Semiconductor device manufacturing: process – Chemical etching – Vapor phase etching
Reexamination Certificate
2005-04-21
2010-06-22
Everhart, Caridad M (Department: 2895)
Semiconductor device manufacturing: process
Chemical etching
Vapor phase etching
C438S739000, C257S416000, C257S798000, C257SE29001, C257SE21486, C257SE21590
Reexamination Certificate
active
07741227
ABSTRACT:
A process for structuring at least one layer as well as an electrical component with structures from the layer are described.The invention states a process to generate at least one structured layer (10A), wherein a mask structure (20) with a first (20A) and second structure (20B) is generated on a layer (10) which is present on a substrate (5). Through this mask structure (20), the first layer (20A) is transferred onto the layer (10) using isotropic structuring processes, and the second structure (20B) is transferred onto the layer (10) using anisotropic structuring processes. The process as per the invention permits the generation of two structures (20A,20B) in at least a single layer while using a single mask structure.
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Hackenberger Maja
Voelkl Johannes
Zeisel Roland
Everhart Caridad M
Fish & Richardson P.C.
Osram Opto Semiconductors GmbH
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