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SMTnet Express, January 2, 2020, Subscribers: 33,306, Companies: 10,954, Users: 25,467

Technical Library

Temperature Cycling and Fatigue in Electronics

Credits: DfR Solutions

The majority of electronic failures occur due to thermally induced stresses and strains caused by excessive differences in coefficients of thermal expansion (CTE) across materials.

CTE mismatches occur in both 1st and 2nd level interconnects in electronics assemblies. 1st level interconnects connect the die to a substrate. This substrate can be underfilled so there are both global and local CTE mismatches to consider. 2nd level interconnects connect the substrate, or package, to the PCB. This would be considered a "board level" CTE mismatch. Several stress and strain mitigation techniques exist including the use of conformal coating.

Forum search results for related keywords: temperature cycling, solder joint reliability.

SMT / PCB Products

PCB ASSEMBLY

Solder Paste Stencils

BEST, Inc.

Reflow

Heller

IPC Apex Expo Booth # 2137

Dispense Pumps for Integration

Retrofit or integrate Precision Dispense Pumps into your dispenser.

Dispensing

GPD Global

IPC Apex Expo Booth # 3609

Solder Materials

Qualitek

IPC Apex Expo Booth # 629

Dispensing

Nordson Asymtek

IPC Apex Expo Booth # 1611

Hand Assembly

Virtual Industries

IPC Apex Expo Booth # 1200

PCB CLEANING

PCB STORAGE

PCB INSPECTION

Cleaning

ZESTRON

IPC Apex Expo Booth # 1319

Board Handling - Storage

Seika Machinery

IPC Apex Expo Booth # 3645

Inspection

Mirtec

IPC Apex Expo Booth # 1900

PCB REWORK

PCB SOFTWARE

Rework

Metcal

Software

Unisoft

Electronic Equipment Mart

Ekra X4

Screen Printers

IBE SMT Equipment

IPC Apex Expo Booth # 2528

Agilent 5DX Series 5000 3D

X-Ray Inspection

Capital Equipment Exchange

WDS-750 Automatic BGA

Repair/Rework

Qinyi Electronics Co.,Ltd

Fuji XP-143E

Chipshooters / Chip Mounters

Robo-Tek

Camalot, MPM, Quad Parts

Pick and Place/Feeders

PPM Parts

Universal Instruments GENESIS

Chipshooters / Chip Mounters

KD Electronics Ltd.

Events Calendar

IPC APEX EXPO 2020

SMTA Rocky Mountain Expo & Tech Forum | Denver, CO | January 23 | SMTA

IPC APEX EXPO 2020 | February 1 - 6 | IPC

Training Courses

FIND TRAINING FOR:

IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

Online Training

Busy to get all of your required training done? We can just pull up to your facility with our mobile training center!
Blackfox - Premier IPC Training & Certification. Experience the Blackfox Difference!

Career Center

Field Service Engineer

|

Pitman, NJ | ESSEMTEC USA

Field Service Engineer

|

Buford, GA | Seika Machinery

SMT Process Engineer (Starlink)

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Hawthorne, CA | SpaceX

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

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

Metcal CV-5200 Connection Validation Soldering System

Soldertools.net - Rework Tools

NEW Fully featured benchtop dispenser - GPD Global

Vacuum Tweezers - pick up small components with ease

HELLER - Choose an Oven for Your Reflow Needs

Kyzen Free PCB Cleaning Audit

KD Electronics - High quality SMT nozzles, feeders, cutters, filters, etc

Quality Pre-Owned SMT Eequipment - Robo-Tek

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

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Precision Auger Dispense Pump

conformal coating pcb - asymtek