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SMTnet Express, April 16, 2015, Subscribers: 22,628, Members: Companies: 14,302, Users: 38,055

Technical Library

Stereo Vision Based Automated Solder Ball Height Detection

Jinjin Li, Lina J. Karam; School of Electrical, Computer, & Energy Engineering, Arizona State University, Bonnie L. Bennett, Jeff S. Pettinato; Intel Corporation.

Fig. 1. Illustration of the ball peak point reflection in the imaging setup

Solder ball height inspection is essential to the detection of potential connectivity issues in semi-conductor units. Current ball height inspection tools such as laser profiling, fringe projection and confocal microscopy are expensive, require complicated setup and are slow, which makes them difficult to use in a real-time manufacturing setting. Therefore, a reliable, in-line ball height measurement method is needed for inspecting units undergoing assembly. (...)

In this paper, an automatic, stereo vision based, in-line ball height inspection method is presented. The proposed method includes an imaging setup together with a computer vision algorithm for reliable, in-line ball height measurement.

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Forum search results for related keywords: solder balls, BGA, solder joints inspection.

SMT / PCB Products

Inspection

ASC International

Software

JTAG

Pick & Place

ESSEMTEC

Dispensing

Asymtek

Pick & Place

Europlacer

Dispensing

GPD Global

The Mark III Reflow System

Reflow

Heller

Cleaning

ZESTRON

Inspection

SEC

Pick & Place

Apex Factory...

SP700avi Inline Stencil Printer

Printing

Speedprint

Inspection

ISVI

Material Handling/Storage

ECD

Solder Materials

AIM

Inspection

Mirtec

Rework

BEST, Inc.

SMT / PCB Equipment Auctions

Surplus Equipment From Major Semiconductor Manufacturer

April 22 - 23
X-Line Asset Management

Late Model Conformal Coating Systems & Electronic Manufacturing Equipment

Bids Due: April 30

GoIndustry DoveBid

Electronic Equipment Mart

Vitronics XPM3-730

Reflow Ovens

IBE SMT Equipment

Fuji NXT M3S

Chipshooters / Chip Mounters

Tekmart International

Crown Simplimatic 8010 40.5 Inch Conveyor

Conveyors

JMW Enterprises

Quad Parts, Feeders, Nozzles

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PPM Parts

Speedline
MPM Excel

Screen Printing Equipment

CE Exchange

Finetech Fineplacer

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KD Electronics

Agilent SJ50 2 upgraded to series 3

AOI

AdoptSMT Europe

Glenbrook RTX113


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Shenzhen Tek...

Events Calendar

Design & Assembly of 0201, 01005 and Next Generation Chips

Online Webinar | May 11 | ASKbobwillis.com

2015 PCB Cleaning Webinar Series

Online Webinar | ZESTRON

National Electronics Week 2015

Birmingham, UK | April 21 - 22 | NEW Events Ltd

Career Center

Jobs:

Field Service Engineer

Longmont, CO, USA | A-Tek Systems Group LLC

Global Applications Manager - Electronic Materials

South Plainfield, NJ, USA | Alpha

Dallas Expo and Tech Forum

Plano, TX, USA | SMTA

Resumes:

SMT Engineering Technician

Wayland, MI, 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: Intermountain (Boise) Expo & Tech Forum - April 17

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: SMTA Webtorial: Higher Density Packaging: Manufacturability & Reliability - June 9

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

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

Used PCB Assembly Equipment - CE Exchange

HDMag High-Magnification Visual Inspection Station

Software for PCB Manufacturing - Unisoft

Custom SMT Equipment Nozzles - Count on Tools

Used SMT Equipment

BTU Pyramax - Reflow Oven, lower power cost, lower gas usage

PCB Cleaning products - Zestron

SmartDry Intelligent Dry Storage

ii-Feed tape feeding solution for Europlacer machines

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

Choose an Oven for Your Reflow Needs

3D SMT AOI - Mirtec

SP700avi inline smt screen printer - Speedprint

Quantum Series In-Line, Large-Format Fluid Dispensing for SMT, PCB, and MEMS - Nordson Asymtek

AIM M8 no-clean solder paste

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