MicroBT KF1978E Whatsminer M56S++ Samsung SF3E Process Flow Analysis
This report provides an analysis of the process flow and integration used in the manufacture of the MicroBT KF1978E ASIC die found in the WhatsMiner M56S++ cryptocurrency miner, the first known commercially available device to use gate-all-around (GAA) transistors. The ASIC miner die was fabricated using Samsung’s SF3E process, Samsung’s early version of their 3 nm process and the first high-volume manufactured GAA CMOS technology. The spreadsheet lists the hundreds of process flow steps required in its manufacture.
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