Electronics Forum | Sat Jun 23 08:29:04 EDT 2001 | davef
Well, at least I don�t feel so bad that we�re not the only ones going anal on this blankin� cap thing. We�re gunna change process on ever effin wave soldered SMT cap!!! I�m going to off myself!!!! And in about 15 seconds, some doodoo brain is goin
Electronics Forum | Tue Feb 01 14:03:16 EST 2000 | Bill Schreiber
When cleaning water washable flux from PCBs using U/S, the final rinse can be with spray DI water for aesthetic purposes because the wash cycle is really just a long U/S rinse (no added chemistry). Fresh DI water should be continuously added to fresh
Electronics Forum | Sun Oct 10 17:50:00 EDT 1999 | JohnW
| | We've recently encountered this problem where one of our .050" pitch BGA's were reflowing at the wave thus causing shorts... The board was profiled with probes stuck to a QFP solder joint, an 0603, and one of the BGA joints. There was an almost
Electronics Forum | Thu Oct 07 23:48:02 EDT 1999 | JAX
| | | | What is the average pay that a SMT Programmer would get? The machines would be Fuji and Universal. | | | | This is going to open up a can of worms involving phrases relating to monkeys and peanuts. I have come across a spectrum of scales depe
Electronics Forum | Thu Sep 30 15:06:05 EDT 1999 | Dave F
| Guys & Gals, | | I am at present instigating a formal method of recording and tracking any "process" trials that we may wish to run, such as a new paste, different packaged device etc; | | I started with a simple form.....too simple, but now I th
Electronics Forum | Tue Sep 21 13:10:10 EDT 1999 | Dave F
| Dear All, | | In order to understand the soldering technologies in SMT, I'd like to understand why some cards are soldered and then cleaned, or only soldered whitout water cleaning nor "ultra sound" wavelength. | | I mean that I wonder why we use
Electronics Forum | Wed Sep 22 21:12:16 EDT 1999 | se
| | | | My stencil thickness is 6 mil and we got qfp's with fine pitch. | | | | how many percent should i reduce my stencil aperture using a 6 mil stencil for 0.5 mm pitch and 0.4 mm pitch ? | | | | | | | | thanks | | | | | | | We use 6 mil lasercu
Electronics Forum | Wed Sep 22 16:57:54 EDT 1999 | Tom B.
Does machine stop in middle of placement? Message Processing PCB is displayed? No Action other that Reboot remedy the problem? 1. Which version of Station Software are you using? Versions lower that 10 can cause this? What appears to happen on so
Electronics Forum | Sun Sep 26 14:15:29 EDT 1999 | jgodfrey
| Does machine stop in middle of placement? Message Processing PCB is displayed? No Action other that Reboot remedy the problem? | | 1. Which version of Station Software are you using? Versions lower that 10 can cause this? | | What appears to ha
Electronics Forum | Fri Sep 17 06:01:12 EDT 1999 | Earl Moon
| | We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a re
