Design for Testability (DFT) to Overcome Functional Board Test Complexities in Manufacturing Test
Published: |
June 20, 2018 |
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.... |
|
|
|
|
|
|
You must be a Company Information:
More articles from A.T.E. Solutions, Inc. »
- Jul 08, 2020 - Creating Reusable Manufacturing Tests for High-Speed I/O with Synthetic Instruments
- Apr 14, 2016 - Causes and Costs of No Fault Found Events
- See all SMT / PCB technical articles from A.T.E. Solutions, Inc. »
More SMT / PCB assembly technical articles »
- Apr 07, 2026 - Field Trials and Baking Studies of Ultra-Low Asparagine, Genome Edited (CRISPR/Cas9) and Mutant (TILLING) Wheat | SMTnet
- Apr 01, 2026 - Vehicles of change: two exceptional deposits of destroyed chariots or wagons from Late Iron Age Britain | SMTnet
- Mar 17, 2026 - Grey wolf optimization for color quantization | SMTnet
- Mar 17, 2026 - Large Surface‐Rupturing Earthquakes and a >12 kyr, Open Interseismic Interval on the Tintina Fault | SMTnet
- Mar 17, 2026 - Artificial intelligence (AI) applications for marketing: A literature-based study | SMTnet
- Browse Technical Library »
Design for Testability (DFT) to Overcome Functional Board Test Complexities in Manufacturing Test article has been viewed 1930 times
davef
June 26, 2018
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....