Patent ID: 8673756
Filing Date: 2014-03-18
Classification: B81B,B81C

Abstract:
1. A method of forming an out-of-plane electrode comprising: providing an oxide layer above an upper surface of a device layer; providing a first cap layer portion above an upper surface of the oxide layer; etching a first electrode perimeter defining trench extending through the first cap layer portion and stopping at the oxide layer; depositing a first material portion within the first electrode perimeter defining trench; depositing a second cap layer portion above the deposited first material portion; vapor releasing a portion of the oxide layer; depositing a third cap layer portion above the second cap layer portion after vapor releasing the portion of the oxide layer; etching a second electrode perimeter defining trench extending through the second cap layer portion and the third cap layer portion; depositing a second material portion within the second electrode perimeter defining trench, such that a spacer including the first material portion and the second material portion define a perimeter of an out-of-plane electrode, etching an etch stop perimeter defining trench extending through the first cap layer portion and the oxide layer; and depositing a third material portion within the etch stop perimeter defining trench, wherein vapor releasing a portion of the oxide layer comprises vapor releasing a portion of the oxide layer to a boundary defined by the third material portion.