When I first started doing IC design back in 1978 we had hierarchical designs, and that was doing a relatively simple 16Kb DRAM chip with only 32,000 transistors using 6um (aka 6,000 nm) design rules. SoC designs today make massive use of hierarchy at all levels of IC design: IC Layout, transistor netlist, gate level netlist, RTL … Read More
Semiconductor companies are looking for ways to keep their business profitable by managing expenses on both the design and test side of electronic products, which is quite the challenge as the trends show increases in test pattern count and therefore test costs. Scan compression is a well-known technique first created over 15… Read More
I recently wrote an article about networks-on-chip (NoC) and how Systems-On-Chip integrated circuits (SoCs) are becoming increasingly more complex and heterogeneous in nature. While researching for that article I came upon a new micro-site by Dassault Systemes that goes into great detail about the operational challenges… Read More
I first heard about requirements management back in 1995 while marketing a graphic HDL entry tool for an EDA vendor, and it sounded like a very useful automation approach, however our team quickly discovered that there were too many different vendors for requirements management, so there could be no simple way to integrate with… Read More
I got really involved in testability back at CrossCheck in the 1990’s when they designed a way for Gate Arrays to have 100% observability without any Design For Test (DFT) requirements on designers. The Japanese Gate Array companies loved this approach and their customers enjoyed the highest test coverage without being… Read More
SemiWiki blogger Eric Esteve does an excellent job writing about all of the semiconductor IP available, and the popularity of IP is only growing more each year. Here’s a projection from IBS about semiconductor IP showing revenues of $4.7B by 2020:
Analyst Gary Smith divides IP into three broad categories: Functional, Foundation… Read More
Software engineers and firmware designers can find bugs, update their code and re-distribute to the users. In the consumer electronics world this means that my smart phone apps get updated, and my Android OS gets updated on a somewhat regular basis, however on the hardware side the design and verification of an SoC must be close … Read More
Earlier this month I blogged about Power Management Policies for Android Devices, so this blog is part two in the series and delves into the details of using ESL-level tools for simulation and analysis. The motivation behind all of this is to optimize a power management system during the early design phase, instead of waiting until… Read More
My Samsung Galaxy Note 2 phone lasts about 1.5 days on a single battery charge, thanks in part to the clever power conservation approaches like when the screen is automatically dimmed then turned off after no activity. Mobile phones and many other battery-powered devices used today all need power-saving designs, which then means… Read More
I’ll never forget debugging my first DRAM chip at Intel, peering into a microscope and watching the aluminum interconnect actually bubble and dissolve as the voltage was increased, revealing the destructive effects of Electromigration (EM) failure. That was back in 1980 using 6 um, single level metal technology, so imagine… Read More
