Introduction: In 1983, Asahi Chemical Industry Co. and Asahi Microsystems Inc. jointly established Asahi Kasei Microsystems, Inc., abbreviated as AKM Company, in Japan. Since its establishment, AKM has been committed to developing large-scale semiconductor integrated circuits in the fields of information and communication. AKM has gained a reputation in the industry by successfully developing mixed signal integrated circuits based on CMOS, which has greatly reduced the cost of producing such integrated circuits and demonstrated excellent application prospects.