Verifying Safety-Critical FPGA Designs With Fault Simulation


Supporting safety and assurance in designs, such as the chips used in industrial, aerospace and defense applications, requires more than traditional functional verification. Even if every bug is found and fixed before release, these applications have additional requirements for functional safety. They must be able to handle a variety of faults and induced errors, either by correcting them or by... » read more

Automation And Fault Simulation Of Safety-Critical FPGA Designs


Functional safety is a major challenge for field programmable gate arrays (FPGAs) and other semiconductor designs. Safety requirements go beyond traditional verification, which focuses on design bugs. Chips in safety-critical applications must be able to handle a variety of faults from sources such as temperature and power extremes, device aging, radiation, ionization and component failures. Ap... » read more

Improving Test Coverage And Eliminating Test Ecapes Using Analog Defect Analysis


While the analog and mixed-signal components are the leading source of test escapes that result in field failures, the lack of tools to analyze the test coverage during design has made it difficult for designers to address the issue. In this white paper, we explore the methodology for performing analog fault simulation of test coverage based on defect-oriented testing. In addition, we look at h... » read more

Verification Of Functional Safety (Part 2)


The automotive industry is grappling with a tradeoff between cost and safety. Safety is well understood in industries that are cost-insensitive, such as aerospace and medical, and the consumer industry has a long track record of driving down costs while increasing functionality. But can these two industries be brought together in a safe and effective manner to enable automobiles to achieve the ... » read more

Safety Plus Security: A New Challenge


Nobody has ever integrated safety or security features into their design just because they felt like it. Usually, successive high-profile attacks are needed to even get an industry's attention. And after that, it's not always clear how to best implement solutions or what the tradeoffs are between cost, performance, and risk versus benefit. Putting safety and security in the same basket is a ... » read more

Fault Simulation Reborn


Fault simulation, one of the oldest tools in the EDA industry toolbox, is receiving a serious facelift after it almost faded from existence. In the early days, fault simulation was used to grade the quality of manufacturing test vectors. That task was replaced almost entirely by [getkc id="173" comment="scan test"] and automatic test pattern generation (ATPG). Today, functional safety is cau... » read more

Analog Fault Simulation Challenges And Solutions


The test time for digital circuit blocks in ICs has greatly decreased in the last 20 years, thanks to scan-based design-for-test (DFT), automatic test pattern generation (ATPG) tools, and scan compression. These technologies have greatly reduced the number of test vectors applied by automatic test equipment (ATE) while maximizing the coverage of a wide range of defect types. But for analog c... » read more

Time To Pay The Piper


The Pied Piper of Hamelin is a German fable about a rat catcher who used his magic pipe to lure away rats. When he was not paid by the town, he used his pipe to lure away all of the town's children. I am not suggesting that exactly the same is true for the semiconductor industry and having not paid [getkc id="7" kc_name="EDA"], but I do not think they have paid enough and they will now have to ... » read more