Patent ID: 8247289
Filing Date: 2012-08-21
Classification: H01G,H01L,H05K

Abstract:
1. A manufacturing method of a capacitor, comprising: a lower electrode forming step of forming a lower electrode layer on a substrate; a dielectric layer forming step of forming a dielectric layer on said lower electrode layer, said dielectric layer formed in said capacitor; a first layer forming step of forming a first layer of an upper electrode on said dielectric layer; an opening portion forming step of forming an opening portion in said first layer; a dielectric layer opening portion forming step of, after formation of said first layer and said opening portion in said first layer and before formation of any of other layers on said dielectric layer of said opening portion, forming an opening portion in said dielectric layer via said opening portion of said first layer by using said first layer as an etching mask, said opening portion in said dielectric layer reaching from said first layer to said lower electrode layer; and a second layer forming step of forming, after formation of said opening portion in said dielectric layer, a second layer of said upper electrode on said first layer of said upper electrode, on said opening portion of said first layer, and on said opening portion of said dielectric layer, said second layer formed on and in contact with said first layer at a periphery of said opening portion of said dielectric layer, without forming another insulating layer or dielectric layer on said opening portion of said dielectric layer, wherein said dielectric layer forming step includes coating a dielectric and burning said coated dielectric.