SEMICONDUCTOR DEVICE AND MANUFACTURE THEREOF

摘要

A semiconductor device production method of the invention includes a step of packaging a semiconductor chip with a transparent material (14) which penetrates a laser beam (13) within a predetermined range of wavelength having sufficient energy to cut part of an adjustable circuit (12), and a step of trimming part of the adjustable circuit (12) to obtain a target value of electric properties for the adjustable circuit by focusing, after the packaging step, the laser beam (13) onto the adjustable circuit from an upper surface of the semiconductor chip through the transparent material.