Patent ID: 6380838
Filing Date: 2002-04-30
Classification: H01L

Abstract:
A semiconductor device comprising:(a) a semiconductor substrate; (b) elongated repair fuses formed on said substrate; said fuses being arranged in substantially parallel to each other at a pitch a; each of said fuses having a width b; (c) a layer formed to cover said fuses; said layer having an opening that exposes said fuses and that allows said fuses to receive a laser beam from the outside; said beam having a placement tolerance h for each of said fuses in said opening; said beam being designed to form an irradiation area with a diameter d for each of said fuses in said opening; said irradiation area for each of said fuses being arranged along a virtual zigzag shape in said opening; and (d) a relationship of d&GreaterEqual;a&GreaterEqual;(b+d2+h)â€ƒis established among the pitch a, the width b, and the placement tolerance h.