Patent ID: 7192788

Claim:
A manufacturing method of a semiconductor device, comprising the steps of: (a) sequentially depositing over a substrate made of a semiconductor substrate or an insulator substrate a first conductive film, a first insulating film and a second conductive film; (b) patterning the second conductive film to form an upper electrode; and (c) after the step (b), patterning the first conductive film to form a lower electrode and thereby forming a capacitor element including an upper electrode, a capacitor insulating film and a lower electrode, wherein the capacitor element and a bipolar transistor are formed over the substrate, the bipolar transistor being formed by a process comprising the steps of: (g1) forming a first conductivity type collector layer over the substrate; (g2) forming a second conductivity type base layer over the collector layer; (g3) forming a first conductivity type emitter layer over the base layer; (g4) forming an emitter electrode that electrically connects with the emitter layer over the emitter layer; (g5) etching the emitter layer; (g6) after the step of (g5), forming a base electrode that electrically connects with the base layer over the base layer; (g7) after the step of (g5), patterning the base layer to expose a first region of the collector layer; and (g8) in the first region, forming a collector electrode that electrically connects with the collector layer.