Electronics Manufacturing Technical Articles

Electronics Manufacturing Technical Articles

Papers and articles related to SMT, PCB & EMS industry.


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696 SMT / PCB Technical Articles

RoHS: Five Years Later

Dec 01, 2011 | Dr Ronald C. Lasky

Are electronics any “greener” than before RoHS? It is a fair question to ask. With the advent of RoHS on July 1, 2006, and more recently REACH, one might be inclined to answer that it is greener than it was. We will take a look at this question in several...

Publisher: Indium Corporation

Indium Corporation

Solder pastes, solder preforms, solder spheres, soldering fluxes, electrically-conductive adhesives. All alloys: tin-lead, lead-free, indium alloys, and more.

Utica, New York, United States

Manufacturer of Assembly Material, Soldering

New Methods of Testing PCB Traces Capacity and Fusing

Nov 25, 2011 | Norocel Codreanu, Radu Bunea, Paul Svasta

The article presents virtual and real investigations related to current capacity and fusing of PCB traces in high power applications and is based on a scientific paper delivered by authors at SIITME 2010 in Romania. The reason of performing the research a...

Publisher: "Politehnica" University of Bucharest, Center for Technological Electronics and Interconnection Techniques, UPB-CETTI

"Politehnica" University of Bucharest, Center for Technological Electronics and Interconnection Techniques, UPB-CETTI

CETTI offers a substantial support in electronic packaging activities for innovative SMEs, and sustains training for continuing education of the human resource involved in electronics industry.

Bucharest, Romania

Training / Education

Using Flexible Circuits as an Electronic Interconnection... Do's and Don'ts

Nov 16, 2011 | Dave Becker

Flexible Circuits are proven, reliable interconnect solutions for many of today's electronic packages. This article gives some general guidelines in terms of "dos" and "don'ts" that will help the engineer or designer make better decisions when using flex...

Publisher: All Flex Flexible Circuits, LLC

All Flex Flexible Circuits, LLC

Flexible circuit manufacturing and assembly. 20 years experience.

Northfield, Minnesota, United States

Manufacturer of Assembly Material, Manufacturer of Assembled PCBs, Contract Manufacturer

PCB Dynamic Coplanarity At Elevated Temperatures

Nov 10, 2011 | John Davignon, Ken Chiavone, Jiahui Pan, James Henzi, David Mendez, Ron Kulterman

With the advent of larger packages and higher densities/pitch the Industry has been concerned with the coplanarity of both the substrate package and the PCB motherboard. The iNEMI PCB Coplanarity WG generated a snapshot in time of the dynamic coplanarity ...

Publisher: iNEMI (International Electronics Manufacturing Initiative)

iNEMI (International Electronics Manufacturing Initiative)

iNEMI is an industry-led consortium focused on identifying and closing technology gaps, which includes the development and integration of the electronics industry supply infrastructure.

Herndon, Virginia, United States

A Novel Local Search Integer-Programming-Based Heuristic for PCB Assembly on Collect-and-Place Machines

Nov 03, 2011 | Anupam Seth, Diego Klabjan, Placid M. Ferreira

This paper presents the development of a novel vehicle-routing-based algorithm for optimizing component pick-up and placement on a collect-and-place type machine in printed circuit board manufacturing. We present a two-phase heuristic that produces soluti...

Publisher: Mechanical Science and Engineering at UIUC

Mechanical Science and Engineering at UIUC

The Department of Mechanical Science and Engineering offers top-ranked degree programs in engineering mechanics, mechanical engineering, and theoretical and applied mechanics.

Urbana, Illinois, United States

Training / Education

Manufacturability & Reliability Challenges with Leadless Near Chip Scale (LNCSP) Packages in Pb-Free Processes

Oct 27, 2011 | Cheryl Tulkoff, Greg Caswell

Leadless, near chip scale packages (LNCSP) like the quad flat pack no lead (QFN) are the fastest growing package types in the electronics industry today. Early LNCSPs were fairly straightforward components with small overall dimensions, a single outer row...

