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A Study of PCB Insertion Loss Variation in Manufacturing Using a New Low Cost Metrology
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SMTnet Express June 27, 2012, Subscribers: 25268, Members: Companies: 8896, Users: 33235

Technical Library

A Study of PCB Insertion Loss Variation in Manufacturing Using a New Low Cost Metrology

First published in the 2012 IPC APEX EXPO technical conference proceedings.

by: Chu-tien Chia, Richard Kunze, David Boggs, and Margaret Cromley; Intel Corporation

Signal integrity analysis has shown that printed circuit board (PCB) insertion loss is a key factor affecting high speed channel performance. Determining and controlling PCB insertion loss have thus become critical production requirements for achieving multi-gigabit per second data rates. The traditional laboratory method of measuring PCB insertion loss is difficult to adopt in high volume manufacturing (HVM) environments because it requires expensive equipment while providing very slow throughput times. In this study we assessed the feasibility of implementing a simpler and lower cost process to measure insertion loss.

Through the use of a new metrology developed by Intel engineers, we demonstrated it is capable of quickly and accurately measuring PCB insertion loss and is suitable for use in an HVM environment. Applying this method to a first time study of insertion loss variation in HVM, we measured lot to lot loss variation to be ~±0.05 Decibels (dB)/inch at 4GHz.

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Events Calendar

SEMICON West 2012 | July 10-12, San Francisco, CA, USA | SEMI

Stencil & Misprint Cleaning Free Online Webinar | July 18 | ZESTRON Corporation

IPC Midwest Conference & Exhibition | August 22, Schaumburg, IL, USA | IPC

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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: Drop Test Performance of BGA Assembly Using SAC105Ti Solder Sphere - June 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: Conference: IPC Test & Inspection Online Symposium: Technology Review and Case Studies to Improve Processes, Yields and Costs - July 24

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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