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Design for Testability (DFT) to Overcome Functional Board Test Complexities in Manufacturing Test

Published:

May 20, 2021

Author:

Louis Y. Ungar

Abstract:

Manufacturers test to ensure that the product is built correctly. Shorts, opens, wrong or incorrectly inserted components, even catastrophically faulty components need to be flagged, found and repaired. When all such faults are removed, however, functional faults may still exist at normal operating speed, or even at lower speeds. Functional board test (FBT) is still required, a process that still relies on test engineers' understanding of circuit functionality and manually developed test procedures. While functional automatic test equipment (ATE) has been reduced considerably in price, FBT test costs have not been arrested. In fact, FBT is a huge undertaking that can take several weeks or months of test engineering development, unacceptably stretching time to market. The alternative, of selling products that have not undergone comprehensive FBT is equally, if not more, intolerable....

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Company Information:

A.T.E. Solutions, Inc.

The leading Test, ATE and Testability consulting and educational firm, offering various test related courses. Maintains the BestTest Directory, a test community knowledge base. Publishes The BestTest eNewsletter.

Los Angeles, California, USA

Repair / Rework, Service Provider, Test Services, Training Provider

  • Phone 310-822-5231
  • Fax 310-305-7703

A.T.E. Solutions, Inc. website

Company Postings:

(3) products in the catalog

(4) technical library articles

(3) news releases

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  • Jan 03, 2021 - Reflow Soldering Processes and Troubleshooting: SMT, BGA, CSP and Flip Chip Technologies | SMTnet
  • Dec 07, 2020 - A Non-destructive Approach to Identify Intermittent Failure Locations on Printed Circuit Cards (PCC) that have been Temperature Cycle Tested | ACI Technologies, Inc.
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