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Surface Insulation Resistance Testing. Results of Independent Testing for Best Inc. BGA Stencil Repair Rework Samples Solder Paste Reattachment

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Featured Article

Surface Insulation Resistance Testing. Results of Independent Testing for Best Inc. BGA Stencil Repair Rework Samples Solder Paste Reattachment

Best, Inc

Ray Cirimele

Samples were prepared using BGA Daisy Chain Test Chips from Amkor with 484 I/O and pads at a 1.0 mm pitch. The daisy chain test cards are a single sided FR4 material with 1 oz. copper and a HASL finish. The card pad size is .025 with a 1mm pitch. As the BGA is configured, two patterns of the Daisy Chain run adjacent to a third common pattern. Insulation resistance measurements were made from each of the individual patterns to the common. Each of the sample boards contains four devices. This gives a total of 8 measurements per board. With two different boards and two different BGA attachment techniques gives a total of 16 total measurements for the testing. Only 15 total measurements could be made due to a short between one of the daisy chain patterns and common on the non-StencilQuik™ test card...


Featured Software



Rich Larue

Download Free Trial

ProntoVIEW-MARKUP is assembly viewer software used by electronics manufacturers to quickly find components, pin, shorts between traces, etc. ProntoVIEW-MARKUP is also a redline tool that allows annotation of the assembly to create work and assembly instructions, first article inspection, etc.


Featured Auction

Electronic Manufacturing Exchange #50


Sale Type: Online Auction

Starts: Monday, 05 March 2007, 01:00 AM

Ends: Tuesday, 06 March 2007, 01:00 PM

Location of Assets: Worldwide

view equipment | register


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



CSM84 doorway ?

Posted by jmelson

Does anyone know how wide a doorway you need to accomodate a Philips CSM84? I don't mind taking off covers and accessories to make it a bit narrower, if that will help. The spec sheet indicates the smallest dimension is 53"... ��

Lead manufacturing to lead free transisition

Posted by Bill

What are some of the must do, cannot go without changes to our process and equipment before we adopt a lead free process? Would we have to completely change out our ovens? I thought I read that using old ovens was a no-no... ��

ESD Question

Posted by bran

We wash our boards in a metal wire rack that has latex 1/2 inch tubing connected to it so the pcbs do not move from water or air flow. It acts as a buffer between the wire cage and the pcb. Can the latex tubing be an esd issue?... ��

Visit the Forum...


Jabil Global Online Auction

Online Auction | X-Line Asset Management

Tue, March 06, 2007

Featuring: Quality SMT Equipment from Global Facilities. Over 300+ Pieces of Quality SMT Assembly Equipment and Accessories From A World-Renowned Manufacturing Firm.... ��

Arizona SMTA Vendor Show and Technical Program

Trade Show/Exhibition | SMTA

Wed, March 14, 2007 | Embassy Suites Hotel, Tempe, AZ, USA

Join us at the Arizona SMTA Vendor Show and Technical Program, a follow-up to the successful 2006 event... ��

Signal Integrity & EMI Control in High Speed Circuits

Seminar/Course | Premier EDA Solutions Ltd.

Tue, March 06, 2007 | The Stone House Hotel, Staffs, UK

The increase in switching speeds of modern digital electronics causes significant challenges for the PCB designer. This seminar has had its content revised and updated to include the very latest developments in high speed design... ��

Visit the Event Calendar...

Career Center


Manufacturing Project Manager

KN Research

Austin, TX, USA

Approximately 10 years experience. Great interpersonal skills and relationship management skills. Ability to gain cross-functional support...��

VP of Quality

STEC, Inc.

Orange County, CA, USA

This individual should have hands-on problem solving skills that can be regimented into a failure analysis and preventive measurement process...��

Application / Design Engineer

Multi-Fineline Electronix

Anaheim, CA, USA

Develop design solutions and recommendations to solve customer problems while promoting and incorporating MMP concepts...��


Sr. Manufacturing Engineer

Desired Field: Engineering

Lakewood, CA, USA

Quality conscience, detail oriented, manufacturing engineer, with a hands on approach to overall process improvement and development...��

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

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
March 1, 2007

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