Invention Grant
- Patent Title: Three dimensional structure memory
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Application No.: US12405239Application Date: 2009-03-17
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Publication No.: US08933570B2Publication Date: 2015-01-13
- Inventor: Glenn J. Leedy
- Applicant: Glenn J. Leedy
- Applicant Address: US CA Carmel
- Assignee: Elm Technology Corp.
- Current Assignee: Elm Technology Corp.
- Current Assignee Address: US CA Carmel
- Agency: Useful Arts IP
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L27/108 ; H01L21/768 ; H01L27/06 ; G11C5/02 ; H01L25/065 ; G11C5/06 ; H01L23/522

Abstract:
A Three-Dimensional Structure (3DS) Memory allows for physical separation of the memory circuits and the control logic circuit onto different layers such that each layer may be separately optimized. One control logic circuit suffices for several memory circuits, reducing cost. Fabrication of 3DS memory involves thinning of the memory circuit to less than 50 μm in thickness and bonding the circuit to a circuit stack while still in wafer substrate form. Fine-grain high density inter-layer vertical bus connections are used. The 3DS memory manufacturing method enables several performance and physical size efficiencies, and is implemented with established semiconductor processing techniques.
Public/Granted literature
- US20090219772A1 Three dimensional structure memory Public/Granted day:2009-09-03
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