Patent ID: 6444506
Filing Date: 2002-09-03
Classification: H01L

Abstract:
A manufacturing method of a semiconductor device, comprising:forming a semiconductor film comprising silicon over a substrate; forming at least one semiconductor island by patterning said semiconductor film; scanning said at least one semiconductor island over said substrate, with a pulsed linear laser beam having an elongated cross section and a fixed oscillation frequency by moving the substrate in a direction perpendicular to an elongation direction of said cross section at a fixed speed in an atmosphere comprising a mixture gas of hydrogen and at least one gas selected from a group consisting of air, nitrogen, helium, and argon in a first chamber of an apparatus; and then forming an insulating film comprising at least silicon and nitrogen on said semiconductor island in a second chamber of said apparatus, and wherein said at least one semiconductor island is not exposed to the air outside of the apparatus between said scanning step and said forming step.