Patent ID: 7595221
Filing Date: 2009-09-29
Classification: G02B,H01S

Abstract:
1. A method for creating a patterned device comprising the steps of: a) selecting a substrate having a top surface that is resistant to removal by at least one removal agent; b) forming a first step on the substrate, the first step having a top surface, where the first step and the substrate have common resistance to removal by at least one agent, where the first step has a top surface, two sidewalls and a front and back wall, and where the first step is formed from a second material deposited on the substrate; c) depositing a sacrificial layer having a top surface along the first step and the substrate, the sacrificial layer being removable by an agent to which the first step and the substrate share a common resistance; d) depositing a second step having a top surface on a user-definable portion of the sacrificial layer covering the top surface of the first step that has a common resistance to removal by at least one of the same agents as the first step; e) depositing a second layer on the top surfaces of each of a user-definable portion of the substrate, sacrificial layer and second step that shares a common resistance to removal by at least one of the same agents as the substrate, the first step and the second step; f) removing the second step; g) removing a user-definable portion of the sacrificial layer such that a gap is created between the second layer adhered to the substrate and the first step, wherein at least a portion of the sacrificial layer remains such that the second layer adhered to the substrate remains; and h) processing the substrate beneath the gap created between the remaining second layer adhered to the substrate and the first step.