Viewing profile — TanjB

No, this is panels from which interposers will be made. Which are now larger than chips and rectangular, so wasted edges from a 300mm wafer are high. The proposed size is much larg…

MIPS had load const to high or low half. More that 40 years ago Transputer had shift-and-load 8 bit constants. Lots of ancient precedents for rare big constants.

Interesting idea. Effectively moving the extra decode stage in front of the Icache, making the Icache a bit like a CISC trace/microOp cache. On a 512b line you would add 32 bits to…

When Moore wrote in 1965, commercial use of MOS was 10 years in the future and Dennard scaling would not become widely understood and stirring interest in CMOS until 15 years in th…

DRAM is not greatly affected by radiation, because the capacitors are large structures relative to radiation events. SRAM is affected, which is why SRAM arrays should always use SE…

Those cell sizes are theoretical anyway. They do exist, but on sample chips optimized for SRAM. If you design a chip and select an IP macro for SRAM the density you actually get ma…

Nice idea, but I honestly don't think it has much value for study. It was a solution to a problem which is no longer important, and what impressed David (and was fun for me) was im…

TeX was beautiful. Both the algorithms (it was a masterwork on typesetting, still a good reference for anyone doing text layout) and the book.

Hi David, thanks for the kind words. I still have the source for that I think, it was written around 1984 originally for a project of my own, then sold to Logitech, Zorland, and Bo…

Memory fail. No ECC, uses DDR4 instead of LPDDR4x (which has a 1-bit ECC and superior bandwidth) which the Tiger Lake CPUs would support.

Apple is probably paying closer to $20k per wafer, including test and packaging. There have been leaks on pricing in the industry, leading edge process is expensive. Even at 50M ch…

Ironic. CMP was developed and perfected at IBM, who used it to make complex low volume products. Excellent insight. CMP and damascene metal (guess who!) really kicked CMOS into top…

Some of the issues in the original paper are real (except the hologram where they have transformed marketing hype for stereo images into a real expectation of transmitting hologram…