Electrode component with electrode layers formed on intermediate layers

摘要

An electrode component with electrode layers formed on intermediate layers includes a ceramic substrate, two intermediate layers formed on two opposite surfaces of the ceramic substrate, two electrode layers respectively formed on the two intermediate layers, two lead wires respectively connected to the electrode layers, and an insulating layer enclosing the ceramic substrate, the intermediate layers, the electrode layers, and portions of the two lead wires. The intermediate layer formed between the ceramic substrate and the electrode layer replaces the fabrication means for conventional silver electrode layer to provide good binding strength between the ceramic substrate and the electrode layer. Besides same electrical characteristics for original products, the electrode component can get rid of the use of precious silver in screen printed silver electrode and avoid pollution caused by evaporation and thermal dissolution of organic solvent while lowering the ohmic contact resistance between the electrode layer and the ceramic substrate.

主权项

1. An electrode component with intermediate layers, comprising:
a ceramic substrate having two opposite surfaces; two intermediate layers respectively formed on the two opposite surfaces of the ceramic substrate, each intermediate layer formed by a metal material selected from one of nickel, vanadium, chromium, aluminum, and zinc or a combination thereof; two electrode layers respectively formed on the two intermediate layers; two pins, each pin having a top portion connected to one of the two electrode layers; and an insulating layer enclosing the ceramic substrate, the two electrode layers, and the top portions of the two pins, wherein the electrode layers are formed by a spray-forming process, and a thickness of each electrode layer is in a range of 5 to 20 μm.