Invention Grant
- Patent Title: Method and resulting capacitor structure for liquid crystal on silicon display devices
- Patent Title (中): 用于液晶显示器件的方法和电容器结构
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Application No.: US12259160Application Date: 2008-10-27
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Publication No.: US07936406B2Publication Date: 2011-05-03
- Inventor: Herb Huang , Wei Min Li , Haiting Li , Ziru Ren , Yinan Han
- Applicant: Herb Huang , Wei Min Li , Haiting Li , Ziru Ren , Yinan Han
- Applicant Address: CN Shanghai
- Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
- Current Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
- Current Assignee Address: CN Shanghai
- Agency: Kilpatrick Townsend and Stockton LLP
- Priority: CN200810040294 20080703
- Main IPC: G02F1/1343
- IPC: G02F1/1343 ; G02F1/1333

Abstract:
In a specific embodiment, the present invention provides an LCOS device. The device has a semiconductor substrate, e.g., silicon substrate. The device has a transistor formed within the semiconductor substrate. The transistor has a first node, a second node, and a row node. A first capacitor structure is coupled to the transistor. The first capacitor structure includes a first polysilicon layer coupled to the second node of the transistor. The first capacitor structure also has a first capacitor insulating layer overlying the first polysilicon layer and a second polysilicon layer overlying the insulating layer. The second polysilicon layer is coupled to a reference potential, e.g., ground. The device has a second capacitor structure coupled to the transistor. The second capacitor structure has a first metal layer coupled to the reference potential, a second capacitor insulating layer, and a second metal layer coupled to the second node of the transistor. A pixel electrode comprises the first metal layer. The pixel electrode is coupled to the second node of the transistor. A mirror surface is on the pixel electrode. The device has a light shielding layer formed from a portion of the second metal layer.
Public/Granted literature
- US20100283926A1 METHOD AND RESULTING CAPACITOR STRUCTURE FOR LIQUID CRYSTAL ON SILICON DISPLAY DEVICES Public/Granted day:2010-11-11
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