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SMTnet Express March 21, 2013, Subscribers: 26266, Members: Companies: 13317, Users: 34462

Technical Library

Low Cycle Fatigue Behaviour of Multi-joint Sample in Mechanical Testing

by: C.P. Hunt, O. Thomas, D. Di Maio, E. Kamara, H. Lu; National Physical Laboratory, University of Greenwich

This paper explores the behaviour of a copper test vehicle with multiple reflowed solder joints, which has direct relevance to ball grid arrays (BGA) and high density interconnect structures. The paper explores the relative stress conditions on the distributed joints and the sensitivity to ball joint shape. The joints were exposed to isothermal fatigue, which was produced by a mechanical load that induced a cyclic shear stress across all the joints.

First published in the 2012 IPC APEX EXPO technical conference proceedings.

read article »

Forum search results for related keywords: solder joint, multiple reflow, ball grid array, failure analysis

SMT / PCB Products

MS-11 Series
In-Line AOI Machine
MS-11 Series AOI

High Speed Precision In-Line SPI System...

by: Mirtec Get Your Power Membership

PCB Cleaning Agent
HYDRON WS 325 Cleaning and Defluxing Agent

For cleaning water soluble flux residues...


Stencil Wipes

The best in class stencil treatment technology...

by: Aculon

SMT Nozzles
and Consumables
Micro Nozzle

High quality replacement parts...

by: Count On Tools

LF-4300 & 4300
Solder Pastes
SP700avi Inline Stencil Printer

Is there anything these solder pastes can't do?


ProntoTEST-FIXTURE Software

Any CAD/CAE to any ATE... Download Trial

by: Unisoft

EXCEN High Speed
Modular Mounter
EXCEN High Speed Modular Mounter

World's highest area productivity...


Mark5 Series -
Reflow System
The Mark III Reflow System

Up to 40% reduction in nitrogen consumption...

by: Heller

SMT / PCB Equipment Auctions

Diversified Technology -
SMT Assembly Equipment (285 lots)

Baja Bid - SMT Equipment Auctions

March 25 - 28
auction by: Baja Bid

High Quality SMT Equipment
& Feeders (970)

GoIndustry DoveBid - SMT Equipment Auctions

March 24 - 27
auction by: GoIndustry DoveBid

Electronic Equipment Mart

Universal Genesis GC60
Universal Genesis GC60 Chipshooter


all marketplace listings

Heller 1700EXL
Reflow Oven
Heller 1700EXL Reflow Oven


all marketplace listings

Air-Vac DRS22
Rework Station
Air-Vac DRS22 Rework Station

JMW Enterprises

all marketplace listings

MPM Accela
Screen Printer
MPM Accela Screen Printer


all marketplace listings

Events Calendar

Electronics New England
April 10 - 11

Southeast Design-2-Part Show
April 3 - 4

Internet Marketing tip of the week

As many of you know, over the years, Google's algorithm has placed a lotof emphasis on incoming links. The idea was that a website with many incoming links must be 'important'.

Google's newest updates emphasize that QUALITY links are much better than QUANTITY of links.

Google likes links from high authority websites and webpages that have relevant & related topics. If your website is in the SMT industry, links from SMTnet and other industry specific sites will help your rankings.

If you are buying links from link farms, you may want to read this article.

If you would like to learn about generating quality links from a high authority industry specific website and from pages that are relevant to what you sell, please read about our 'targeted ads' or please feel free to contact us.

Roland Girouard, Managing Director, SMTnet

The marketing team provides internet marketing consulting services for the SMT Industry.

Contact us for more information »

Career Center


Product Manager

San Diego, CA, USA | Nordson ASYMTEK

SMT Technician-Engineer


Automated Equipment Operator - Full Time

Indianapolis, IN, USA | Carson Manufacturing


SMT Production Engineer

Muzzaffarnagar, India

Field Service Engineer

Tucson, Arizona Texas, Florida, Georgia, Alabama, USA

12 Years experience in Equipment, Manufacturing and Technical Support

Open to be relocated

Industry Associations Events


SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies. Membership Info | SMTA Certification | Bookstore

Next Event: Webtorial: Improving SMT Stencil Printing Yields - April 11 & 18


IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly. Membership Info | Training & Certification Programs | Standards & Publications - Online Store

Next Event: IPC/FED Conference on Embedded Components - June 4 - 5

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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Used PCB Assembly Equipment - CE Exchange

NextJet Fluid Dispensing - Asymtek

Aquanox A4638 water soluble flux cleaner - Kyzen

Used SMT Equipment - IBE

SP700avi inline stencil printer from Speedprint

High Quality SMT Equipment & Feeders Auction

Aquanox A4638 water soluble flux cleaner - Kyzen

FactoryLofix manufacturing software suite - Aegis

ii-Feed tape feeding solution for Europlacer machines

Used PCB Assembly Equipment - PPM

SMT Solder Products - Amtech

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