Patent ID: 6444504
Filing Date: 2002-09-03
Classification: H01L

Abstract:
A method of manufacturing a multilayer ZnO polycrystalline diode comprising the steps of:(a) preparing a plurality of oxide additives selected from the group consisting of Bi2O3, Mn3O4, Co3O4, Sb2O3, Fe2O3, and Nb2O5; (b) homogenizing the plurality of oxide additives with ZnO; (c) forming a plurality of polycrystalline layers, each having a thickness of approximately 20 to 60 microns; (d) printing an inner electrode on each polycrystalline layer; (e) forming a compact block with the polycrystalline layers; (f) cutting the compact block into a plurality of chips; (g) scorching and sintering the plurality of chips; (h) forming a plurality of outer electrodes; (i) scorching the outer electrodes; and (j) placing at least two of the outer electrodes on each chip.