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SMTnet Express, November 17, 2016, Subscribers: 26,573, Companies: 15,019, Users: 41,420

Technical Library

How Mitigation Techniques Affect Reliability Results for BGAs

Greg Caswell, Melissa Keener; DfR Solutions

Since 2006 RoHS requirements have required lead free solders to take the place of tin-lead solders in electronics. The problem is that in some environments the lead free solders are less reliable than the older tin-lead solders. One of the ways to solve this problem is to corner stake, edge bond or underfill the components. When considering what mitigation technique and material to use, the operating conditions must be characterized. The temperature range is important when selecting a material to use since the glass transition temperature (Tg) and coefficient of thermal expansion (CTE) are important properties. If improperly chosen, the mitigation material can cause more failures than an unmitigated component.

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Forum search results for related keywords: mitigation, lead-free solder, solder joint failure, BGA.

SMT / PCB Products

PCB ASSEMBLY EQUIPMENT

Pick & Place

Count On Tools

Reflow

1ClickSMT

Printing

Europlacer

Reflow

KIC

Printing

Speedprint

Dispensing

GPD Global

Reflow

Heller

CLEANING EQUIPMENT & MATERIALS

Cleaning

ZESTRON

Cleaning

Kyzen

TEST & INSPECTION EQUIPMENT

Inspection

Mirtec

Inspection

VJ Electronix

Inspection

Glenbrook Tech.

REWORK, REPAIR & HAND ASSEMBLY EQUIPMENT

Hand Assembly

Virtual Industries

Rework

Metcal

SOFTWARE

Software

Unisoft

SMT / PCB Equipment Auctions

Late Model SMT and Test Equipment From OEM Manufacturer

Nov. 30 - Dec. 1 | X-Line Asset Management

High Value EMV Test & Measurement Equipment

Closing: Dec. 1 | Goindustry Dovebid

Electronic Equipment Mart

Europlacer iiNeo

Pick and Place Equipment/Feeders

X-Line Asset Management

Heller 1707-EXL Oven

Reflow Ovens

IBE SMT Equipment

Universal Instruments GSM 2

Flexible Mounters

ECM Equipment Sales, Inc.

Glenbrook RTX-113 X-Ray Inspection

Inspection Equipment

Capital Equipment Exchange

PCB Conveyors

Conveyors

JMW Enterprises

Phoenix Analyser 160

X-Ray Equipment

Recon Inc

Events Calendar

LED Assembly, Reliability & Testing Symposium

Conference | December 1 | SMTA

Printed Circuit & IPC APEX South China Fair 2016

Trade Show/Exhibition, Conference | December 7 - 9 | IPC

NEPCON JAPAN

Trade Show/Exhibition, Conference | January 18 - 20 | Reed Exhibitions

Training Courses

Find training training courses in your area for IPC certification, PCB assembly, rework, inspection and other electronics manufacturing processes »

Career Center

Regional Sales Manager for Latin America

Guadalajara or US Border, Mexico

PACE Worldwide

Junior .NET Developer

Panningen, Netherlands

XYZTEC bv

Field Service Engineer

Suwanee, GA, USA

ASM Assembly Systems GmbH & Co. KG

Industry Associations Events

SMTA

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

Event: LED Assembly, Reliability & Testing Exhibition - Nov. 29 - Dec. 2

IPC

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

Event: IMPACT Europe 2016 - November 29

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

SMTnet.com, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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SMT Inventory Offered Two Ways: 'As Is' or 'Production Ready' - CE Exchange

Buy an MX-5210 roldering and rework station, Get FREE tweezer upgrade kit - Offer ends Dec. 31, 2016

VisionPro Series Bench Top 3D SPI - the ultimate in flexibility

PCB Cleaning products - Zestron

Why Use Plasma Treatment Prior To Conformal Coating. Download the 'The Effects of Plasma Treatment Prior to Conformal Coating' White Paper.

Quality Pre-Owned SMT Eequipment - Robo-Tek

NEW Essemtec Fox can have up to 180 feeder lanes, needs only 1sqm of floor space and can accept PCB's of up to 406 x 305 mm.

HANDY series Automatic soldering robots - 1 Click SMT

Soldertools.net - Rework Tools

HELLER - Choose an Oven for Your Reflow Needs

KIC - Making Reflow Ovens Smarter

MIRTEC MV 6 OMNI High-Speed / High-Performance 3D AOI

Used SMT Equipment - IBE

Custom SMT Nozzles and Tools - Count on Tools

Scienscope - Complete PCB Inspection Solutions

Speedprint SP700avi inline SMT screen printer

Software for PCB Manufacturing - Unisoft

Vacuum Tweezers - pick up small components with ease

SMT, PTH, AOI & Test Equipment

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