发明申请
- 专利标题: Electronic device and wiring with a current induced cooling effect, and an electronic device capable of converting a temperature difference into voltage
- 专利标题(中): 具有电流感应冷却效果的电子设备和布线以及能够将温差转换为电压的电子设备
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申请号: US11221863申请日: 2005-09-09
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公开(公告)号: US20060056113A1公开(公告)日: 2006-03-16
- 发明人: Akio Fukushima , Hitoshi Kubota , Atsushi Yamamoto
- 申请人: Akio Fukushima , Hitoshi Kubota , Atsushi Yamamoto
- 专利权人: National Institute of Advanced Industrial Science and Technology
- 当前专利权人: National Institute of Advanced Industrial Science and Technology
- 优先权: JP2004-265962 20040913; JP2005-195574 20050704
- 主分类号: G11B5/33
- IPC分类号: G11B5/33 ; G11B5/127
摘要:
Localized temperature increases inside integrated circuits due to heating at operation are prevented or controlled by electronic devices or wirings with CPP (current-perpendicular-to-plane) structure which has a current cooling effect. The CPP structure refers to a structure comprising a columnar electrically conductive portion and an insulator portion surrounding the conductive portion. The columnar portion is formed from the multilayered structure in a direction perpendicular to the plane of the layers, so as to allow a current to flow from an upper layer to a lower layer (or vice versa). The cooling effect is induced by current at the interface (or a plural of interfaces) of appropriately selected different kinds of materials (which are conductive substances in general, such as metals, semiconductors, and alloys thereof) in the columnar portion due to the Peltier effect when a current flows through the column. Temperature in minute range is detected by thermocouple with CPP structure. The thermocouple has two interfaces of different materials with a proper combination. When a temperature difference exists between two interfaces, a voltage which corresponds to product of the temperature difference and the Peltier coefficient at the interface is produced. In the same manner, the intensity of inferred can be also measured.
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