Sacrificial layer technique to make gaps in mems applications
First Claim
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1. A method comprising:
- over an area of a substrate, forming a plurality of three dimensional first structures;
following forming the first structures, conformally introducing a sacrificial material over the area of the substrate;
introducing a second structural material over the sacrificial material; and
removing the sacrificial material.
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Abstract
A method comprising over an area of a substrate, forming a plurality of three dimensional first structures; following forming the first structures, conformally introducing a sacrificial material over the area of the substrate; introducing a second structural material over the sacrificial material; and removing the sacrificial material. An apparatus comprising a first structure on a substrate; and a second structure on the substrate and separated from the first structure by an unfilled gap defined by the thickness of a removed film.
144 Citations
17 Claims
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1. A method comprising:
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over an area of a substrate, forming a plurality of three dimensional first structures;
following forming the first structures, conformally introducing a sacrificial material over the area of the substrate;
introducing a second structural material over the sacrificial material; and
removing the sacrificial material. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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over an area of a surface of a substrate, lithographically patterning a plurality of first structures, the plurality of first structures having a first dimension about the surface of the substrate and a second different dimension;
following forming the first structures, conformally introducing a sacrificial material layer over the area of the substrate;
forming second structures over the sacrificial material; and
removing the sacrificial material. - View Dependent Claims (9, 10, 11, 12, 13, 15, 16, 17)
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14. An apparatus comprising:
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a first structure on a substrate; and
a second structure on the substrate and separated from the first structure by an unfilled gap defined by the thickness of a removed film.
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Specification