LSI Corporationstarted in 1980s and I had several encounters with it during my jobs in 1990s; not to forget the LSI chips I used to see in desktops and other electronic systems, and I’m happy to see LSI continuing today with more vigour having leadership position in storage and networking space. It provides highly reliable, high … Read More
Usually these brief history pieces are totally written by the SemiWiki blogger whose name is at the top. Often me since that was how I prototyped book chapters (buy). Well, OK, I did actually write this but it is completely cribbed from a presentation earlier this week by Wally Rhines who gave a sort of keynote at the announcement of… Read More
There’s a French EDA company named DOCEA Powerthat is uniquely focused on power analysis at the ESL level and I had a chance to interview Ridha Hamza to get new insight on ESL design challenges and their approach. Ridha started out doing SRAM design at STMicroelectornics in the 1990’s, moved into the emerging field … Read More
Integration is often an underrated attribute of good tools, compared to raw performance and technology. But these days integration is differentiation (try telling that to your calculus teacher). Today at DVCon Synopsys announced Verification Compiler which integrates pretty much all of Synopsys’s verification technologies… Read More
I’ve run SPICE circuit simulators since the 1970’s and they use transistor models where the device parameters are provided by the foundry. These transistor and interconnect parameters come from an engineer at the foundry who has characterized silicon with actual measurements or by running a TCAD (Technology CAD)… Read More
I have written this before, but I was a ModelSim snob. That has changed after trying Active-HDL from Aldec. I have no plans on going back to ModelSim. You ask why? Well astute reader, great question. Unfortunately these blogs are text limited and there is no way to write about all the bells and whistles of Active-HDL. So before I continue,… Read More
Traditionally logic devices built on top of thin-film-transistors (TFTs) have used one type of device, either an NMOS a-Si: TFT (hydrogenated amorphous silicon) or a PMOS organic device. Recently a-Si:H and pentacene PMOS TFTs have been integrated into complementary logic structures similar to CMOS. This, in turn, creates… Read More
Digital hardware has a habit of deciding – based on the bias and behavior of transistors – to drive outputs to a 0, or a 1, or if commanded a high-impedance Z state. SystemVerilog recognizes a fourth state: X, the “unknown” state a simulator has trouble inferring.
Simulators have a choice. Under X-optimism, they can convert the unknown… Read More
Speaking from experience, it is very difficult to get an OEM customer to talk about how they actually use standards and vendor products. A new white paper co-authored by Broadcom lends insight into how a variety of technologies combine in a flow from IP block simulation verification with assertions to complete SoC emulation with… Read More
In one of my favorite movies, Brad Pitt utters the only question that matters in baseball or technology management in the face of uncertainty: “Okay, good. What’s the problem?” Not surprisingly in that scene, as the question circles the table of experts used to doing things the old way, not a single one can answer it correctly in the… Read More
