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Solder Phase Coarsening, Fundamentals, Preparation, Measurement and Prediction

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Solder Phase Coarsening, Fundamentals, Preparation, Measurement and Prediction

Abstract. Thermal fatigue has been one of the most serious problems for solder joint reliability. Thermo-mechanical fatigue failure is considered to be closely related to micro-structural coarsening (grain/phase growth). Factors that influence the phase growth are studied and measurement methods are discussed, including the preparation of the eutectic solder sample for phase size measurement. Three categories of models used to predict grain growth in polycrystalline materials are presented. Finally, phase growth in solder during high temperature aging and temperature cycling and its use as a damage correlation factor are discussed.

Credit / Source:
Crina Rauta, Dr. Abhijit Dasgupta, Dr. Craig Hillman DfR Solutions

Read Article...

Featured auction

Electronics Manufacturing Exchange #103

GoIndustry DoveBid

Sale Type: Online Auction

Starts: Tue, May 12, 2009

Ends: Wed, May 13, 2009

Location of Assets: USA

Online Auction of PCB Manufacturing, SMT, Semiconductor Fabrication, and Test & Measurement Equipment Auction

Major Electronic Manufacturing Equipment Auction of Quality Hard Drive Manufacturing Equipment, Semiconductor Tools, (30+) Ebara Vacuum Pumps, Pick & Place Machines, Auto Wire Bonders, Optical Inspection & Infrared Camera Systems, Spray Coaters, Dual Rail


Featured New Products

MV-7 Series

In-Line AOI Machine

Designed to automatically inspect for manufacturing defects both pre and post reflow. In-line capability for increased throughput... »»

Offered by: Mirtec


Pb-Free Reflow System

Forced Hot-Air Convection Systems for Medium-High Volume Pb-Free Reflow. 5 Independent Upper and Lower Heat Zones...  »»

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AOI Software

Programs most popular machines, converts CAD or GERBER files to finished AOI files... »»

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Heller: The Mark III Reflow System...

Finetech: FINEPLACER� CRS Rework & Repair Equipment...

PROMATION: PCB Debris Removal System...

Equipment mart

Fuji CP742E
Placement System


Agilent 3070...
Test Equipment

Lewis & Clark

Fuji XP-143E


Camalot 3700
Adhesive Dispenser


More Equipment Listings:

Component Counters, Counting Scales, Lead Forming Machines, Pallets and Workboard Holders...

NEA: Used Assembly Equipment

Mydata MY9 - Pick and Place Equipment

Visit Used Equipment Mart... Post Your Equipment Listing Free...


Delamination in solder mask and first layer copper trace

Posted by kareal

In my project of flip chip PGA production , I found serious delamination in interface of solder mask and first layer copper trace of substrate after UHAST 96hrs( 130C, 85%RH) reliability test... »»

Spray Fluxer Problem

Posted by xinxi

I have a problem in starting up/initialising the wave machine due to an error stating "spray fluxer 1 mistake". It has been some time since we last used the machine, I doubt is this what causing the fault?... »»

Debridging tool

Posted by George

Just wondering if somebody is using the debridging tool (Vitronics) on the wave solder machine succesfully with SN100C. After testing for a while, my conclusion is to not even try....does not work...but maybe I am wrong... »»

More Forum Topics:

IP2 placing parts shifted after servo fixed?...

Recommendations on Solder Scavenging Systems...

Swine Flu...

Visit the Forum... Have a Question? Ask for Free...


PCB Design Excellence

Seminar/Course | Premier EDA Solutions Ltd.

Tue, May 19, 2009 | Stone House Hotel, Stone, UK

A two-day course providing an intermediate level of training in PCB design. Ideal for electronics engineering graduates, electronics technicians and draughtsmen wishing to enhance their skills... »»

Reliability of Reworked Lead-free Assemblies

Webinar | CALCE

Tue, May 12, 2009 | Online

This seminar will present strategies for obsolesence management. The Mitigation of Obsolescence Cost Analysis (MOCA) software will be presented with its use in assessing obsolesence stratigies... »»

BGA Componet Rework & Profiling

Trade Show/Exhibition | Precision PCB Services, Inc

Mon, May 11, 2009 |Oroville, CA, USA

This 2-day course is designed for students that require the hands-on skill and knowledge to reliably remove and install many types of the most complex BGA components... »»

More Events:

Six Sigma Green Belt Training - Control the Process...

2009 Suzhou SMT/PCB Show

Library Management with Altium Designer...

Visit the Event Calendar... Add Your Event Now...

Career Center


Electronics Manufacturing Engineer

RIO Group

Pittsburgh, PA, USA

The company needs help with manufacturing processes and specifically would like someone with PCB troubleshooting experience, as well as some In-Circuit Test (ICT) experience... »»

SMT Process Engineering Specialist

Research In Motion

Waterloo, Ontario, Canada

The successful candidate will be aligned with specific new product introductions and will play a pivotal technical role in the design for manufacturability... »»

SMT Maintenance Engineer

Coast Personnel Services

Santa Clara, CA, USA

Manage and perform preventative maintenance activities of equipment. Experience in DEK, Fuji CP4 and 6, Heller Reflow and Electrovert soldering machine...»»

More Jobs:


SMT Process Engineer...

Design Engineer...

Post Job Listing for Free...


Experienced Electronics Manufacutring Engineer

Desired Field: Engineering, Maintenance

Wayland, MI, USA

...Able and experienced in all aspects related to implementing new jobs and keeping running jobs up to date and current including: Screen ordering... »»

SMT Consultant, Process Development

Desired Field: Research and Development

Boise, ID, USA

Over 20 years experience in SMT Process Development for large Contract Manufacturer. Specialist in Stencil Printing, Component Placement, Dispense... »»

Director Training and Development

Desired Field: Human Resources, Maintenance

Texas, USA

Over 17 years in the training and development industry. I have a track record of successes in designing strategic programs...»»

More Resumes:

Failure Analysis engineer, Advanced process, PhD...

PCB Design Engineer...

SMT Equipment Technician...

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Visit Career Center...

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 for SMT Processes and Six Sigma Green Belt


Next Event: Silicon Valley Table Top Show


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 Executive Webcast Series: Pricing in a Recession: Theory and Practice

SMTnet Express
May 08, 2009

Subscribers: 25644

SMTnet Members:

Companies: 7605

Users: 26662

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