Method of producing self-supporting microstructures, thin flat parts or membranes, and utilization of microstructures produced by the method as resistance grids in a device for measuring weak gas flows
First Claim
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1. A method of producing self-supporting microstructures, thin flat parts, or membranes, which comprises:
- a) providing a supporting frame with at least one opening;
b) applying an adhesive film to the supporting frame such that the adhesive film spans the opening in the supporting frame flatly;
c) applying an auxiliary layer to an underside of the adhesive film and adjacent regions of the supporting frame such that the auxiliary layer spans the opening in the supporting frame on one side flush with the supporting frame;
d) removing the adhesive film;
e) constructing component elements selected from the group consisting of microstructures, flat parts, and membranes on the common plane comprising the auxiliary layer and the supporting frame; and
f) removing the auxiliary layer formed in step c).
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Abstract
Firstly, a supporting frame is produced, whose opening is spanned by an auxiliary layer flush on one side. Following the production of microstructures, flat parts or membranes on the common plane defined by the auxiliary layer and the supporting frame, the auxiliary layer is removed, preferably by etching. In a preferred application, the self-supporting microstructures produced in accordance with the method of the invention are used as electrically heatable resistance grids in a device for measuring weak gas flows.
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Citations
21 Claims
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1. A method of producing self-supporting microstructures, thin flat parts, or membranes, which comprises:
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a) providing a supporting frame with at least one opening;
b) applying an adhesive film to the supporting frame such that the adhesive film spans the opening in the supporting frame flatly;
c) applying an auxiliary layer to an underside of the adhesive film and adjacent regions of the supporting frame such that the auxiliary layer spans the opening in the supporting frame on one side flush with the supporting frame;
d) removing the adhesive film;
e) constructing component elements selected from the group consisting of microstructures, flat parts, and membranes on the common plane comprising the auxiliary layer and the supporting frame; and
f) removing the auxiliary layer formed in step c). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification