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SMTnet - where else would you meet over 500,000 industry professionals? Full-featured Benchtop Dispense System - GPD Catalina

SMTnet Express, October 17, 2019, Subscribers: 32,268, Companies: 10,900, Users: 25,212

Technical Library

Effect Of Voids On Thermo-Mechanical Reliability of Solder Joints

Credits: Alpha Assembly Solutions

Despite being a continuous subject of discussion, the existence of voids and their effect on solder joint reliability has always been controversial. In this work we revisit previous works on the various types of voids, their origins and their effect on thermo-mechanical properties of solder joints. We focus on macro voids, intermetallics micro voids, and shrinkage voids, which result from solder paste and alloy characteristics. We compare results from the literature to our own experimental data, and use fatigue-crack initiation and propagation theory to support our findings. Through a series of examples, we show that size and location of macro voids are not the primary factor affecting solder joint mechanical and thermal fatigue life. Indeed, we observe that when these voids area conforms to the IPC-A-610 (D or F) or IPC-7095A standards, macro voids do not have any significant effect on thermal cycling or drop shock performance.

Forum search results for related keywords: voids, solder joints, thermomechanical.

SMT / PCB Products

PCB ASSEMBLY

Hand Assembly

Virtual Industries

Productronica
Hall A4 Booth 114

Solder Paste Stencils

BEST, Inc.

Dispensing

Techcon

Productronica
Hall A2 Booth 135

Dispense Pumps for Integration

Retrofit or integrate Precision Dispense Pumps into your dispenser to improve fluid dispensing results.

Dispensing

GPD Global

Reflow

Heller

Productronica
Hall A2 Booth 461
Hall A1 Booth 305

SMD REEL STORAGE

PCB CLEANING

SMD Reel Storage

Accu-Assembly

Cleaning

ZESTRON

Cleaning Agents

Kyzen

Productronica
Hall A4 Booth 465

PCB TEST & INSPECTION

PCB REWORK

Inspection

Mirtec

Productronica
Hall A2 Booth 413

Test

Seika Machinery

Productronica
Hall A1 Booth 131

Rework

Metcal

Productronica
Hall A2 Booth 135

Electronic Equipment Mart

Universal Instruments Advantis

Pick and Place/Feeders

IBE SMT Equipment

Camalot, MPM, Quad Parts

Pick and Place/Feeders

PPM Parts

Juki FX-3RL

Chipshooters / Chip Mounters

Qinyi Electronics

MPM Accela

Screen Printers

Capital Equipment Exchange

Events Calendar

International Wafer-Level Packaging Conference (IWLPC) | October 23 - 24 | SMTA

IPC Electronics Materials Forum 2019 | November 5 - 7 | IPC

PCB Cleaning Webinar Series | ZESTRON Corporation

Training Courses

IPC Training & Certification Courses

Soldering & PCB Rework Courses

PCB Design Courses

Electronics Assembly Training Courses

Electronics Inspection Training Courses

Online Electronics Manufacturing and Assembly Training Courses

Busy to get all of your required training done? We can just pull up to your facility with our mobile training center!

Career Center

Electronics Experts Needed - Contract Jobs

offered by: Performance Review Institute

An excellent contract job opportunity for consultants or recent retirees

Do you have experience in some or all of these processes: Printed Boards, or Printed Board Assemblies, or Cable and Wire Harness Assemblies? We have ELECTRONICS AUDITOR positions available now!

US and International Travel, Flexible scheduling, Competitive compensation and travel expenses...

Click for more information »»

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 | Upcoming Events

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 | Online Store | Upcoming Events

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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Used PCB Assembly Equipment - CE Exchange

Software for PCB Manufacturing - Unisoft

Mobile Training Center - We can just pull up to YOUR FACILITY with everything you need for IPC/PCB TRAINING!

Delta Solder Materials from Qualitek for Ultra-Fine Pitch printing.

Unused Equipment? - let BajaBid turn your EXCESS ASSETS into cash!

Zestron PCB Cleaning Academy

MIRTEC MV 6 OMNI High-Speed / High-Performance 3D AOI MACHINE.

Hioki 1240 Flying Probe Tester - ultra-high speed measuring, fine pitch inspection.

AccuStock��� Automatic Reel Component Storage (ASRS)

ELEVATE THE EXCELLENCE OF ELECTRONICS - Plan now to be in San Diego for IPC APEX EXPO 2020

Vacuum Tweezers - pick up small components with ease

HELLER - Choose an Oven for Your Reflow Needs

Experience the Blackfox Difference - Premier IPC Training & Certification Center

Used SMT Equipment - IBE

Quality Pre-Owned SMT Eequipment - Robo-Tek

SMT Parts Store Online - MPM, Camalot, Quad, Mirae - nozzles, feeders, accessories.

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