Invention Grant
- Patent Title: Memory cell including unidirectional gate conductors and contacts
- Patent Title (中): 存储单元包括单向栅极导体和触点
-
Application No.: US13810728Application Date: 2011-07-20
-
Publication No.: US08947912B2Publication Date: 2015-02-03
- Inventor: Benton H. Calhoun , Randy W. Mann
- Applicant: Benton H. Calhoun , Randy W. Mann
- Applicant Address: US VA Charlottesville
- Assignee: University of Virginia Licensing & Ventures Group
- Current Assignee: University of Virginia Licensing & Ventures Group
- Current Assignee Address: US VA Charlottesville
- Agency: Kilpatrick Townsend & Stockton LLP
- International Application: PCT/US2011/044691 WO 20110720
- International Announcement: WO2012/012538 WO 20120126
- Main IPC: G11C11/00
- IPC: G11C11/00 ; H01L21/70 ; G11C11/412 ; H01L27/11

Abstract:
Memory cells are described with cross-coupled inverters including unidirectional gate conductors. Gate conductors for access transistors may also be aligned with a long axis of the inverter gate conductor. Contacts of one inverter in a cross-coupled pair may be aligned with a long axis of the other inverter's gate conductor. Separately formed rectangular active regions may be orthogonal to the gate conductors across pull up, pull down and access transistors. Separate active regions may be formed such that active regions associated with an access transistor and/or a pull up transistor are noncontiguous with, and narrower than, an active region associated with a pull down transistor of the inverter. The major components of 6T SRAM, and similar, memory cell topologies may be formed essentially from an array of rectangular lines, including unidirectional gate conductors and contacts, and unidirectional rectangular active regions crossing gate conductors of the inverters and access transistors.
Public/Granted literature
- US20130242645A1 Memory Cell Public/Granted day:2013-09-19
Information query