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SMTnet Express, June 12, 2014, Subscribers: 22834, Members: Companies: 13899, Users: 36331

Technical Library

Instrumentation for Studying Real-time Popcorn Effect in Surface Mount Packages during Solder Reflow

Arijit Roy; World Academy of Science, Engineering and Technology

Occurrence of popcorn in IC packages while assembling them onto the PCB is a well known moisture sensitive reliability issues, especially for surface mount packages. Commonly reflow soldering simulation process is conducted to assess the impact of assembling IC package onto PCB. A strain gauge-based instrumentation is developed to investigate the popcorn effect in surface mount packages during reflow soldering process. The instrument is capable of providing real-time quantitative information of the occurrence popcorn phenomenon in IC packages. It is found that the popcorn occur temperatures between 218 to 241°C depending on moisture soak condition, but not at the peak temperature of the reflow process. The presence of popcorn and delamination are further confirmed by scanning acoustic tomography as a failure analysis.

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Forum search results for related keywords: instrumentation, popcorn, solder reflow, strain gauge.

SMT / PCB Products

MS-15 Series
In-Line SPI Machine

Inspection

by: Mirtec

LF-4300
Solder Paste

Solder Materials

by: AMTECH

AQUANOX® A4703
Aqueous Cleaner

Cleaning

by: Kyzen

EXCEN FLEX a Dual Gantry Chip Mounter

Pick & Place

by: SAMSUNG

KE-Series Placement Machines

Pick & Place

by: Juki

MTS500 - Condor
Flying Probe Tester

Test

by: Digitaltest

TruView - Fully Modular X-Ray System

Inspection

by: Creative Electron

SMT Nozzles
and Consumables

Pick & Place

by: Count On Tools

MAX II High Precision Fluid Dispenser

Dispensing

by: GPD Global

Mark5 Series -
Reflow System
The Mark III Reflow System

Reflow

by: Heller

iico
Pick & Place System

Pick & Place

by: Europlacer

SP700avi
Stencil Printer

SP700avi Inline Stencil Printer

Printing

by: Speedprint

SMT / PCB Equipment Auctions

Late Model Electronic Test & Measurement Equipment - Over 300 Lots!

June 16 - 17 | by: X-Line Asset Management

Electronic Equipment Mart

Universal Instruments GSCB31 Genesis

Chipshooters

by: X-Line

Agilent SJ50 2 upgraded to series 3

AOI

by: AdoptSMT Europe

Speedline Aquastorm 200T Board Cleaner

Cleaning Equipment

by: CE Exchange

Pillarhouse Amethyst Selective Solder...

Soldering Equipment

by: JMW Enterprises

Vitronics XPM2-730

Reflow Ovens

by: IBE SMT Equipment

DEK 248CE

Screen Printing Equipment

by: PPM

ETA A500

Stencil Cleaners

by: Shenzhen ETA

Juki KE750/760/2050/2060

Pick and Place Equipment

by: Shenzhen Tek...

Events Calendar

Opto Taiwan 2014

Nangang, Taipei, Taiwan | June 17 - 19 | Evest Corporation - Since 1984, OPTO Taiwan has been the annual event for both the photonics and mechanical industries in Taiwan...

Upper Midwest Expo & Tech Forum

Bloomington, MN, USA | June 18 | IPC - Workshops and a technical conference, in addition to exhibits from leading PCB and electronics assembly equipment manufacturers...

Solutions for Difficult to Clean Components - Online Webinar

Online | July 24 | ZESTRON Corporation - An overview of various board and component geometries that present cleaning challenges...

Career Center

Jobs:

Eastern Region Technical Sales Manager

Manchester, NH, USA | Finetech

Business Development Specialist

Albany, NY, USA | YINCAE Advanced Materials, LLC.

Field Service Engineer

Rowley, MA, USA | MYDATA automation

Resumes:

SMT Prosess Engineer

Delhi, India

SMT Machine Operator

Mesa, AZ, USA

Manufacturing Engineer /Smt programmer

Sullivan, OH, 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: Upper Midwest Expo & Tech Forum - June 18

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: EIPC/IPC Summer Workshop Roadshow - June 20

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

PCB Cleaning products - Zestron

Software for PCB Manufacturing - Unisoft

Dynamo - Convection SMT Reflow Oven from BTU International

JUKI's machines offer you the Lowest Cost of Ownership in the industry.

ATE systems for PCB Manufacturing - Digitaltest

ii-Feed tape feeding solution for Europlacer machines

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

Mark5 SMT Reflow Oven - Heller

Global Source for Advanced SMT Solder Products - Amtech

TruView Prime Portable X-Ray Inspection Machine - Creative Electron

Used SMT Equipment - IBE

PVA Flexible, Customized Fluid Dispensing Systems

PCB Equipment Auctions - X-Line

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