tag: reliability

3 Technologies That Will Challenge Test
By Ed Sperling - 08 Jun, 2021 - Comments: 0

As chips are deployed in more complex systems and with new technologies, it's not clear exactly what chipmakers and systems vendors will be testing. The standard tests for voltage, temperature and electrical throughput still will be needed, of course. But that won't be sufficient to ensure that sensor fusion, machine learning, or millimeter wave 5/6G will be functioning properly. Each of tho... » read more

Reliability Costs Becoming Harder To Track
By Ed Sperling And Susan Rambo - 08 Jun, 2021 - Comments: 0

Ensuring reliability in chips is becoming more complex and significantly more expensive, shifting left into the design cycle and right into the field. But those costs also are becoming more difficult to define and track, varying greatly from one design to the next based upon process node, package technology, market segment, and which fab or OSAT is used. As the number of options increases fo... » read more

Recalculating The Cost Of Test
By Ed Sperling - 11 May, 2021 - Comments: 0

The cost of test is rising. For decades, test was limited to a flat 2% of the cost of designing and manufacturing a chip. Today, no one is quite sure what that cost really is, and there doesn't seem to be any single formula for determining it. In some cases, there isn't even a sense of urgency to finding out. Several significant changes are occurring that make any formula difficult to cal... » read more

Testing Analog Circuits Becoming More Difficult
By Susan Rambo - 11 May, 2021 - Comments: 1

Foundries and packaging houses are wrestling how to control heat in the testing phase, particularly as devices continue to shrink and as thermally sensitive analog circuits are added into SoCs and advanced packages to support everything from RF to AI. The overriding problem is that heat can damage chips or devices under test. That's certainly true for digital chips developed at advanced node... » read more

Chasing Test Escapes In IC Manufacturing
By Anne Meixner - 11 May, 2021 - Comments: 0

The number of bad chips that slip through testing and end up in the field can be significantly reduced before those devices ever leave the fab, but the cost of developing the necessary tests and analyzing the data has sharply limited adoption. Determining an acceptable test escape metric for an IC is essential to improving the yield-to-quality ratio in chip manufacturing, but what exactly is... » read more

Circuit Reliability Verification For Automotive Electronics
By Matthew Hogan - 06 May, 2021 - Comments: 0

By Matthew Hogan and Dina Medhat In the automotive industry, reliability and high quality are key attributes for electronic automotive systems and controls. Naturally, they are particularly crucial when developing functional safety (FuSa) solutions, where inadequate performance or product failure can lead to injury or death. When it comes to safety-related automotive electronics, ISO 26262 p... » read more

Steep Spike For Chip Complexity And Unknowns
By Ed Sperling - 05 May, 2021 - Comments: 0

Cramming more and different kinds of processors and memories onto a die or into a package is causing the number of unknowns and the complexity of those designs to skyrocket. There are good reasons for combining all of these different devices into an SoC or advanced package. They increase functionality and can offer big improvements in performance and power that are no longer available just b... » read more

Putting Limits On What AI Systems Can Do
By Ed Sperling - 22 Apr, 2021 - Comments: 0

New techniques and approaches are starting to be applied to AI and machine learning to ensure they function within acceptable parameters, only doing what they're supposed to do. Getting AI/ML/DL systems to work has been one of the biggest leaps in technology in recent years, but understanding how to control and optimize them as they adapt isn't nearly as far along. These systems are generall... » read more

Next-Gen Design Challenges
By Ed Sperling - 20 Apr, 2021 - Comments: 0

As more heterogeneous chips and different types of circuitry are designed into one system, that all needs to be simulated, verified and validated before tape-out. Aveek Sarkar, vice president of engineering at Synopsys, talks with Semiconductor Engineering about the intersection of scale complexity and systemic complexity, the rising number of corners, and the reduced margin with which to buffe... » read more

6 Steps To Successful Board Level Reliability Testing
By Ansys - 07 Apr, 2021 - Comments: 0

For semiconductor manufacturers entering the automotive environment, the lack of universal qualifications standards often leads to inconsistent reliability expectations. The most efficient solution is to establish a robust and thorough BLR testing plan that is uniquely designed for a specific manufacturer validated by a broad range of industry experiences. 6 Steps to Successful Board Level R... » read more

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