Patent ID: 6998699

Claim:
A bipolar transistor, comprising: a base; an emitter contact formed within the base; a base contact formed within the base; and a first wiring stack formed atop the emitter contact and a second wiring stack formed atop the base contact, wherein the second wiring stack includes at least one more wiring level than the first wiring stack, wherein the first wiring stack comprises a first contact atop the emitter contact and a first emitter wiring level atop the first contact, and wherein the second wiring stack comprises a second contact atop the base contact, a first base wiring level atop the second contact a first via containing a first conductive material atop the first base wiring level, and a second base wiring level atop the first via; a first dielectric atop the base, wherein the first dielectric layer comprises the first contact and the second contact; a second dielectric layer atop the first dielectric layer, wherein the second dielectric layer comprises the first emitter wiring level and the first base wiring level; a third dielectric layer atop the second dielectric layer, wherein the third dielectric layer comprises the first via; and a fourth dielectric layer atop the third dielectric layer, wherein fourth dielectric layer comprises the second base wiring level.