SMT, PCB Electronic Industry News

Express Newsletter

The SMTnet Express newsletter is sent weekly to over 25,000 subscribers.


  • SMTnet
  • »
  • Express Newsletter

Effects of Tin and Copper Nanotexturization on Tin Whisker Formation

SMTnet Express August 17, 2012, Subscribers: 25395, Members: Companies: 8952, Users: 33485

Technical Library

Effects of Tin and Copper Nanotexturization on Tin Whisker Formation

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

by: David M. Lee, Lesly A. Piñol, PhD; Johns Hopkins Applied Physics Laboratory

The physical mechanisms behind tin whisker formation in pure tin (Sn) films continue to elude the microelectronics industry. Despite modest advances in whisker mitigation techniques (i.e., barrier metal underlayers, substrate/film annealing, etc.) and encapsulation, ways to fundamentally prevent whiskers from forming remain unknown. It has been said that tin plating thicknesses of <0.5 um or >20um are "whisker inhibiting"[3,6] (...)

Our work examines the effect of adding grain refiners during tin electroplating, with particular focus on the �as-deposited� film morphology and the associated incidence of whiskering.

read article »

Related Forum threads:

Propensity of Immersion Tin surface finish fo whiskers - Why even consider immersion tin if it whiskers?...

RoHS Part Conversion - I have a leaded legacy board that I continue to make...

Is just me, or too many "solder issues" observed lately? - Could be a ~90% components "backwards/compatible"...

SMT / PCB Products

KIC MVP
Profile Fixture
KIC MVP

Spot checking your profile without sacrificing a PCB...

Offered by: KIC

Typhoon - Inline Cleaning / Defluxing System
Typhoon - High Performance Inline Cleaning/Defluxing System

Industry's newest, most advanced cleaning / defluxing system...

Offered by: Aqueous Tech.

iineo II
Pick & Place System
iineo II Pick & Place

Extremely high feeder count, largest industry board size...

Offered by: Europlacer

Valor MSS Material Traceability Software
Valor? MSS Material Traceability Software

Avoid costly recalls with full process traceability...

by: Mentor Graphics

SP700avi
Inline Stencil Printer
SP700avi Inline Stencil Printer

Utilising the most advanced drive control technology...

Offered by: Speedprint

ProntoTEST-FIXTURE
Software

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

Offered by: Unisoft

SMT / PCB Equipment Auctions

High End SMT Assembly Equipment

By Order of Continental Automotive located in Seguin, Texas

Aug 21-23 | Cardinal Auctions

Transform Solar

Tremendous Offering of 2010 & 2011 SMT & Semiconductor Equipment

Aug 22-23 | Silicon Valley Disposition

Surplus SMT and TH Machinery

Complete 30,000 SF Through Hole and SMT Facility

Sep 11-12 | The Branford Group

Electronic Equipment Mart

Siemens HF3
Chipshooter
Siemens HF3 Chipshooter

kuda.co.led

all marketplace listings

Camalot 5000
Adhesive Dispenser
Camalot 5000 Adhesive Dispenser

PPM

all marketplace listings

Mydata MY12
Placement Machine
Mydata MY12 Placement Machine

IBE SMT Equipment

all marketplace listings

Universal Instr. Genesis
Pick and Place...
Universal Instruments Genesis GX-11 Pick and Place

X-Line

all marketplace listings

Events Calendar

NEPCON South China 2012 | August 28, Shenzhen, China | Reed Exhibitions

China Guangzhou International PCB & SMT Technology Exhibition | August 21 | Guangzhou Grandeur Exhibition...

IPC Midwest Conference & Exhibition | August 22, Schaumburg, IL, USA | IPC

Career Center

Jobs:

SMT Engineer

Lewisburg, TN, USA | CalsonicKansei North America

Quality Assurance & Control Manager

Colorado Springs, CO, USA | Photo Stencil LLC

SMT Operator/AOI Operator

Phoenix, AZ, USA | Triad Electronic Technologies

Resumes:

Buyer/Planner

Lancaster, CA, USA

Electronic Process Engineer

Brampton, Orlando, Canada

SMT equipment eng

Seoul, South Korea

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

Next Event: SMTA Webtorial Counterfeit Electronics - Risks and Mitigation - August 14-21


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

Next Event: EMS Leadership Training and Certification Exam in conjunction with IPC Midwest� - August 18 - 19


Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

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

Unsubscribe. | Contact customer service

Capital Equipment Exchange - Used PCB Assembly Equipment

Late Model Surface Mount Technology & Semiconductor Equipment Auction

Electronic Manufacturing Exchange #158 Auction - North America

SP700avi inline stencil printer

Capital Equipment Exchange - Used PCB Assembly Equipment

Expert 10.6 Rework Station  - Hybrid or IR and convection

Mentor Traceability Turns Electronic Manufacturing Problems into Revenue Solutions

Top 10 Reasons You Should Consider Europlacer SMT Equipment

Adopt - Europe's No. 1 Source for SMT Equipment

Capital Equipment Exchange - Used PCB Assembly Equipment

PCB Equipment Auctions

SMTnet - Electronic Industry Hub

News Forums SMT Equipment Company Directory

Calendar Career Center Advertising About FREE Company Listing!

  • SMTnet
  • »
  • Express Newsletter
2021  IPC Training Schedule

 Reflow System