Patent ID: 8962443
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. A method of forming a device having an airbridge on a substrate, the method comprising: forming a plated conductive layer of the airbridge over at least a photoresist layer on a portion of the substrate, the plated conductive layer defining a corresponding opening for exposing a portion of the photoresist layer; undercutting the photoresist layer to form a gap in the photoresist layer beneath the plated conductive layer at the opening; forming an adhesion layer on the plated conductive layer and the exposed portion of the photoresist layer, the adhesion layer having a break at a gap beneath the plated conductive layer; removing the photoresist layer and a portion of the adhesion layer formed on the exposed portion of the photoresist layer, the removing comprising etching the photoresist layer through the break in the adhesion layer; and forming an insulating layer on at least the adhesion layer, which enhances adhesion of the insulating layer to the plated conductive layer.