Invention Grant
- Patent Title: Current control using thermally matched resistors
- Patent Title (中): 使用热匹配电阻的电流控制
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Application No.: US12790562Application Date: 2010-05-28
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Publication No.: US08129789B2Publication Date: 2012-03-06
- Inventor: Alexander Mayer , Guenter Herzele , Andreas Tschmelitsch , Matthias Kogler
- Applicant: Alexander Mayer , Guenter Herzele , Andreas Tschmelitsch , Matthias Kogler
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Slater & Matsil, L.L.P.
- Main IPC: H01L27/06
- IPC: H01L27/06

Abstract:
A semiconductor chip includes a semiconductor body having an upper surface. At least one power semiconductor component is integrated in the semiconductor chip together with other circuitry. Two or more vertically spaced metallization layers are arranged on the surface of the semiconductor body. The top metallization layer includes terminals establishing an electrical connection to load terminals of the power semiconductor component. A current measurement resistor is formed by a portion of the top metallization layer for sensing a load current of the power semiconductor component. A temperature measurement resistor is formed by a portion of at least one of the vertically spaced metallization layers, electrically isolated from current measurement resistor but thermally coupled thereto such that the current measurement resistor and the temperature measurement resistor have the same temperature.
Public/Granted literature
- US20110291741A1 Current Control Using Thermally Matched Resistors Public/Granted day:2011-12-01
Information query
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