Attopsemi Technology was founded in June 2010 in Hsinchu, Taiwan by a team of semiconductor veterans with over 100 years of experience combined. We moved into the Si-Soft Business Center in March 2011.

Attopsemi office_building


Attopsemi™ develops state-of-art One-Time Programmable (OTP) IP cores. Our mission is to provide the best possible logic-compatible OTP IPs for all SoC integrations to save time and efforts spent across the semiconductor industry.

Our I-fuse™ OTP memory is the dream OTP technology that has the best aspects of OTP technologies without shortcoming. Our I-fuse™ provides OTP solutions from 0.7um to 7nm that offers high reliability, small size, high density, low power, scalable, wide temperature range (-55° to 300°), and high yield, over the competitive OTP technologies.

We have proven OTP IPs from 0.7um to 28nm CMOS and from multiple foundries for customer offerings—all based on the same proven fuse-based program mechanism.