发明授权
US07439536B2 Phase change memory cell with tubular heater and manufacturing method thereof
有权
具有管状加热器的相变存储单元及其制造方法
- 专利标题: Phase change memory cell with tubular heater and manufacturing method thereof
- 专利标题(中): 具有管状加热器的相变存储单元及其制造方法
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申请号: US11398858申请日: 2006-04-06
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公开(公告)号: US07439536B2公开(公告)日: 2008-10-21
- 发明人: Fabio Pellizzer , Enrico Varesi , Agostino Pirovano
- 申请人: Fabio Pellizzer , Enrico Varesi , Agostino Pirovano
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 优先权: EP05102811 20050408
- 主分类号: H01L47/00
- IPC分类号: H01L47/00
摘要:
A phase change memory cell includes a phase change region of a phase change material, a heating element of a resistive material, arranged in contact with the phase change region and a memory element formed in said phase change region at a contact area with the heating element. The contact area is in the form of a frame that has a width of sublithographic extent and, preferably, a sublithographic maximum external dimension. The heating element includes a hollow elongated portion which is arranged in contact with the phase change region.
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