发明授权
- 专利标题: Magnetic random access memory using bipolar junction transistor, and method for fabricating the same
- 专利标题(中): 使用双极晶体管的磁性随机存取存储器
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申请号: US10127364申请日: 2002-04-22
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公开(公告)号: US06657270B2公开(公告)日: 2003-12-02
- 发明人: Chang Shuk Kim , Hee Bok Kang , Sun Ghil Lee
- 申请人: Chang Shuk Kim , Hee Bok Kang , Sun Ghil Lee
- 优先权: KR2001-28132 20010522
- 主分类号: H01L2982
- IPC分类号: H01L2982
摘要:
A magnetic random access memory (MRAM) is disclosed. The MRAM may include a semiconductor substrate serving as a base of a bipolar junction transistor; an emitter and a collector of the bipolar junction transistor provided at an active region of the semiconductor substrate; an MTJ cell positioned at the active region between the emitter and the collector, separately from the emitter and the collector by a predetermined distance; and a word line provided on the MTJ cell. The MRAM may also include a bit line contacting the collector; and a reference voltage line contacting the emitter. As a result, the constitution and fabrication process of the MRAM are simplified to improve productivity and properties of the device.
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