Electronics Forum | Wed Aug 19 08:00:55 EDT 1998 | Earl Moon
| Hi there, | I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In orde
Electronics Forum | Wed Apr 21 00:35:31 EDT 1999 | Scott Cook
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
Industry News | 2013-12-18 15:18:53.0
Isola Group had successfully transitioned the manufacturing of its low-loss, I-Speed material to Asia. The move was in response to an increased demand for I-Speed products. The cost benefits of manufacturing in Asia have enabled a price reduction of I-Speed for printed circuit board (PCB) fabricators located in the Asia-Pacific region.
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/RSS_determine-hole-size-for-plastic-peg-alignment-pins_topic720.xml
;Do you know if a large difference of the glass transition temperature or Tg value between the MiniDIMM socket and the PCB matter for reliable reflow soldering
| http://etasmt.com/cc?ID=te_news_bulletin,24964&url=_print
PCB enters a glass-transition phase that causes it to sag in the center. The higher the temperature, the greater the sag and
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