Patent ID: 6040224
Filing Date: 2000-03-21
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device having a microscopic region which is not damaged by laser-annealing, comprising the steps of:forming a first region which requires heating on a semiconductor substrate at a first temperature;forming a second region which should be protected from damage by not being heated to said first temperature on said first region, said second region having a first portion of a first width and a second portion having a width more than twice greater than that of said first portion, said second portion being integrally formed at least on one end of said first portion, wherein said width of said first portion is 0.2 .mu.m or smaller and a length of said first portion is 10 .mu.m or smaller; andion implanting selectively to said semiconductor substrate; andlaser-annealing said semiconductor substrate on which said first and second regions are formed, whereby the shape of said first and second portions protect said second region from damage during said annealing.