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First Principles of Solder Reflow

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Featured Article

First Principles of Solder Reflow

EFD Inc.

John Vivari

Many solder users have preconceived notions and worries involving reflow profiling guidelines. Year after year of reading profiling recommendations in industry publications, from a litany of pundits, has made it clear that perfect profiles exist and should be sought after. They feel if the solder supplier gives them a tidy drawing on a piece of paper with times and temperatures that it will magically solve all their reflow problems. This is, unfortunately, an often incorrect assumption....

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Featured Auction

SMT Equipment - Test & Measurement Equipment

GoIndustry

Sale Type: Online Auction

Sale Closing: Wednesday, 20 December 2006
at 16:00 CET (local time)

Location of Assets: Frankfurt/Main, Germany

view equipment | register

Surplus to requirements of Major Mobile Phone Manufacturer

Assets for Sale: Placement Machine UNIVERSAL, Auto Optical Inspection System MVP 1820 Ultra , 3-D Scanning Laser Machines General Scanning, Inc. Screwing Machines WEBER, Label Printing Machines WÖLCO / ZEBRA, Laser Engraving Machines BAASEL Lasertech, FT-IR Spectrometer PERKIN ELMER, Submicron Manual Probe Station KARL SÜSS, Network Analyzer HP, Optical Test System TEKTRONIX, Spectrum Analyzer Rhode & Schwarz, Signal Generators HP.

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Best Video Soldering Tips

BEST, INC

Bob Wettermann

BEST Instructors have put to video demonstrations of common hand soldering skills. These are not designed to be in place of live one on one training where repetitive skills and subsequent one on one feedback is given. Rather they are quick refreshers designed to be viewed if a specific skill has not been practiced in a while.

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Forum

Flux residue cause high false reject at ICT

Posted by Learn from U

I have 1 product that using solder bar from vendor called Asahi. After wave process, we found quite a sticky flux residue remain on the board. Eventually, have huge impact on our ICT fisrt pass yield(FPY)... »»

UBLOX Tim-4A reflow problem

Posted by Darby

I have just started production run using this component. After reflow I see that there is an undercut of solder between the pcb and the lead instead of a fillet. This means that some of the leads are sitting above the solder with no wetting to the component... »»

Streaking at Screen Printing

Posted by kvanzill

I am running a Panasonic SPF63 screen printer with Tamura (RMA-012-FPL) solder paste. The problem is after say about 20 prints I begin to get a build up of what looks like a metal on the blades which is the solder paste but it is become a harder solder ball and some what shiney... »»

Visit the Forum

 
Upcoming Events

IPC Printed Circuits Expo, APEX and the Designers Summit

Exhibition | IPC

Tue, February 20, 2007 | Los Angeles Convention Center, LA, USA

Reach the most comprehensive PCB and electronic assembly audiences in North America. Meet the entire supply chain ? EMS and IMS/PCB companies, OEMS, designers and suppliers... »»

DoveBid Electronic Manufacturing Exchange #45

On-Line Auction | DoveBid

Wed, December 20

Semiconductor, Electronic Assembly and Test & Measurement Equipment Surface Mount & Board Assembly Test, Measurement & Inspection Semiconductor Fabrication... »»

iNEMI Organizes Task Group to Address Availability of SnPb BGAs

Task Group | iNEMI

Thu, March 1, 2006

The iNEMI task group will focus its efforts on ways to work with the BGA component supply base (integrated circuit as well as packaging firms) to support SnPb-compatible BGAs, assist with questions of long-term reliability, and/or develop other solutions to address concerns... »»

Visit the Event Calendar

 
Career Center

Jobs:

SMT Process Technician

Cogiscan Inc.

Gaithersburg, MD, USA

Primarily responsible for program and process maintenance, analysis and troubleshooting of all SMT processes and equipment as well as wave solder... »»

Academic Expert / Writer

UVO writing L.L.C.

Pittsfield, ME, USA

We are seeking new experienced, competent, deadline-oriented and highly responsible freelance writers who can write essays and research papers on a variety of subjects... »»

China Sales Manager

Cogiscan Inc.

Bromont, Quebec, Canada

The successful candidate will be responsible for executing strategic sales and marketing plans with the goal of greatly widening the customer base and market share for Cogiscan products... »»

Resumes:

SMT Progammer

Desired Field: Engineering , Production

NJ, USA

Professional with over 10 years experience in Surface Mount Technology. Special expertise in maintenance of various SMT equipment... »»

Quality Assurance Specialist

Desired Field: Quality Control

Norco, CA, USA

30 years successful experience in Quality Assurance Management, Laboratory, Inspection and Cross-Section Evaluation. Working Member of I.P.C. Publications... »»

SMT Engineer

Desired Field: Engineering , Production , Research and Development , Technical Support

Naples, FL, USA

6 years of experience in electronics. I know how to program, operate, maintain, setup SMT machines. I also know how to operate AOI equipment... »»

Visit Career Center

SMTnet Express
December 19, 2006

 

 

 

 

 

 

 


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