Patent ID: 7234237

Claim:
Method for producing a protective cover for a device, wherein a substrate is provided that includes the device, the method including: (a) creating a sacrificial structure on the substrate, wherein the sacrificial structure comprises a first portion covering a first area of the substrate including the device and a second portion extending from the first portion into a second area of the substrate including no device; (b) depositing a first cover layer enclosing the sacrificial structure such that the second portion of the sacrificial structure is at least partially exposed; (c) removing the sacrificial structure; and (d) closing a cavity formed by the removal of the sacrificial structures, wherein step (a) includes: (a.1) applying a photoresist layer on the substrate; (a.2) structuring the photoresist layer to expose the first area completely and the second area of the substrate partially; and (a.3) growing sacrificial material on the exposed areas of the substrate.