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SMTnet Express July 11, 2013, Subscribers: 26149, Members: Companies: 13418, Users: 34911

Effect of BGA Reballing and its Influence on Ball Shear Strength

by S. Manian Ramkumar Ph.D., Andrew J. Daya, Daniel B. Lewanda; Rochester Institute of Technology, Scott Rushia; Martin

As more components are becoming lead free and not available in the tin lead alloy, there is an industry wide interest when it comes to the reballing and the subsequent effects it has on the strength of those components. This is particularly true for legacy parts needed for military applications some of which use tin lead solder. There is cause for concern due to the potential mixing of alloys and the differences in reflow temperatures of the two different alloys. Additionally, there are unknown characteristics regarding the intermetallics that are formed due to the potential of mixed alloys.

This research paper will focus on the effect of various parameters that are used to reball a BGA and their effect on the overall shear strength.

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Forum search results for related keywords: BGA Reballing, shear strength, BGA, tin lead solder, flux

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HYDRON® WS 325
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Surplus SMT Equipment

July 23-24 | by: X-Line Asset Management

New & Late Model SMT Equipment

July 16-18 | by: Cardinal Circuit Auctions

Speedline UltraFlex
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IBE SMT Equipment

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Crown Simplimatic
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PPM

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Universal Instruments
GX 11 Chipshooter
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Philadelphia Expo and Tech Forum
August 13

Cleaning Process Control - Free Online Webinar
July 18

Jobs:

Electronic Assembler

Appleton, WI, USA | Surface Mount Technology Corp.

Field Service Technician/Engineer

San Jose, CA, USA | ASM Assembly Systems

Manufacturing Test Engineer

Fremont, CA, USA | Unigen Corporation

Resumes:

Customer Service Engineer

Suzhou, China

PCB CAM Engineer

Erode, India

Accounting & Payroll Administrator

Surrey, BC, Canada

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: Webinar: PoP Applications, Requirements, Infrastructure and Technologies - July 16

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 APEX India - August 27 - 29

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

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