SMTA Releases New Industry-Wide Testability Guidelines

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Minneapolis -- Led by SMTA Testability Committee chair Louis Ungar, A.T.E. Solutions, the SMTA Testability Guidelines TP-101C were developed to present information to comprehensively test and accurately diagnose the complex circuitry produced in modern electronics manufacturing.

Considering the variety of issues currently associated with the subject of testability, it was decided the SMTA Testability Committee would be temporarily expanded to include specialized Task Forces, each with a designated leader and each concentrating on its own discipline. The work of the various Task Forces is featured as separate chapters, within a general format that is intended to assist the reader in dealing with the testability considerations that go into the design, development and test of a product. Each chapter begins with an introduction intended to put into perspective the enumerated guidelines that follow.

With Jim Arient of Test Coach Corp. as the Task Force leader, Chapter 1 presents Probing and Fixturing Guidelines. Luciano Cornelio of Teradyne headed the Vectorless Test and Fixturing Task Force for Chapter 2. Mike Early of Teradyne led the Automatic Optical Inspection (AOI) Task Force for Chapter 3. The X-ray Task Force was led by Amit Verma of Teradyne, and its work is contained in Chapter 4. Chapter 5 is the work of the Electrical Design Task Force, led by Gerry Adams, Dade Behring. The Boundary-Scan Task Force, led by Ray Dellecker of JTAG Technologies, produced Chapter 6, which includes the uses of IEEE-1149.1. Kenneth Parker, Agilent, was drafted to lead the Analog & Mixed Signal Task Force, focusing Chapter 7 on the new IEEE-1149.4. Chapter 8 is the work of the Built-in Self-test (BIST) Task Force, led by Louis Y. Ungar of A.T.E. Solutions Inc.

Finally, a glossary is provided, and a reference section is included for further research. Circuit complexity has increased tremendously in the short two-year span since the last guidelines were published, and the effort of revising the 2000 SMTA Testability Guidelines proved that a great deal has changed.

The new SMTA Testability Guidelines are 71 pages and available through the SMTA Bookstore for $25/$35 for SMTA members/non-members.

The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations. For more information, visit



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