700V PIC technology based on 0.35µm design for AC-DC power units

Abstract

We have established the 700V-class PIC technology based on 0.35μm design to provide power management ICs with higher performances and lower chip cost for the first time. And a 700V PWM-IC based on 0.35μm design, whose chip size can be reduced to 50% that of the IC based on 1.0μm design, is realized. This paper will report our developed 700V PIC technology with a PWM-IC product designed by this technology.