Patent ID: 7807544
Filing Date: 2010-10-05
Classification: H01L,Y02E,Y02P,Y10S

Abstract:
1. A method for fabricating an integrated circuit on a semiconductor substrate, the method comprising: aligning a mask between an extrusion head and the semiconductor substrate such that a first peripheral portion of the mask is positioned over a first peripheral area of the semiconductor substrate, a second peripheral portion of the mask is positioned over a second peripheral area of the semiconductor substrate, and a central opening defined between the first and second peripheral portions is positioned over a central area of the semiconductor substrate disposed between the first and second peripheral areas; moving the extrusion head relative to the semiconductor substrate such that a plurality of outlet orifices defined in the extrusion head are moved from a first position over the first peripheral area to a second position over the second peripheral area, whereby such the plurality of outlet orifices pass over the central area of the semiconductor substrate; and extruding a material such that said material is continuously extruded through the plurality of outlet orifices while the extrusion head is moved from the first position to the second position, whereby the extruded material forms a plurality of elongated extruded structures on the central area of the semiconductor substrate.