Planar cavity mems and related structures, methods of manufacture and design structures
AssigneeInternational Business Machines Corporation
InventorsAnthony K. Stamper, John G. Twombly
Life of this patent
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Abstract
A method of forming at least one Micro-Electro-Mechanical System (MEMS) includes patterning a wiring layer to form at least one fixed plate and forming a sacrificial material on the wiring layer. The method further includes forming an insulator layer of one or more films over the at least one fixed plate and exposed portions of an underlying substrate to prevent formation of a reaction product between the wiring layer and a sacrificial material. The method further includes forming at least one MEMS beam that is moveable over the at least one fixed plate. The method further includes venting or stripping of the sacrificial material to form at least a first cavity.
Claims16
A structure, comprising:
- at least one fixed plate;
- an insulator layer covering the at least one fixed plate;
- and
- a TiN/TiAl3 layer between the at least one fixed plate and the insulator layer,
- wherein the insulator layer has a tapered profile.
Dependencies are inferred from the claim text.