Electronics and Semiconductors

Presto Engineering’s Extensive Test Capabilities Enable Parallel Testing of Automotive Products, Faster Time to Market

20 November 2018

Automotive electronics testing is one of the most exacting of all test and qualification protocols before production release because of the safety and liability considerations. The AEC Q100 revisions, ZVEI and its French equivalent SIA for accelerated environment stress tests not only list the time or number of cycles that batches of samples have to be tested for, but ISO26262 also defines the set of mission profiles per product application in the car, and therefore potential associated risks and failure mechanisms to cover during the qualification. Each test takes a fixed amount of time, so it can typically take a year or more to run the battery of tests required for a new chip design, and it can be cumbersome to reach the actual FIT level required by the standard. This is because most test facilities only have the capacity to run these tests one after the other.

However, Presto Engineering has announced that it has a fast track program that can cut test time down Some of Presto's temperature and humidity testing equipment. Source: Presto EngineeringSome of Presto's temperature and humidity testing equipment. Source: Presto Engineeringfrom a year to as little as four months. This is possible because Presto has the overall oven capacity to run the tests in parallel rather than one after the other, and localized production test cells for read-outs of intermediate chip characteristics during the qualification protocol.

“Time to market with a new product gives a company a vital competitive edge. Indeed, Safe Launch ASIC adoption in the Automotive industry requires more and more to re-qualify ASICs that are already JEDEC compliant but not against zero defect readiness program imperatives,” said Presto’s Chief Operation Officer Cédric Mayor. “Now, instead of having to wait a year to find out if a new product passes all the tests, we can fast track a product through all the tests in around four months by doing them simultaneously. If there is a problem, a test and reliability engineering cycle of only four months enables any issues to be resolved far faster than a cycle taking a year. This enables a fully qualified product to be brought to market months or possibly years faster than before.”

Presto’s Normandy Hub test and qualification facility was acquired by the company from NXP in 2010 along with its highly experienced staff. Presto has continued to add test equipment to create the largest independent test facility in Europe. A key part of this expertise is the in-house design and manufacture of the hardware needed for testing along with writing the testing control software specifically for products that need burn-in or special conditions such as optical stimulation or RF simulation during burn-in. This combination has enabled it to retain and grow its Tier 1 automotive customer base with international companies from around the world.

To contact the author of this article, email engineering360editors@globalspec.com

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