发明授权
US06818462B1 METHOD OF DETERMINING THE ACTIVE REGION WIDTH BETWEEN SHALLOW TRENCH ISOLATION STRUCTURES USING A C-V MEASUREMENT TECHNIQUE FOR FABRICATING A FLASH MEMORY SEMICONDUCTOR DEVICE AND A DEVICE THEREBY FORMED
失效
使用C-V测量技术确定闪存隔离结构之间的活性区域宽度的方法,用于制造闪速存储器半导体器件及其形成的器件
- 专利标题: METHOD OF DETERMINING THE ACTIVE REGION WIDTH BETWEEN SHALLOW TRENCH ISOLATION STRUCTURES USING A C-V MEASUREMENT TECHNIQUE FOR FABRICATING A FLASH MEMORY SEMICONDUCTOR DEVICE AND A DEVICE THEREBY FORMED
- 专利标题(中): 使用C-V测量技术确定闪存隔离结构之间的活性区域宽度的方法,用于制造闪速存储器半导体器件及其形成的器件
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申请号: US10224028申请日: 2002-08-19
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公开(公告)号: US06818462B1公开(公告)日: 2004-11-16
- 发明人: Tien-Chun Yang , Nian Yang , Zhigang Wang
- 申请人: Tien-Chun Yang , Nian Yang , Zhigang Wang
- 主分类号: H01L2166
- IPC分类号: H01L2166
摘要:
A method of determining the active region width (10) of an active region (4) by measuring the respective capacitance values (C100, C100′, C100″) of respective composite capacitance structures (100, 100′, 100″), respectively comprising at least one capacitor element(16, 17, 18; 16′, 17′, 18″; 16″, 17″, 18″) having respective predetermined widths (Wi) for fabricating a flash memory semiconductor device, and a device thereby fabricated. The present method also comprises plotting the respective capacitance values (C100, C100′, C100″) as a quasi-linear function (CW) of the respective predetermined widths (Wi), extrapolating a calibration term (WC=0) from the quasi-linear function (CW), and subtracting the calibration term (WC=0) from the respective predetermined widths (Wi) to define and constrain the active region width (10) for facilitating device fabrication.
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