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A New Stencil Rulebook for Wafer Level Solder Ball Placement using High Accuracy Screen Printing

Featured Article

A New Stencil Rulebook for Wafer Level Solder Ball Placement using High Accuracy Screen Printing

Printer-hosted processes for solder ball placement are now widely used for package technologies ranging from BGAs using ball diameters above 750µm to the latest WL-CSPs demanding 250µm diameter. This broadening spectrum of applications brings more choices in terms of stencil design rules and production methodologies.

Credit/Source: DEK, Steve Watkin, Tom Falcon


Featured Auction
MC1300 Semi-automatic Stencil Printer

Dual-camera vision

Flexible mounting table for quick setup & changeover of single and double-sided PCBs. »»

Manufacturer: Manncorp


AOI Programming

Programs most popu-
lar AOI Equipment. Converts CAD or GERBER files to AOI program files. »»

Manufacturer: Unisoft

Featured Auction

Electronic Manufacturing Exchange #71


Sale Type: Online Auction

Sale Open: Wed, Jan. 9, 4:00 AM EST

Sale Ends: Thu, Jan. 10, 9:00 PM EST

Location of Assets: Worldwide

Digital oscilloscopes, spectrum, logic and network analyzers, generators, meters, counters, plug-ins, test sets, cards and much more.


Featured Video Best Inc

TSOP32 Installation--Point-to-point Method
(3 min. 23 sec.)


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.

Watch Video...


Unusual board with BGA

Posted by SWAG

We just got a contract to build a board with 1400+ SMT placements. This thing is 16" x 12" and the PCB thickness is 0.142"...»»

VIP98N settings

Posted by mpolak

Could you guys verify my BTU VIP98N oven settings for lead free process. At the moment as my standard profile im using these settings... »»

SMT/ PCT edge conveyor replacement belts...

Posted by ehess

Does anyone kbnow where I can find replacement belts for the old PCT (Process control Technologies) conveyors?... »»

Visit the Forum...


PCB Repair & Rework

Seminar/Course | Precision PCB Services, Inc

Mon, January 07, 2008 | Oroville, CA, USA

In this two day course students will learn how to repair surface mount pads, BGA pads, finger contacts, traces, laminate... »»

Free Reflow Profiling Webinar

Conference | Heller Industries Inc.

Thu, January 17, 2008 | Online

Success Starts with the Right Profile. Join the leader in oven technology for the latest in thermal profiling information... »»


Trade Show/Exhibition | Reed Exhibitions Japan Ltd.

Wed, January 16, 2008 | Tokyo Big Sight, Tokyo, Japan

Exhibition Featuring all Lines of Test, Inspection and Measurement Systems for SMT, IC Packaging and Board Manufacturing... »»

Visit the Event Calendar...

Career Center

Account Manager 1

Panasonic Factory Automation

Buffalo Grove, IL, USA

Responsible to support sales and technical activities to maintain and acquire business with assigned accounts. Administrative support regarding account contracts...»»

Equipment Technician - EMS

Plexus Corp.

Neenah, WI, USA

Responsible for providing technical support and training on all factory/site assembly production equipment. Individual may lead, train, and mentor lower level technicians...»»

Process Engineer

Schweitzer Engineering Laboratories

Pullman, WA, USA

The ideal candidate will be able to assist management to specify, evaluate, recommend and conduct acceptance tests on electronic assembly process equipment...»»

Visit Career Center...

Industry Associations


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 for SMT Processes and Six Sigma Green Belt


Next Event: Medical Electronics Symposium


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

Standards & Publications

Online Store

Next Event: IPC Test and Inspection Conference: The Changing World of Test Protocols - Reducing Time to Market

SMTnet Express
December 13, 2007

Subscribers: 29957

SMTnet Members:

Companies: 7036

Users: 22836

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Banner ad spots can be purchased to appear in single or multiple issues of the Express. Send your inquiries to SMTnet

SMTnet Sponsorship Opportunities

Join the companies below who get their products & services found in front of over 1,000,000 users a year at SMTnet

Best Inc


Calkins Machine Corp.

Cardinal Circuit

CE Exchange



Endicott Interconnect Technologies


Grip Technologies

Heller Industries

IBE SMT Equipment


Kenthe co.,Ltd China

Lewis & Clark




Nozzle Supply Company

Precision Placement Machines


ROC Exhibitions

Siborg Systems, Inc


SMT Resource Group LLC

Surplus Global


World Equipment Source, LLC

Xline Asset Mgmt

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