Invention Grant
- Patent Title: Method to dynamically tune precision resistance
- Patent Title (中): 动态调整精度电阻的方法
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Application No.: US14220475Application Date: 2014-03-20
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Publication No.: US09048171B2Publication Date: 2015-06-02
- Inventor: Steven R. Soss , Andreas Knorr
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L49/02
Abstract:
A precision resistor is formed with a controllable resistance to compensate for variations that occur with temperature. An embodiment includes forming a resistive semiconductive element having a width and a length on a substrate, patterning an electrically conductive line across the width of the resistive semiconductive element, but electrically isolated therefrom, and forming a depletion channel in the resistive semiconductive element under the electrically conductive line to control the resistance value of the resistive semiconductive element. The design enables dynamic adjustment of the resistance, thereby improving the reliability of the resistor or allowing for resistance modification during final packaging.
Public/Granted literature
- US20140203405A1 METHOD TO DYNAMICALLY TUNE PRECISION RESISTANCE Public/Granted day:2014-07-24
Information query
IPC分类:
