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Regular Columnist Joe Fjelstad

Joseph Fjelstad is a 38-year veteran of the electronics industry and president and founder of Verdant Electronics. He is an author and innovator in electronics interconnection technology with numerous books, papers and articles and more than 220 issued or pending US and international patents to his credit. His most recent book, the 3rd edition of Flexible Circuit Technology, is available in soft copy for free at www.FlexibleCircuitTechnology.com. Email joe@verdantelectronics.com



Synergy, the Occam process and twisted wire interconnect PDF Print E-mail
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Written by Joe Fjelstad   
Tuesday, 09 February 2010

The term/concept of synergy seems very apt when applied to the interaction of the Occam process solderless assembly concept in combination with a unique PCB interconnection technology called twisted wire interconnect or TWI.

 
IC Packaging Technology Retrospective – Part 4 PDF Print E-mail
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Written by Joe Fjelstad   
Friday, 03 July 2009

The electronics industry’s mantra has for many years been "Smaller, Faster, Lighter, Better and Cheaper."

 
IC Packaging Technology Retrospective – Part 3 PDF Print E-mail
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Written by Joe Fjelstad   
Monday, 08 June 2009

Part 2 of this retrospective, seen in last month’s issue of Global SMT and Packaging, took a bit of a detour from the topic to explore the reasoning and the impact of the ‘80% Rule.’

 
IC packaging technology retrospective—part 2 PDF Print E-mail
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Written by Joe Fjelstad   
Friday, 08 May 2009

Part one left off noting that surface mount brought with it significant advantages to IC packaging but also that there was need to provide guidance for future development. The result of that effort is something that is now known as the ‘80% rule.’

 
PiP, PoP and PuP—Package with package construction options PDF Print E-mail
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Written by PiP, PoP and PuP—Package with package construction options   
Monday, 06 April 2009

Since the beginning, all IC packages have been designed to perform the basic tasks of interconnecting and protecting the semiconductor die and making it useful for interconnection at the next level.

 
IC packaging technology retrospective—part 1 PDF Print E-mail
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Written by Joe Fjelstad   
Monday, 02 March 2009

All IC packaging technology structures since the invention of the integrated circuit itself have been tasked to perform, at a minimum, the simple and fundamental tasks of interconnecting and protecting the semiconductor die and making it useful for interconnection at the next level.

 
Microelectronics Assembly and Packaging (MAP) workshop 2008 review PDF Print E-mail
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Written by Joe Fjelstad   
Monday, 09 February 2009

The 8th International workshop on microelectronics assembly and packaging technologies was held in late November of last year and continues to be one of the best–kept open secrets of the IC packaging industry.

 
A visit to CERN (and the impressive electronics R&D center hidden within) PDF Print E-mail
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Written by Joe Fjelstad   
Friday, 09 January 2009


In October of this year, I had the privilege to visit CERN, the European Organization for Nuclear Research.

 
HDI Handbook review PDF Print E-mail
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Written by Joe Fjelstad   
Wednesday, 10 December 2008

Just–released high density interconnection ‘bible’ provides valuable advice and technical guidance for the future.

 
Sustainable manufacturing for electronics—nice idea or moral imperative? PDF Print E-mail
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Written by Joe Fjelstad   
Tuesday, 18 November 2008

The electronics industry has, over the course of the last half century, transformed the world in a way that only science fiction writers could have imagined when the industry was still in its infancy.

 
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