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SMTnet Express, May 17, 2018, Subscribers: 31,044, Companies: 10,939, Users: 24,723

Technical Library

Statistical Aspect on the Measuring of Intermetallic Compound Thickness of Lead Free Solders

Azman Jalar, Maria Abu Bakar, Roslina Ismail, Abdul Razak Daud; Universiti Kebangsaan Malaysia

Intermetallic compound (IMC) growth is being studied in earnest in this past decade because of its significant effect the solder joint reliability. It appears that from numerous investigations conducted, excessive growth of IMC could lead to solder joint failure. Leading to this, many attempts has been made to determine the actual IMC thickness. However, precise and true representation of the growth in the actual 3D phenomenon from 2D cross-section investigations has remained unclear.

This paper will focus on the measuring the IMC thickness using 3D surface profilometer (Alicona Focus G4). Lead free solder, Sn3.0Ag0.5Cu (SAC305) was soldered onto copper printed circuit board (Cu PCB). The samples were then subjected to thermal cycle (TC) storage process with temperature range from 0 ��C to 100 ��C for 200 cycles and up to 1000 cycles were completed.

Forum search results for related keywords: intermetallic growth, lead free solder, thermal cycle test, thermal cycle test.

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GPD Global



Solder Paste Stencils

BEST, Inc.



Hand Assembly

Virtual Industries

Pick & Place



Cleaning Agents


Cleaning Agents


Board Handling - Storage

Seika Machinery





Creative Electron







Precision PCB Services

SMT / PCB Equipment Auctions

Closure of Well Maintained EMS Facility Due To Company Merger

X-Line Asset Management

Electronic Equipment Mart


AOI / Automated Optical Inspection

ECM Equipment Sales, Inc.

DEK Horizon 03iX

Screen Printing Equipment

KD Electronics Ltd.

Electrovert Omni Excel 10

Reflow Ovens

Capital Equipment Exchange

PCB Conveyors


JMW Enterprises

Mirtec MV-7U AOI

Inspection Equipment

IBE SMT Equipment

Juki KE2080E

Pick and Place Equipment/Feeders

X-Line Asset Management

Events Calendar

ITI and IPC Conference on Emerging & Critical Environmental Product Requirements | June 4 | IPC

Tin Whisker - All You Should Know - SMTA Webtorial | May 18 | SMTA

Everything You Need to Know About X-Rays | June 22 | Creative Electron

PCB Cleaning Webinar Series | ZESTRON Corporation

Training Courses

IPC Training & Certification Courses

Soldering & PCB Rework Courses

Career Center

Service Engineer


Huntingdon Valley, PA | Manncorp

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San Jose, CA | YINCAE Advanced Materials

Commission Sales


Everywhere | SMTnet

Industry Associations Events


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


Used PCB Assembly Equipment - CE Exchange

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Experience the Blackfox Difference - Premier IPC Training & Certification Center

Used SMT Equipment - IBE

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

Innovative aqueous and solvent based technologies for cleaning PCBs

Custom SMT Nozzles and Tools - Count on Tools

Rework Made Easy - Guided processes with computer aided alignment and 3900W of power - Ersa HR 550 Rework Station

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

Speedprint SP700avi inline SMT screen printer

Software for PCB Manufacturing - Unisoft

SMT, PTH, AOI & Test Equipment

NEW PDR Products for IR Thermal Test and Rework

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

Quality Pre-Owned SMT Eequipment - Robo-Tek - Rework Tools

NEW Fully featured benchtop dispenser - GPD Global

HELLER - Choose an Oven for Your Reflow Needs

KIC - Making Reflow Ovens Smarter

Discover the Next Generation of Electronics Inspection - Join the YXLON EVOlution

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