Patent ID: 7638728
Filing Date: 2009-12-29
Classification: B23K,H01L,Y10S

Abstract:
1. A masking arrangement for processing a thin film sample comprising: a first section which includes at least one opaque area arranged in a first pattern, the first section is configured to receive at least one beam pulse thereon, and produce at least one first modified pulse when the at least one beam pulse is passed therethrough, the at least one first modified pulse including at least one first portion having a pattern that corresponds to the first pattern of the first section, wherein, when the first portion is irradiated on the sample, at least one first region of the sample is prevented from being completely melted throughout its thickness; and a second section associated with the first section, the second section including a further area arranged in a second pattern, the second section being configured to receive at least one further beam pulse thereon, and produce at least one second modified pulse when the at least one further beam pulse is passed therethrough, the at least one second modified pulse including at least one second portion having a pattern that corresponds to the second pattern of the second section, wherein, when the second portion is irradiated on the sample, at least one second region of the sample irradiated by the second portion is completely melted throughout its thickness, wherein when the first region is irradiated by the at least one second modified pulse, the second portion of the at least one second modified pulse completely melts the at least one first region throughout its thickness, wherein at least one of the first pattern and the second pattern comprises a pattern of point-type areas.