Etching a substrate: processes – Forming or treating an article whose final configuration has...
Reexamination Certificate
2005-08-30
2010-02-16
Alanko, Anita K (Department: 1792)
Etching a substrate: processes
Forming or treating an article whose final configuration has...
C216S036000, C216S067000, C216S088000, C216S095000, C216S099000, C977S887000, C977S888000
Reexamination Certificate
active
07662299
ABSTRACT:
A method for forming a template useful for nanoimprint lithography comprises forming at least one pillar which provides a topographic feature extending from a template base. At least one conformal pattern layer and one conformal spacing layer, and generally a plurality of alternating pattern layers and spacing layers, are formed over the template base and pillar. A planarized filler layer is formed over the pattern and spacing layers, then the filler, the spacing layer and the pattern layer are partially removed, for example using mechanical polishing, to expose the pillar. One or more etches are performed to remove at least a portion of the pillar, the filler, and the spacing layer to result in the pattern layer protruding from the spacing layer and providing the template pattern.
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Abatchev Mirzafer
Subramanian Krupakar M.
Alanko Anita K
Micro)n Technology, Inc.
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