If you are my age, you know that the most influential book in that era on VLSI design was Carver Mead and Lynn Conway’s textbook, blah VLSI blah. Nobody can remember exactly what its title was, it was just referred to as Mead and Conway. In my opinion it was the most influential book on semiconductor design ever. It opened up VLSI… Read More




What Applications Implement Best with High Level Synthesis?
RTL coding using languages like Verilog and VHDL have been around since the 1980’s and for almost as long a time we’ve been hearing about High Level Synthesis, or HLS that allows an SoC designer to code above the RTL level where you code at the algorithm level. The most popular HLS languages today are C, C++ and SystemC.… Read More
Epitaxy: Not Just For PMOS Anymore
At Semicon I met with Applied Materials to learn about epitaxy. This is when a monocrystalline film is grown on the substrate which takes on a lattice structure that matches the substrate. It forms a high purity starting point for building a transistor and is also the basis of the strain engineering in a modern process.
Since holes… Read More
System Reliability Audits
How reliable is your cell-phone? Actually, you don’t really care. It will crash from time to time due to software bugs and you’ll throw it away after two or three years. If a few phones also crash due to stray neutrons from outer space or stray alpha particles from the solder balls used in the flip-chip bonding then nobody… Read More
From Layout Sign-off to RTL Sign-off
This week, I had a nice opportunity meeting Charu Puri, Corporate Marketing and Sushil Gupta, V.P. & Managing Director at Atrenta, Noida. Well, I know Sushil since 1990s; in fact, he was my manager at one point of time during my job earlier than Cadence. He leads this large R&D development centre, consisting about 200 people… Read More
Any MIPI CSI-3 Host IP Solution for SoCs Interfacing with Sensors?
For those taking a quick look at the various MIPI Interface specification, the first reaction is to realize that they will have to look at MIPI more closely, and that it will take them longer than expected to make sure they really understand the various specifications! Let’s start with the PHY. One specification defines the D-PHY,… Read More
Semicon: Multiple Patterning vs EUV, round #2
Round #1 was here.
In the EUV corner were Stefan Wurm of Sematech (working on mask issues mostly) and Skip Miller of ASML who are the only company making EUV steppers (and light sources, they acquired Cymer).
You may know that the biggest issue in EUV is getting the source brightness to have high enough energy that an EUV stepper has … Read More
Constrain all you want, we’ll solve more
EDA tool development is always pushing the boundaries, driven in part by bigger, faster chips and more complex IP. For several years now, the trend has been developing tools that spot problems faster without waiting for the “big bang” synthesis result that takes hours and hours. Vendors, with help from customers, are tuning tools… Read More
Metastability Starts With Standard Cells
Metastability is a critical SoC failure mode that occurs at the interface between clocked and clockless systems. It’s a risk that must be carefully managed as the industry moves to increasingly dense designs at 28nm and below. Blendics is an emerging technology company that I have been working with recently, their MetaACE… Read More
The FPGA Blob is Coming…
I never understood when I was a kid how ‘the Blob’ could actually catch someone but it sure did. It caught the unsuspecting, the off guard. I mean you’d have time for a soda and shower if you saw it on your road. And no, your manager is not the Blob; don’t think like that, it’s always his boss. The blob comes to consume the worker who was unaware… Read More
Memory Innovation at the Edge: Power Efficiency Meets Green Manufacturing