Patent ID: 8848495
Filing Date: 2014-09-30
Classification: G02B,G11B

Abstract:
1. A method for providing localized annealing to a plasmon generator of a thermally assisted magnetic recording (TAMR) head that is formed on a slider, comprising: (a) providing an optical system with a stacked structure that comprises: (b) attaching a first lead to a back end portion of the first PG to form a positive terminal, and attaching a second lead to a back end portion of the second PG to form a negative terminal; (c) depositing an overcoat layer made of an insulation material on the slider; and (d) injecting a first current through the first lead that passes through the dual PG mirror image structure and exits through the second lead thereby causing resistive heating to locally anneal the rod-like portions of the first PG and second PG without substantially elevating a temperature in the back end portions or in adjacent regions of the optical system or TAMR head.