Patent ID: 7002841
Filing Date: 2006-02-21
Classification: B82Y,G11C,H01L

Abstract:
1. An MRAM comprising: a semiconductor substrate; a bipolar junction transistor formed on the semiconductor substrate; a bit line coupled to an emitter of the bipolar junction transistor; a magnetic tunneling junction layer coupled to the bipolar junction transistor; a word line coupled to the magnetic tunneling junction layer; a plate line coupled to the bipolar junction transistor so as to be spaced apart from the magnetic tunneling junction layer; and an interlayer dielectric formed between components of the MRAM, wherein the magnetic tunneling junction layer is coupled to a base and a collector of the bipolar junction transistor, the plate line is coupled to the collector, and an amplifying unit for amplifying a signal while data is read out from the magnetic tunneling junction layer is coupled to the bit line.