Zoomed Response Surface Method for Automatic Design in Parameters Optimization of Low-Voltage Power MOSFET

Abstract

A new parameter optimization method using zoomed response surface (RS) is proposed for automatic design of low-voltage power MOSFET. Low-voltage MOSFET characteristics have been improved continuously considering with not only low power loss but also low cost to answer request to high-performance system. Complicated requirements lead long development schedule and low yield. Model-based design and machine learning are prospective method to answer the problem. However, reported methods require many simulation numbers (> 1000) for training to obtain high accuracy, and it is difficult to optimize parameters considering the process margin at the same time. This article shows a simple design method using zoomed RS. Five parameters were automatically designed, taking account to process margin with simulation number of 130 only.INDEX TERMS Field plate, power MOSFET, on-resistance, automatic design.

Automatic total performance design of low-voltage power MOSFETs using zoomed response surface method

“…Therefore, the zoomed RS method is a good choice for automatic device design considering also process margin. 29) This paper gives a demonstration of an automatic design of low-voltage power MOSFETs using the zoomed RS method. A case study of a 100 V-class FP-MOSFET design shows that five parameters can be designed automatically, taking into account the process margin with a simulation number of only 130.…”