Invention Application
- Patent Title: METHODS AND APPARATUSES FOR TEMPERATURE INDEPENDENT DELAY CIRCUITRY
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Application No.: US17813291Application Date: 2022-07-18
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Publication No.: US20220352882A1Publication Date: 2022-11-03
- Inventor: Zhiqi Huang , Weilu Chu , Dong Pan
- Applicant: MICRON TECHNOLOGY, INC.
- Applicant Address: US ID BOISE
- Assignee: MICRON TECHNOLOGY, INC.
- Current Assignee: MICRON TECHNOLOGY, INC.
- Current Assignee Address: US ID BOISE
- Main IPC: H03K5/134
- IPC: H03K5/134 ; G11C11/4076 ; G11C11/4093

Abstract:
Methods and apparatuses are provided for temperature independent resistive-capacitive delay circuits of a semiconductor device. For example, delays associated with ZQ calibration or timing of the RAS chain may be implemented that to include circuitry that exhibits both proportional to absolute temperature (PTAT) characteristics and complementary to absolute temperature (CTAT) characteristics in order to control delay times across a range of operating temperatures. The RC delay circuits may include a first type of circuitry having impedance with PTAT characteristics that is coupled to an output node in parallel with a second type of circuitry having impedance with CTAT characteristics. The first type of circuitry may include a resistor and the second type of circuitry may include a transistor, in some embodiments.
Public/Granted literature
- US11929749B2 Methods and apparatuses for temperature independent delay circuitry Public/Granted day:2024-03-12
Information query
IPC分类: