Patent ID: 9508474
Filing Date: 2016-11-29
CPC Classification: C23C,H01C

Claim Text:
1. A method for manufacturing an anticorrosive thin film resistor, comprising the following steps: (a) providing a thin film resistor comprising an aluminum oxide substrate, a first electrode section formed at one side of the aluminum oxide substrate, a second electrode section formed at one side of the aluminum oxide substrate that is distant from the first electrode section, and a resistance layer formed on the aluminum oxide substrate; (b) selecting one of silicon (Si) and tantalum (Ta) to serve as a film coating target; (c) mixing a reactive gas comprising one of oxygen and nitrogen in a discharge gas to conduct a reactive sputtering process with the film coating target; (d) controlling an operation temperature of the reactive sputtering process between 100° C.-500° C.; and (e) passivating the film coating target with the reactive gas so as to form an anticorrosive protection layer comprising a single chemical compound of the reactive gas and the film coating target on the resistance layer of the thin film resistor.