Mitsui High-tec
A Kitakyushu-based maker of stamped and etched lead frames for IC and power semiconductor packages.
三井ハイテック・Materials・Last updated: October 23, 2026
Overview
Mitsui High-tec is headquartered in Kitakyushu, Fukuoka. It makes lead frames both by die stamping for volume production and by chemical etching for high-mix, low-volume products, for QFP and QFN packages and power semiconductors.
The company says it was the first in the world to succeed in making lead frames by stamping and the first to mass-produce high-pin-count QFPs with 100 to 240 pins.
Business: Lead frames
Why it matters
Lead frames remain the main package carrier for analog, discrete and power devices.
Main products
- •Stamped and etched lead frames (QFN, QFP, power semiconductors)
Sites in Japan
Head officeHeadquarters
Kitakyushu, Fukuoka
Products (1)
- QFN/QFP lead frames (stamped / etched) · Lead frames