MicroBT KF1978E Whatsminer M56S++ Samsung SF3E Process Flow Analysis
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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.
