SMT, PCB Electronic Industry News

Express Newsletter

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

  • SMTnet
  • »
  • Express Newsletter

Tin Whiskering on PCBA Capacitors in Storage (Inside ESD Bag, Inside a Sealed Cardboard Box)

Tin Whiskering on PCBA Capacitors in Storage (Inside ESD Bag, Inside a Sealed Cardboard Box)

Image: Capacitors with tin whiskers growing on surface of tin platingThe tin whisker failures investigated in this paper were found on functional RoHS-compliant hardware. The samples were not conformal coated. This paper will document the conditions associated with the whisker formation under the following conditions; tin plated components, RoHS-compliant assembly, stored in an ESD bag (not sealed), placed inside a box (taped shut) with power from a 3.3 volt battery on components that are in direct contact with the ESD bag. We will address the issue of microenvironments responsible for the formation of tin whiskers.

Read Article...


Terry Munson


Foresite Inc.

Visit the Technical Library... Submit Your Technical Paper...

Featured New Products


PCB and Stencil Cleaner

PCB and Stencil Cleaner

Designed with a revolutionary inhibition technology to be effective on the toughest soils while protecting even the most sensitive parts... »»

Offered by: Kyzen


7722FV Benchtop Pick-and-Place

Benchtop Pick-and-Place

Fully-Automatic system with flying and bottom vision! Handles 0402s, CSPs, BGAs, and even QFPs less than 20 mil... Right Out-of-the-Box... »»

Offered by: Manncorp


AOI Software

Used to quickly program AOI machines and X-RAY equipment. Programs most popular machines... »»

Download Trial

Offered by: Unisoft

Featured auction

X-Line Electronic Equipment Auctions

Jabil #23 - Penang Malaysia

Online Auctions | X-Line Asset Management

Wed, January 19 | Location of Assets: Penang, Malaysia

Surplus Equipment From Penang Malaysia...»»

Visit the Equipment Auctions Calendar...

For Sale Online

PCB Repair Kit

PCB Repair Kit

The BEST PCB Repair Kits are designed to meet the quality of original trace, pad, and plated thru-hole assemblies. These kits give you the tools you need for fast repair and modification of lands, traces, contact fingers, SMT pads, plated hole connections, and PCB base board material.


Electronic Equipment Mart

Universal Instruments GSM2
Pick and Place

Universal Instruments GSM2


all marketplace listings

Camalot 1818
Adhesive Dispenser

Camalot 1818 Adhesive Dispenser


all marketplace listings

Heller 1700EXL
Reflow Oven

Heller 1700EXL Reflow Oven


all marketplace listings

DEK Horizon
Screen Printer

DEK Horizon Screen Printer


all marketplace listings

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


Conveyor Angle - Wave Soldering | Posted by vijai

Can you please suggest, Optimal Conveyor Angle for better performance of Wave Soldering Process.... »»

Mirtec programming discussion | Posted by methos1979

I have worked with the Mirtec MV2 and 3 for several years. I did perform some evaluation of the red/blue filters. We found it to be usefull for some specialty solder inspections but we found it most usefull for solder inspection of plated test points... »»

BGA Reflow | Posted by RIPAL

We are having difficulty in reflowing BGA wiht ROHS process on double sided board. We have tried profiling un populated board and profile is meeting upper spec of solder paste... »»

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


Internepcon Japan

Conference, Trade Show/Exhibition | Wed, Jan. 19 | Sponsored by: Reed Exhibitions

World's leading electronics manufacturing events for the design, fabrication, assembly, packaging and testing of printed circuits and electronic assemblies... »»

Soldering 101 Training

Seminar/Course | Thu, Jan. 20 | Sponsored by: BEST Inc

Soldering 101 provides beginning soldering students or those new to the electronics industry with knowledge and hands on skills... »»

Interactive PCB Inspection Lab

Seminar/Course | Thu, Feb. 10 | Sponsored by: EPTAC

This is a 1-day course utilizing, lectures, visual acuity exercises, and physical assemblies to provide the students with an experience in visually inspecting printed circuit assemblies... »»

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

Career Center


SMT Maintenance Technician

Variosystems, Inc.

Southlake, TX, USA

Troubleshoot & Maintain: Siemens (Siplace) placement machines, JOT, MPM... »»

Quality Engineer

NBS Inc.

Santa Clara, CA, USA

Identify weaknesses in processes, procedures, work instructions, determine opportunities for improvement... »»

SMT Technician

Greene Resources

Durham, NC, USA

Must possess knowledge of components and commonly used concepts, practices and procedures... »»

More Jobs:

Post Job Listing for Free...


Debug Technician

Desired Field: Production, Engineering

Leominster, MA, USA

I work as a Debug Technician for 10 years. Skilled in Debug PCB's down to component level... »»

Electrical Engineer/Physical Chemist

Desired Field: Research and Development

Columbia, MO, USA

I have a wide range of experience, from working for a defense contractor to one of the world's largest manufacturers... »»

SMT Process and Maintenance Engineer...

Desired Field: Engineering

Juarez, Chihuahua, Mexico

I have more than 5 years of experience working at SMT and final assembly lines...»»

More Resumes:

Post Your Resume for Free...

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 | Bookstore

Next Event: Pan Pacific Microelectronics Symposium 2011 - Jan. 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 Conference on Printed Electronics: What Does It Mean For the Printed Circuit Board Industry? - Jan. 18 - 19

SMTnet Express
January 13, 2011

Subscribers: 25413

SMTnet Members:

Companies: 8537

Users: 32531

Recon - Nitrogen Generators from Domnick Hunter

Manncorp - SMT and thru hole PCB assembly Equipment

PPM - Pre-Owned Quad, MPM Equipment

Aqueous Technologies Zero-Ion g3

Used SMT / PCB Equipment

IBE - Used SMT Equipment

KIC - Thermal Process Tools

Capital Equipment Exchange - Used PCB Assembly Equipment

IPC Apex Expo 2011

Newsletter Editor - Anna Girouard, listings(at), 1-207-780-0887, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

Contact customer service

SMTnet - Electronic Industry Hub

News Forums SMT Equipment Company Directory

Calendar Career Center Advertising About FREE Company Listing!

  • SMTnet
  • »
  • Express Newsletter
SMT feeders

Global manufacturing solutions provider