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The Proximity of Microvias to PTHs And Its Impact On The Reliability

Featured Article

The Proximity of Microvias to PTHs And Its Impact On The Reliability

Universal Instruments Corporation

Credit/Source: Anthony Primavera, Manager, CSP Consortium Universal Instruments Corp. Jaydutt Joshi, Principle Program Manager, Skyworks Solutions Inc

High Density Interconnect (HDI) technology is fast becoming the enabling technology for the next generation of small portable electronic communication devices. These methods employ many different dielectrics and via fabrication technologies. In this research, the effect of the proximity of microvias to Plated Through Holes (PTHs) and its effect on the reliability of the microvias was extensively evaluated...


Featured Auction

Hewlett-Packard - Sale #20


Sale Type: Online Auction

Sale Open: 14 May 2007, 01:00 PM (EDT)

Sale Close: 15 May 2007, 01:00 PM (EDT)

Location of Assets: USA

view equipment | register


Assets for Sale:

IT, Test & Measurement, Electrical, Toolroom, Material Handling, Plant Support & Office Equipment.


Featured Software



Rich Larue

Download Free Trial

In minutes Unisoft ProntoTEST-FIXTURE software translates CAD and Bill of Materials (BOM) files into real reference designators, netlists, X/Y component pin geometries, values, tolerances, part numbers, etc. This data is then used by Test Engineers to program their ATE (Genrad ".ckt", Teradyne "ipl", Hewlett Packard "board & board x/y"), MDA, and flying probe test equipment and design the "Bed of Nails" test fixtures.


Best Video Soldering Tips

Tip #20. Soldering Gold Cups Using Lead Free Solder-Wire Insertion.


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.

Watch Video


Solder wave

Posted by jmabie

I am using a Novastar 12S solder wave with Kester water soluable fux 22-2425. I have used this for years without problems on an old Hollis machine. Just started using the Novastar and after fine tuning I get itermitten bridging on the front of the PCB...»»

Quoting Software suggestions

Posted by bkgsmtnet

I need suggestions for Quoting software for a contract electronics manufacturing service. I want something detailed if possible that allows breaking down every step involved and multiple labor rates depending on the task being performed... »»

Hot Tear / Shrink Hole--->Happen after wave soldering

Posted by Learn from U

I think Hot Tear or Shrink Hole defect is common in LEAD FREE wave soldering, especially those solder is from SAC type. As far as I know, it is related to cooling rate. Is there anyone know how to solve or reduce this defect at wave soldering process?... »»

Visit the Forum...


Nepcon UK

Trade Show/Exhibition | Nepcon Electronics

Tue, May 15, 2007 | Birmingham NEC, UK

Over 400 exhibitors cover the breadth of the industry from design to manufacture allowing products and services to be seen in a live environment and details to be discussed face-to-face... »»

Hands-On PLC Training Workshop

Seminar/Course | Business Industrial Network

Wed, May 16, 2007 | Stone Mountain Resort, Atlanta, GA, USA

You will receive hands on training with the lap top using RS Logix and your pick of the PLC5, or a SLC500 or a Micrologix PLC... »»

Lead Free Workshop in Guadalajara, Mexico featuring Dr. Jennie Hwang

Seminar/Course | Blackfox Training Institute

Wed, May 16, 2007 | Guadalajara, Mexico

This course provides a working knowledge to all who are involved with or interested in understanding and solving Pb-free production problems to achieve high production yield and producing reliable products... »»

Visit the Event Calendar...

Industry Associations




SMTA - The 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. The association is dedicated to the advancement of the electronics industry through member education and interaction. Membership Info

Upcoming Event for SMTA

Tampa Bay Chapter Industry Expo

Wed, May 16, 2007 | Clearwater, FL, USA

Free Technical Presentations by multiple speakers: Allen Duck, Atek LLC, "Vapor Phase Soldering"; Jack Reinke,Kyzen, "Cleaning Beneath Low Stand-off SMT Components"; and Scott Hary, NStarch, "Advancements in Electrically Conductive Adhesives"...»»


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

Upcoming Event for IPC

Embedded Passive Components -Costs More or Costs Less?

Wed, May 16, 2007 | Online Webcast

In less than an hour, you can learn how to establish a cost basis, quickly, reliably, and inexpensively. This is a must for anyone responsible for or considering embedding passive components...»»

Career Center


Technical Support Engineer

Indium Corporation

Clinton, NY, USA

Under the supervision of the America's Technical Services Manager, support all phases of development...»»

Mechanical Engineer

Machine Vision PRoducts

Carlsbad, CA, USA

Create detail designs from general requirements, create prototype sketches, select components, and conduct design reviews...»»

Equipment Maintenance Technician

Schweitzer Engineering Laboratories

Pullman, WA, USA

Coordinate and/or perform preventive maintenance on assembly machinery. Troubleshoot machinery failures...»»


Sr SMT Technician

Desired Field: Maintenance, Production

Palm Bay, FL, USA

12 years ems manufacturing experience. Familiar with the operation, maintanance, programming...»»

SMT Engineer

Desired Field: Production, Quality Control

Gurgaon, Haryana, India

5 years of high volume manufacturing experience in creating and improving manufacturing processes. Proven track record of getting things done...»»

SMT Engineer

Desired Field: Engineering, Production

Mentor, OH, USA

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

Visit Career Center...

SMTnet Express
May 10, 2007

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