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SMTnet Express July 25, 2013, Subscribers: 34972, Members: Companies: 13435, Users: 34972

Technical Library

Using Automated 3D X-Ray Inspection to Detect BTC Defects

by Barbara Koczera; Test Research USA, An Qi Zhao; Flextronics

Detecting marginal joints and other solder-related defects on high-temperature thermal pads.

Bottom-termination components (BTC), such as QFNs, are becoming more common in PCB assemblies. These components are characterized by hidden solder joints. How are defects on hidden DFN joints detected? Certainly, insufficient solder joints on BTCs cannot be detected by manual visual inspection. Nor can this type of defect be detected by automated optical inspection; the joint is hidden by the component body...

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Forum search results for related keywords: 3D inspection, BTC, solder joint defects, thermal pads, hidden joints

SMT / PCB Products

MPM Momentum
Stencil Printer
MPM Momentum Series Stencil Printers

A highly reliable printing system...

by: Speedline

ProntoPLACE SMT, Thru-hole Software
Unisoft ProntoPLACE SMT, Thru-hole Software

Be production ready in minutes not days...

by: Unisoft

BGA Solder
BGA Solder Spheres

Exceed both the IPC and MIL standards...


PCB Cleaning Agent
HYDRON WS 325 Cleaning and Defluxing Agent

For cleaning water soluble flux residues...


XPii II Pick & Place System
XPii II Pick & Place

Modular compact footprint...

by: Europlacer

Stencil Printer
SP700avi Inline Stencil Printer

Utilising the most advanced drive...

by: Speedprint

Mx400 High Speed Pick & Place...
Mx400 High Speed Pick & Place

For wide part mix with higher production...

by: Apex FA / Mirae

Mark5 Series -
Reflow System
The Mark III Reflow System

Up to 40% reduction in nitrogen consumption...

by: Heller

SMT / PCB Equipment Auctions

X-Line - SMT Equipment Auctions

Late Model SMT and Thru Hole Equipment

August 12-13 | by: X-Line Asset Management

Electronic Equipment Mart

Heller 1809 Mark III
Reflow Oven
Heller 1809 Mark III Reflow Oven

IBE SMT Equipment

all marketplace listings

Camalot 5000
Adhesive Dispenser
Camalot 5000 Adhesive Dispenser


all marketplace listings

Aqueous Tech. Trident III
Pick and Place...
Aqueous Technologies Trident III


all marketplace listings

Screen Printer
DEK ELA Screen Printer

JMW Enterprises

all marketplace listings

Events Calendar

August 27-29

Surface Cleanliness Assessment - Free Online Webinar
August 15

Career Center


Field Service Representative

North Billerica, MA, USA | BTU International

BGA Lead Technician

Rolling Meadows, IL, USA | Kay and Associates, Inc.

Field Service Technician/Engineer

San Jose, CA, USA | ASM Assembly Systems


Customer Service Engineer

Suzhou, China

SMT Engineer

Chennai, India

Accounting & Payroll Administrator

Surrey, BC, Canada

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: Webinar: PoP Applications, Requirements, Infrastructure and Technologies - July 24


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 India - August 27 - 29

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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Capital Equipment Exchange - Used PCB Assembly Equipment

NextJet Fluid Dispensing - Asymtek

3D SMT AOI - Mirtec

FINEPLACER� coreplus BGA rework station - Finetech

Europe's No. 1 source for pre-owned SMT equipment - AdoptSMT

Pre-Owned Quad, MPM Equipment - PPM

SP700avi Inline Stencil Printer - Speedprint

Momentum Series Stencil Printers - Speedline

PCB Cleaning products - Zestron

Mark5 SMT Reflow Oven - Heller

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