Electronics Forum | Sun Sep 08 18:06:30 EDT 2013 | davef
Protect the board: If solder mask protects the board, the level of protection is limited and inconsistent. If you want protection, you need the be thinking conformal coating. Selective ENIG: I believe the reason solderability protection, except mayb
Electronics Forum | Thu Jun 08 09:43:42 EDT 2017 | davef
You know the scary part about your mentioning a tread where I post something? Well. let's just say that 2007 was a long time ago. Anyhow, silver will dissolve into your solder and provide no barrier. Some people apply a silver flash plating over the
Electronics Forum | Tue Sep 07 06:24:07 EDT 1999 | Steve Cheung
We are changing over to a No-Clean paste soon and l was wondering how other people tackle the issue of stencil and PCB cleaning in high-volume production. The paste we are using is Cobar 325RX and its pretty sticky stuff let me tell you! Our proble
Electronics Forum | Thu Mar 19 12:13:16 EST 1998 | Justin Medernach
| Cpk's on top flight ovens (e.g., Conceptronics, Heller, Electrovert, Vitronics) vary wildly, from 1 to 2+, between different supplers. The suppliers don't seem to understand Cpk's. A supplier's rep whose oven has a Cpk of 1.0 told me: | 1. Cpk's
Electronics Forum | Thu Mar 19 12:37:15 EST 1998 | Earl Moon
| | Cpk's on top flight ovens (e.g., Conceptronics, Heller, Electrovert, Vitronics) vary wildly, from 1 to 2+, between different supplers. The suppliers don't seem to understand Cpk's. A supplier's rep whose oven has a Cpk of 1.0 told me: | | 1. C
Electronics Forum | Thu Apr 10 05:25:43 EDT 2003 | dst
Hi, My company is currently experiencing a high feild failure rate on a 100nF chip ceramic that we use in various applications across our product range. One of them being de-coupling which means we use millions of this device every month. The failu
Electronics Forum | Tue Oct 12 22:22:34 EDT 1999 | se
| Hi, | We are in the process of evaluate our solder paste,incoming inspection over the solder paste, stencil requirments: | | 1- Is anybody using/requiring 1000 Kcps or more on viscosity to your solder paste provider ? Why ?? | 2- Is anybody using
Electronics Forum | Mon Apr 26 16:06:32 EDT 1999 | Chrys Shea
Hey - remember the evaluation of VOC-Free fluxes that I promised a couple of months ago? well, I finally scrounged up the time to remove the propreitary (board name and number) info from the report. So it's ready. I posted it in the SMTnet library
Electronics Forum | Mon Apr 26 21:29:34 EDT 1999 | Dave F
| Hey - remember the evaluation of VOC-Free fluxes that I promised a couple of months ago? well, I finally scrounged up the time to remove the propreitary (board name and number) info from the report. So it's ready. I posted it in the SMTnet libra
Electronics Forum | Wed Aug 10 10:41:23 EDT 2005 | patrickbruneel
Bob, Great theory if you're selling SN100C, but I have to disagree that an alloy being 4�C off eutectic will cause cracks. When a solder joint exits the solder wave, there is an immediate drop in temperature of 100�C. so being off 4�C is irrelevant.
