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SMTnet Express, December 23, 2015, Subscribers: 23,927, Members: Companies: 14,845, Users: 39,621

Technical Library

PCB Fabrication Processes and Their Effects on Fine Copper Barrel Cracks

Edward Arthur, Charles Busa, Melissa Durfee, Chad Gibson, Wade Goldman P.E.; Raytheon Company, Space and Airborne Systems, The Charles Stark Draper Laboratory, Inc., Raytheon Company, Integrated Defense Systems.; Raytheon

The onset of copper barrel cracks is typically induced by the presence of manufacturing defects. In the absence of discernible manufacturing defects, the causes of copper barrel cracks in printed circuit board (PCB) plated through holes is not well understood. Accordingly, there is a need to determine what affects the onset of barrel cracks and then control those causes to mitigate their initiation.

The objective of this research is to conduct a design of experiment (DOE) to determine if there is a relationship between PCB fabrication processes and the prevalence of fine barrel cracks.

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Forum search results for related keywords: fabrication process, copper barrel, barrel cracks, plated vias.

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BTU International






Nordson Asymtek

Pick & Place

Count On Tools






VJ Electronix

Material Handling/Storage



GPD Global



SMT / PCB Equipment Auctions

Surplus Well Maintained Siemens SMT Placement Machines, Feeders and Accessories

January 12 - 13 | X-Line Asset Management

Surplus Late Model SMT Equipment. 3 Complete SMT Lines - 30,000 Sq Ft Facility

January 19 - 20 | The Branford Group

Electronic Equipment Mart

Essemtec FLX 2020-L

Pick and Place Equipment/Feeders

AdoptSMT Europe GmbH

Assembleon AX-501

SMD Placement Machines

Capital Equipment Exchange


Repair/Rework Equipment

KD Electronics Ltd.

Agilent, Tektronix, and More

Test & Measurement

X-Line Asset Management

Novastar SPA-400F

Soldering Equipment/Fluxes

IBE SMT Equipment

PCB Conveyors


JMW Enterprises

Siemens Siplace X4

Pick and Place Equipment

GES Associates LLC

DEK Photon

Screen Printing Equipment

Tekmart International Inc.

Quad Parts

Pick and Place

PPM Parts

Events Calendar

NEPCON JAPAN 2016 - 45th Electronics R&D and Manufacturing Technology Expo

Conference, Trade Show/Exhibition | January 13 - 15 | Reed Exhibitions

Pan Pacific Microelectronics Symposium

Conference | January 25 - 28 | SMTA

5th EFY Expo India 2016

Conference, Trade Show/Exhibition | January 11 - 13 | EFY Enterprises Pvt Ltd

Career Center

Manufacturing Engineer III

Charleston, SC, USA

UEC Electronics

Technical Sales Engineer

San Jose, CA, USA

YINCAE Advanced Materials, LLC.

Business Development

Appleton, WI, USA

Surface Mount Technology Corp.

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

Next Event: Pan Pacific Microelectronics Symposium 2016 - January 25 - 28


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: IPC APEX EXPO 2016 - March 13 - 17

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

3D CT X-ray Inspection from SEC - Rework Tools

Scienscope - Complete PCB Inspection Solutions

PCB Cleaning products - Zestron

ii-Feed intelligent pick and place feeder

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

HELLER - Choose an Oven for Your Reflow Needs

MIRTEC - the Global Leader in PCB INSPECTION Technology.

Speedprint SP700avi inline SMT screen printer

Ready, Set, Jet with Nordson ASYMTEK. New NexJet NJ-8 Jetting System with ReadiSet Jet Cartridge.

Used SMT Equipment - IBE

ISVI advanced high-speed, high-resolution industrial cameras

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