Publisher: DfR Solutions

DfR Solutions

DfR Solutions has world-renowned expertise in applying the science of Reliability Physics to electrical and electronics technologies, and is a leading provider of quality, reliability, and durability (QRD) research and consulting for the electronics industry.

College Park, Maryland, United States

Service Provider

Modelling of Thermal Stresses in Printed Circuit Boards

Oct 20, 2011 | Oldŕich Šuba, Libuše Sýkorová, Štépán Šanda, Michal Stanék

Results of FEM modelling of thermal stress analysis in printed circuit boards are given in the article. It is shown that thermal stress alone is not solely caused by differences in coefficients of thermal expansion of individual layers. The emergence of thermal stress is subject to both the layered structure of the wall and given boundary conditions, as well as the existence of a temperature gradient in the direction normal to the surface of the wall. A practical application focuses on the issue of recycling of PCB with the effort to achieve separation of layers due to thermal stress. Role modelling of thermal stress in this area lies in predicting the possibility of separation, depending on the type of thermal stress and material parameters....

Publisher: Tomas Bata University

Tomas Bata University

TBU follows the forty-year tradition of the Faculty of Technology, which was founded in Zlín in 1969 and since than has educated hundreds of highly-qualified professionals.

Zlin, Czech Republic

Training / Education

Are Separate Solder Flip-Chip Bonders Still Required?

Oct 13, 2011 | Eric Klaver, Senior Product Manager, Assembléon. Patrick Huberts, Product Manager Semicon Market.

Increasing miniaturization is now encouraging manufacturers of handheld devices to stack bare dies or packages. As the process of manufacturing modules requires placing both passives and (stacked) bare dies, these two types of placement are merging very quickly into a single platform. That raises the question of whether SMT equipment will take over from traditional die bonders....

Publisher: Assembléon

Assembléon

Assembleon manufactures a range of Surface Mount Technology (SMT) placement equipment, Pick & Place Machines and provides related services.

LA VELDHOVEN, Netherlands

Manufacturer of Assembly Equipment

Development of a Design & Manufacturing Environment for Reliable and Cost- Effective PCB Embedding Technology

Oct 06, 2011 | M. Brizoux, A. Grivon, W. C. Maia Filho; Thales Corporate Services. J. Stahr, M. Morianz; AT&S. Hemant Shah, Ed Hickey; Cadence Design Systems Inc.

The desire to have more functionality into increasingly smaller size end products has been pushing the PCB and IC Packaging industry towards High Density Interconnect (HDI) and 3D Packaging (stacked dies, embedded packaged components). Many companies in the high-end consumer electronics market place have been embedding passive chip components on inner PCB and IC Packages for a few years now. However, embedding packaged components on inner layers has remained elusive for the broader market due to lack of proper design tools and high cost of embedding components on inner layers (...)

This paper will highlight several key industrialization aspects addressed in the frame of the European funded FP7 HERMES* project to build a manufacturing environment for products with embedded components. The program entered its third year and is now dealing with the manufacturing of functional demonstrators as an introduction to industrialization....

Publisher: Cadence Design Systems, Inc.

Cadence Design Systems, Inc.

World's leading EDA company.

San Jose, California, United States

Design

Criminal Prosecution - Who can be held liable for the sale of counterfeit parts?

Sep 26, 2011 | Kristal Snider, Vice President; ERAI Inc.

On September 14, 2010, the late Shannon Wren, owner of VisionTech Components ("VisionTech"), and Stephanie McCloskey, VisionTech's Administrative Manager, were arrested during the execution of search and seizure warrants issued against the pair by the United States government after evidence connected them to the sale of counterfeit parts to the U.S. Navy, defense contractors and others. A ten-count indictment charged McCloskey with conspiracy, aiding and abetting in violation of Title 18 United States Code, Sections 371 and 2; trafficking in counterfeit goods, in violation of Title 18 United States Code, Section 2320; and mail fraud, in violation of Title 18 United States Code, Section 1341. McCloskey pled guilty to conspiracy and aiding and abetting for her role in the scheme....

Publisher: ERAI Inc.

ERAI Inc.

ERAI is an information services organization that monitors, investigates and reports issues that are affecting the electronics supply chain.

Naples, Florida, United States

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