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SMTnet Express, November 6, 2014, Subscribers: 23500, Members: Companies: 14091, Users: 37109

Technical Library

Effect of Process Variations on Solder Joint Reliability for Nickel-based Surface Finishes

Hugh Roberts, Sven Lamprecht, Gustavo Ramos, Christian Sebald; Atotech.

This paper summarizes the results of recent investigations to examine the effect of electroless nickel process variations with respect to Pb-free (Sn-3.0Ag-0.5Cu) solder connections. These investigations included both ENIG and NiPd as surface finishes intended for second level interconnects in BGA applications. Process variations that are suspected to weaken solder joint reliability, including treatment time and pH, were used to achieve differences in nickel layer composition. Immersion gold deposits were also varied, but were directly dependent upon the plated nickel characteristics. In contrast to gold, different electroless palladium thicknesses were independently achieved by treatment time adjustments...

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Forum search results for related keywords: surface finish, solder joints reliability, ENIG.

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iico
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Europlacer

MAX II High Precision Fluid Dispenser

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GPD Global

ZESTRON® EYE
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ZESTRON

Mark5 Series -
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The Mark III Reflow System

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Heller

X-eye SF160ACT
3D CT Analysis

Inspection

SEC

SP700avi -
Stencil Printer

SP700avi Inline Stencil Printer

Printing

Speedprint

Voidstopper
Solder Paste

Solder Materials

AMTECH

ProntoSELECTIVE-SOLDERING

Software

Unisoft

SMT Nozzles
and Consumables

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Count On Tools

Quantum™ Large-Format Fluid Dispenser (new!)

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CUBE.460 Selective Soldering System

Wave / Selective Soldering

Juki

MV-2GT Series -
Desktop AOI Machine

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Mirtec

SMT / PCB Equipment Auctions

Late Model SMT, Test, Lab, & QC Equipment Auction.

November 11 - 12
X-Line Asset Management

Late Model Siemens SMT Equipment for Sale

November 28
GoIndustry DoveBid

Electronic Equipment Mart

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SMT Pick and Place
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Shenzhen Tek...

Events Calendar

International Wafer-Level Packaging Conference

San Jose, CA, USA | November 11 - 13 | SMTA - Plan now to join us for free technical sessions, free lunch and the chance to network with leading suppliers to our industry!...

Printed Electronics USA 2014

Santa Clara, CA, USA | November 19 - 20 | IDTechEx, Inc. - The eleventh annual IDTechEx event focuses on the commercialization of the technology...

Southeast Design-2-Part Show

Raleigh, NC, USA | November 19 - 20 | Design-2-Part Shows - The largest design and contract manufacturing show in the Southeast....

Career Center

Jobs:

Field Service Engineer

Glassboro, NJ, USA | ESSEMTEC

Service Technician

Northern CA and WI, USA | Kurtz Ersa Corporation

Business Development Manager

Golden, CO, USA | Photo Stencil LLC

Resumes:

MECHANICAL ENGINEER with 7.5 yrs experiance in SMT, Industrial Engineering & Manufacturing.

FARIDABAD, HARYANA, India

Hand Soldering Tech

Rolling Meadows, IL, USA

Industry Associations Events

SMTA

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: International Wafer-Level Packaging Conference - November 11 - 13

IPC

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: Assembly & Reliability Conference - November 18

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

SMTnet.com, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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Custom SMT Equipment Nozzles - Count on Tools

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Fluid Pressure Control - a breakthrough in uniform fluid dispensing - GPD Global

ii-Feed tape feeding solution for Europlacer machines

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