Invention Application
- Patent Title: EMBEDDED MEMORY EMPLOYING SELF-ALIGNED TOP-GATED THIN FILM TRANSISTORS
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Application No.: US17563983Application Date: 2021-12-28
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Publication No.: US20220122983A1Publication Date: 2022-04-21
- Inventor: Yih Wang , Abhishek Sharma , Van Le
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: H01L27/108
- IPC: H01L27/108 ; H01L29/786 ; G11C11/408 ; G11C11/4091 ; G11C11/4094 ; H01L23/528 ; H01L49/02 ; H01L29/24 ; H01L29/66 ; G11C11/4074

Abstract:
Memory devices in which a memory cell includes a thin film select transistor and a capacitor (1TFT-1C). A 2D array of metal-insulator-metal capacitors may be fabricated over an array of the TFTs. Adjacent memory cells coupled to a same bitline may employ a continuous stripe of thin film semiconductor material. An isolation transistor that is biased to remain off may provide electrical isolation between adjacent storage nodes of a bitline. Wordline resistance may be reduced with a wordline shunt fabricated in a metallization level and strapped to gate terminal traces of the TFTs at multiple points over a wordline length. The capacitor array may occupy a footprint over a substrate. The TFTs providing wordline and bitline access to the capacitors may reside substantially within the capacitor array footprint. Peripheral column and row circuitry may employ FETs fabricated over a substrate substantially within the capacitor array footprint.
Information query
IPC分类: