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    • 2. 发明授权
    • Semiconductor device including a capacitance
    • 包括电容的半导体装置
    • US07608879B2
    • 2009-10-27
    • US11840612
    • 2007-08-17
    • Shigenobu MaedaTakashi IpposhiYuuichi Hirano
    • Shigenobu MaedaTakashi IpposhiYuuichi Hirano
    • H01L29/94
    • H01L21/84H01L27/0629H01L27/0808H01L27/0811H01L27/1203H01L29/66181H01L29/66545H01L29/94
    • It is an object to obtain a semiconductor device including a capacitance having a great Q-value. In an SOI substrate comprising a support substrate (165), a buried oxide film (166) and an SOI layer (171), an isolating oxide film 167 (167a to 167c) is selectively formed in an upper layer portion of the SOI layer (171) with a part of the SOI layer (171) remaining as a P− well region (169). Consequently, an isolation (partial isolation) structure is obtained. An N+ diffusion region (168) is formed in the SOI layer (171) between the isolating oxide films (167a) and (167b) and a P+ diffusion region (170) is formed in the SOI layer (171) between the isolating oxide films (167b) and (167c). Consequently, there is obtained a junction type variable capacitance (C23) having a PN junction surface of the P− well region (169) provided under the isolating oxide film (167b) and the N+ diffusion region (168).
    • 本发明的目的是获得包括具有大Q值的电容的半导体器件。 在包括支撑衬底(165),掩埋氧化膜(166)和SOI层(171)的SOI衬底中,在SOI层的上层部分中选择性地形成隔离氧化膜167(167a至167c) 171)与SOI层(171)的一部分保持为P-阱区域(169)。 因此,获得隔离(部分隔离)结构。 在隔离氧化膜(167a)和(167b)之间的SOI层(171)中形成N +扩散区(168),在SOI层(171)中形成P +扩散区(170) (167b)和(167c)。 因此,获得了在隔离氧化膜(167b)和N +扩散区(168)之下具有P-阱区(169)的PN结表面的结型可变电容(C23)。
    • 4. 发明授权
    • Semiconductor device including a capacitance
    • 包括电容的半导体装置
    • US07339238B2
    • 2008-03-04
    • US11510582
    • 2006-08-28
    • Shigenobu MaedaTakashi IpposhiYuuichi Hirano
    • Shigenobu MaedaTakashi IpposhiYuuichi Hirano
    • H01L29/76
    • H01L21/84H01L27/0629H01L27/0808H01L27/0811H01L27/1203H01L29/66181H01L29/66545H01L29/94
    • It is an object to obtain a semiconductor device including a capacitance having a great Q-value. In an SOI substrate comprising a support substrate (165), a buried oxide film (166) and an SOI layer (171), an isolating oxide film 167 (167a to 167c) is selectively formed in an upper layer portion of the SOI layer (171) with a part of the SOI layer (171) remaining as a P− well region (169). Consequently, an isolation (partial isolation) structure is obtained. An N+ diffusion region (168) is formed in the SOI layer (171) between the isolating oxide films (167a) and (167b) and a P+ diffusion region (170) is formed in the SOI layer (171) between the isolating oxide films (167b) and (167c). Consequently, there is obtained a junction type variable capacitance (C23) having a PN junction surface of the P− well region (169) provided under the isolating oxide film (167b) and the N+ diffusion region (168).
    • 本发明的目的是获得包括具有大Q值的电容的半导体器件。 在包括支撑衬底(165),掩埋氧化膜(166)和SOI层(171)的SOI衬底中,在SOI的上层部分中选择性地形成隔离氧化膜167(167a至167c) 层(171)与SOI层(171)的一部分保持为阱区(169)。 因此,获得隔离(部分隔离)结构。 在隔离氧化膜(167a)和(167b)之间的SOI层(171)中形成有N + +扩散区(168)和P + 区域(170)形成在隔离氧化膜(167b)和(167c)之间的SOI层(171)中。 因此,获得了具有设置在隔离氧化膜(167b)下面的P阱区域(169)的PN结表面的结型可变电容(C23)和N
    • 8. 发明授权
    • Semiconductor device including a capacitance
    • 包括电容的半导体装置
    • US07112835B2
    • 2006-09-26
    • US10995193
    • 2004-11-24
    • Shigenobu MaedaTakashi IpposhiYuuichi Hirano
    • Shigenobu MaedaTakashi IpposhiYuuichi Hirano
    • H01L29/93
    • H01L21/84H01L27/0629H01L27/0808H01L27/0811H01L27/1203H01L29/66181H01L29/66545H01L29/94
    • It is an object to obtain a semiconductor device including a capacitance having a great Q-value. In an SOI substrate comprising a support substrate (165), a buried oxide film (166) and an SOI layer (171), an isolating oxide film 167 (167a to 167c) is selectively formed in an upper layer portion of the SOI layer (171) with a part of the SOI layer (171) remaining as a P− well region (169). Consequently, an isolation (partial isolation) structure is obtained. An N+ diffusion region (168) is formed in the SOI layer (171) between the isolating oxide films (167a) and (167b) and a P+ diffusion region (170) is formed in the SOI layer (171) between the isolating oxide films (167b) and (167c). Consequently, there is obtained a junction type variable capacitance (C23) having a PN junction surface of the P− well region (169) provided under the isolating oxide film (167b) and the N+ diffusion region (168).
    • 本发明的目的是获得包括具有大Q值的电容的半导体器件。 在包括支撑衬底(165),掩埋氧化膜(166)和SOI层(171)的SOI衬底中,在SOI的上层部分中选择性地形成隔离氧化膜167(167a至167c) 层(171)与SOI层(171)的一部分保持为阱区(169)。 因此,获得隔离(部分隔离)结构。 在隔离氧化膜(167a)和(167b)之间的SOI层(171)中形成有N + +扩散区(168)和P + 区域(170)形成在隔离氧化膜(167b)和(167c)之间的SOI层(171)中。 因此,获得了具有设置在隔离氧化膜(167b)下面的P阱区域(169)的PN结表面的结型可变电容(C23)和N