Surface Mount Technology companies
Dec 14, 2012 | Rosa Croughwell and John McNeill, Worcester Polytechnic Institute
This paper examines the potential failure mechanisms that can damage modern lowvoltage CMOS devices and their relationship to electrical testing. Failure mechanisms such as electrostatic discharge (ESD), CMOS latch-up, and transistor gate oxide degradation can occur as a result of electrical over-voltage stress (EOS). In this paper, EOS due to electrical testing is examined and an experiment is conducted using pulsed voltage waveforms corresponding to conditions encountered during in-circuit electrical testing. Experimental results indicate a correlation between amplitude and duration of the pulse waveform and device degradation due to one or more of the failure mechanisms....
Jan 24, 2007 | Earl Moon
This article updates one I wrote for Printed Circuit Fabrication Magazine in December 1991. Actually, this article trashes that - and about time. I was much too kind then talking about how to control the HASL process....
Jan 10, 2007 | Earl Moon
As with all other F/A processes, PCB's occasionally need a little help from them. The following, just as the component process in Section previous, has been condensed from so many involvements over the past 35 years, I cannot remember - nor should I because they all could have been prevented with DFM/CE. However, the information presented, coupled with good DFM/CE and PCB process management provides an insight to the beast....
Dec 17, 2010 | The former Hyundai factory in Dunfermline, Scotland, dubbed locally as the ‘Hyundai White Elephant’ is set to be transformed into a centre for the renewable energy sector. Hyundai’s original plans to open a semi conductor facility never came to fruition, despite the £80 million spent on installing top of the range site utilities. The site has changed hands several times since Hyundai’s exit, firstly being sold to Motorola and subsequently to Freescale. Shepherd Offshore Group acquired the complete site in November 2010. In order to facilitate the new development the unused plant and equipment will be sold and the buildings demolished to make way for the state of the art renewable energy centre spanning the 150 acre site.
Mar 15, 2010 | The power meter features a rugged design, auto power-off, low-power consumption, a large LCD screen and superior source stability making it an ideal solution for field testing.
Mar 09, 2010 | June 8, 9, 10, 2010 Honeywell Deer Valley, Deer Valley (Phoenix), AZ
Jan 29, 2010 | used SMT import customs and shipment to china
Dec 14, 2009 | By Dr. Jennie Hwang
Nov 03, 2009 | Chalfont St. Giles, Buckinghamshire, UK, October 20th, 2009
Oct 03, 2009 | Kenosha, WI
Sep 08, 2009 | Rapid Response Strep A Tests
Aug 10, 2009 | Rapid Response® Drugs of Abuse Tests
Jul 17, 2009 | - Quantum CAD Selects Adeon’s CXInsight PLM Solution for Data collaboration