov 26 13:31:40 EST 2008 | stepheniii
I don't know why they use it. I just know I read a TI white paper that said the problem wasn't their fault even though they knew that paladium made the parts hard to solder. And once when I started a new job one of the guys said that the owner had
Electronics Forum | Fri Dec 19 10:18:05 EST 2008 | dyoungquist
On TH parts we have been hand soldering. This last summer we purchased a Rhythm selective solder machine from RPS automation. I did a factory tour of both RPS and ACE since both facilities are about 1/2 mile from each other. In comparing the 2 c
Electronics Forum | Mon Jan 12 03:55:27 EST 2009 | prkonrad
Sorry, if my first comment was a bit offensive against PCB manufacturers (it was not really intended :( ). We have already discussed the above mentioned issues with the manufacturer, and they stated, that everything is within specification... (and y
Electronics Forum | Wed Jan 14 08:43:14 EST 2009 | prkonrad
I did not change my mind, I just said that we sat down with the manufacturer and showed them the 3-4 different color PCBs for one product. They agreed that it is not acceptable... and supply us only from one of their sites. (the different manufacturi
Electronics Forum | Thu Jan 15 10:33:05 EST 2009 | rrpowers
One thing you must be very careful with when using Bismuth is that there is no lead anywhere else within the process, either components or boards. Lead-terminated components or hot air solder leveled (HASL) finished boards used in combination with a
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