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SMTnet Express August 22, 2013, Subscribers: 26219, Members: Companies: 13462, Users: 35081

Whisker Growth In Tin Alloys On Glass-Epoxy Laminate Studied By Scanning ION Microscopy and Energy-Dispersive X-Ray Spectroscopy

by A. Czerwinski, A. Skwarek, M. Pluska, J. Ratajczak, K. Witek; The Institute of Electron Technology (ITE)

Tin-rich solders are widely applied in the electronic industry in the majority of modern printed circuit boards (PCBs). Because the use of lead-tin solders has been banned in the European Union since 2006, the problem of the bridging of adjacent conductors due to tin whisker growth (limited before by the addition of Pb) has been reborn.

In this study tin alloys soldered on glass-epoxy laminate (typically used for PCBs) are considered. Scanning ion microscopy with Focused Ion Beam (FIB) system and energy-dispersive X-ray spectroscopy (EDXS) were used to determine correlations between spatial non-uniformities of the glass-epoxy laminate, the distribution of intermetallic compounds and whisker growth.

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Forum search results for related keywords: tin whiskers , tin solders, intermetallic compounds (IMCs)

productronica - Innovation all along the line

Nov. 12 - 15, 2013, Munich, Germany

Join the leading trade fair which show-cases the entire value chain in electronics production.

Register online!

U.S. Contact: fnovak@munich-tradefairs.com

MTS500 Condor Flying Probe Tester

Fixtureless design, maximum flexibility...

by: Digitaltest

S-930N Selective Flux Jetting Dispenser
S-930N Series Selective Flux Jetting Dispensers

High-speed jetting of thin film coatings...

by: Asymtek

ProntoPLACE SMT, Thru-hole Software
Unisoft ProntoPLACE SMT, Thru-hole Software

Be production ready in minutes not days...

by: Unisoft

SMT Nozzles
and Consumables

High quality replacement parts...

by: Count On Tools

Mx400 High Speed Pick & Place...

For wide part mix with higher production...

by: Apex FA / Mirae

SP700avi
Stencil Printer
SP700avi Inline Stencil Printer

Utilising the most advanced drive...

by: Speedprint

HYDRON® WS 325
PCB Cleaning Agent
HYDRON WS 325 Cleaning and Defluxing Agent

For cleaning water soluble flux residues...

by: ZESTRON

Mark5 Series -
Reflow System
The Mark III Reflow System

Up to 40% reduction in nitrogen consumption...

by: Heller

Complete Closure of Late Model SMT
and Thru Hole Facility

Ekra X4 Screen Printer, Juki KE-2060RL Placement System, Electrovert Omni 7 Reflow Oven and more...

August 26 - 27
auction by: X-Line Asset Management

Online Exchange Auction (58 lots)

Dage XD7500VR X-Ray, Mydata MY12 SMT Pick & Place, Yestech YTV-2050 AOI,Seica Flying Probe Tester, Siemens HF3 SMT Pick & Place and more...

August 27 - 29
auction by: Baja Bid

Fuji XPF-L
Placement System
Fuji XPF-L Placement System

IBE SMT Equipment

all marketplace listings

Crown Simplimatic
Reflow Exit Conveyor
Crown Simplimatic Reflow Exit Conveyor

PPM

all marketplace listings

MVP 850G 3D
AOI
MVP 850G 3D AOI

X-Line

all marketplace listings

Heller 1912EXL
Reflow Oven
Heller 1912EXL Reflow Oven

CE Exchange

all marketplace listings

IPC APEX India
August 27-29 | by: IPC

Workshops and a technical conference in addition to exhibits from electronics assembly equipment manufacturers, assembly services and design companies.

Cleaning, Testing and Reliability Workshop
- Free Online Webinar
September 10 | by: ZESTRON

A guide to best practices on PCB cleaning, failure mechanisms, solder paste challenges, surface analytics, PCB test techniques, and low cost solutions.

Jobs:

Business/Pricing Analyst

Austin, TX, USA | Nordson ASYMTEK

SMT Programmer/Lead

Franksville, WI, USA | BEI Electronics,LLC

Senior SMA Process Engineer

Lynchburg, VA, USA | AMTI Advanced Manufacturing

Resumes:

Customer Service Engineer

Suzhou, China

SMT Engineer

Chennai, India

SMT Test Ebgineer

Pune, India

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: Webinar: Conformal Coating In The Factory - August 29

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 APEX India - August 27 - 29

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

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