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SMTnet Express, October 3, 2019, Subscribers: 32,260, Companies: 10,890, Users: 25,178

Technical Library

Effects of Temperature Uniformity on Package Warpage

Credits: Akrometrix

Knowing how package warpage changes over temperature is a critical variable in order to assemble reliable surface mount attached technology. Component and component or component and board surfaces must stay relatively flat with one another or surface mount defects, such as head-in-pillow, open joints, bridged joints, stretched joints, etc. may occur. Initial package flatness can be affected by numerous aspects of the component manufacturing and design. However, change in shape over temperature is primarily driven by CTE mismatch between the different materials in the package. Thus material CTE is a critical factor in package design. When analyzing or modeling package warpage, one may assume that the package receives heat evenly on all sides, when in production this may not be the case. Thus, in order to understand how temperature uniformity can affect the warpage of a package, a case study of package warpage versus different heating spreads is performed.

Forum search results for related keywords: warpage.

SMT / PCB Products

PCB ASSEMBLY

Coating Equipment

GPD Global

Hand Assembly

Virtual Industries

Productronica
Hall A4 Booth 114

Solder Materials

Qualitek

Reflow

Heller

Productronica
Hall A2 Booth 461, Hall A1 Booth 305

Dispensing

Nordson Asymtek

Productronica
Hall A2 Booth 345, Hall A2 Booth 445

SMD REEL STORAGE

PCB CLEANING

SMD Reel Storage

Accu-Assembly

Cleaning

ZESTRON

Productronica
Hall A2 Booth 359

Cleaning

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

Solder Paste Stencils

BEST, Inc.

Electronic Equipment Mart

DEK Horizon 02i

Screen Printers

IBE SMT Equipment

Camalot, MPM, Quad Parts

Pick and Place/Feeders

PPM Parts

A8 Reflow Soldering Machine

Soldering - Reflow

Qinyi Electronics Co.,Ltd

YesTech YTX-X3 3D

X-Ray Inspection

Capital Equipment Exchange

Events Calendar

New England Expo and Technical Forum | October 8 | SMTA

M-EXPO Wire Processing Technology | October 9-11 | IPC

PCB Cleaning Webinar Series | ZESTRON Corporation

Training Courses

IPC Training & Certification Courses

Soldering & PCB Rework Courses

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

Saki's 3D inspection and measurement systems support QUALITY-DRIVEN PRODUCTION.

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

Experience the Blackfox Difference - Premier IPC Training & Certification Center

Zestron PCB Cleaning Academy

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

Software for PCB Manufacturing - Unisoft

Quality Pre-Owned SMT Eequipment - Robo-Tek

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

NEW Fully featured benchtop dispenser - GPD Global

Vacuum Tweezers - pick up small components with ease

HELLER - Choose an Oven for Your Reflow Needs

Used SMT Equipment - IBE

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

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

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 Reflow System

Surface Insulation Resistance