Fujikoshi Machinery
A Nagano-based maker of lapping and polishing machines, including double-side lapping and polishing machines that set the flatness and thickness uniformity of silicon wafers.
不二越機械工業・Wafer manufacturing equipment・Last updated: October 27, 2026
Overview
Fujikoshi Machinery is headquartered in Nagano. It specializes in lapping and polishing machines and supplies double-side and single-side machines for silicon wafers.
These machines work on the bare wafer, which is a different stage from the CMP tools that planarize layers during chipmaking. The company also applies the technology to other precision parts.
Business: Lapping and polishing machines for silicon wafers
Why it matters
- Lithography focus margins depend on wafer flatness, which is largely set by double-side polishing.
- Lapping removes saw damage after slicing, and polishing then produces the mirror surface.
Main products
- •Double-side lapping machines
- •Double-side polishing machines
- •Single-side polishers
Sites in Japan
Head officeHeadquarters
Nagano, Nagano