Invention Grant
- Patent Title: Memory including two access devices per phase change element
- Patent Title (中): 每个相变元件包含两个存取设备的存储器
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Application No.: US11651157Application Date: 2007-01-09
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Publication No.: US07652914B2Publication Date: 2010-01-26
- Inventor: Thomas Nirschl , Roger Cheek , Mark Lamorey , Ming-Hsiu Lee
- Applicant: Thomas Nirschl , Roger Cheek , Mark Lamorey , Ming-Hsiu Lee
- Applicant Address: US NC Cary US NY Armonk TW Hsin Chu
- Assignee: Qimonda North America Corp.,International Business Machines Corporation,Macronix International Co., Ltd.
- Current Assignee: Qimonda North America Corp.,International Business Machines Corporation,Macronix International Co., Ltd.
- Current Assignee Address: US NC Cary US NY Armonk TW Hsin Chu
- Agency: Dicke, Billig & Czaja, PLLC
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A memory includes a bit line and a phase change element. A first side of the phase change element is coupled to the bit line. The memory includes a first access device coupled to a second side of the phase change element and a second access device coupled to the second side of the phase change element. The memory includes a circuit for precharging the bit line and one of selecting only the first access device to program the phase change element to a first state and selecting both the first access device and the second access device to program the phase change element to a second state.
Public/Granted literature
- US20080165573A1 Memory including two access devices per phase change element Public/Granted day:2008-07-10
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