会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 92. 发明授权
    • High power field effect transistor
    • 大功率场效应晶体管
    • US5382821A
    • 1995-01-17
    • US988258
    • 1992-12-14
    • Shigeru Nakajima
    • Shigeru Nakajima
    • H01L29/423H01L27/085H01L27/088H01L27/105
    • H01L29/42316
    • There is disclosed an FET having a high drain breakdown voltage and a short gate length comprising an active layer 2 formed on a surface layer of a semiconductor substrate 1; a highly doped impurity source region 4 and highly doped impurity drain region 4 formed in the surface layer of the semiconductor substrate 1 to sandwich the active layer 2; an insulation film 5 formed on the highly doped impurity source region 4; a gate electrode 8 formed on the active layer 2 and the insulation film 5 while maintaining a constant distance 1.sub.GD from the highly doped impurity drain region 4; and a source electrode 6 and a drain electrode 7 formed on the highly doped impurity source region 4 and the highly doped impurity drain region 4, respectively.
    • 公开了一种具有高漏极击穿电压和短栅极长度的FET,其包括形成在半导体衬底1的表面层上的有源层2; 形成在半导体衬底1的表面层中以夹持有源层2的高掺杂杂质源区4和高掺杂杂质漏极区4; 形成在高掺杂杂质源区4上的绝缘膜5; 形成在有源层2和绝缘膜5上的栅电极8,同时保持与高掺杂杂质漏区4的距离1GD不变; 以及分别形成在高掺杂杂质源极区4和高掺杂杂质漏极区4上的源电极6和漏电极7。
    • 93. 发明授权
    • High voltage MOS transistor with a low on-resistance
    • 具有低导通电阻的高压MOS晶体管
    • US5313082A
    • 1994-05-17
    • US18080
    • 1993-02-16
    • Klas H. Eklund
    • Klas H. Eklund
    • H01L27/02H01L21/337H01L21/8232H01L21/8234H01L27/06H01L27/085H01L27/088H01L27/095H01L29/06H01L29/08H01L29/78H01L29/808H01L29/784
    • H01L27/085H01L29/0634H01L29/0847H01L29/7835H01L29/7832
    • An embodiment of the present invention is an improved insulated-gate, field-effect transistor and a three-sided, junction-gate field-effect transistor connected in series on the same chip to form a high-voltage MOS transistor. An extended drain region is formed on top of a substrate of opposite conductivity material. A layer of material with a conductivity opposite to that of the material of the extended drain region is buried within the extended drain region such that field-effect pinch-off depletion zones extend both above and below the buried layer. A top layer of material similar to the substrate is formed by ion implantation through the same mask window as the extended drain region. The top layer covers the buried layer and extended drain region and itself is covered by a silicon dioxide layer above. Current flow through the extended drain is controlled by the substrate and buried layer when a voltage is applied to pinch-off the extended drain between them in a familiar field-effect fashion.
    • 本发明的一个实施例是一种改进的绝缘栅,场效应晶体管和串联在同一芯片上的三边形结栅场效应晶体管,以形成高压MOS晶体管。 延伸的漏极区域形成在相对导电材料的衬底的顶部上。 具有导电性与延伸漏极区的材料导电性相反的材料层被掩埋在延伸的漏极区内,使得场效应夹断耗尽区在掩埋层的上方和下方延伸。 通过与延伸的漏极区域相同的掩模窗口的离子注入形成与衬底类似的顶层材料。 顶层覆盖掩埋层和延伸的漏极区,并且其上面被二氧化硅层覆盖。 通过延伸漏极的电流通过衬底和掩埋层进行控制,当施加电压以熟悉的场效应方式将它们之间的扩展漏极夹紧时。
    • 94. 发明授权
    • Digital-to-analog converting field effect device and circuitry
    • 数字到模拟转换场效应器件和电路
    • US5005059A
    • 1991-04-02
    • US345746
    • 1989-05-01
    • John M. GolioJoseph Staudinger
    • John M. GolioJoseph Staudinger
    • H03M1/36H01L21/8234H01L27/085H01L27/088H01L29/78H01L29/812H03M1/74
    • H01L27/085H01L29/7831H01L29/8124
    • A field effect device and circuit suitable for providing an analog output signal having a magnitude which is representative of a digital input code having a sequence of bits. The device includes a plurality of gate electrodes located between an input electrode and an output electrode. The gate electrodes have unequal lengths to provide different gate widths each representative of the magnitude of a portion of an analog signal provided at the output electrode in response to a digital signal of a particular logic state, such as a logical "one", when applied to any one of the gate electrodes. Thus, the magnitude of the current conducted between the input electrode and the output electrode is responsive to the sum of the widths of the gates receiving the digital signal of a particular logic state.
    • 一种场效应器件和电路,适于提供具有表示具有位序列的数字输入代码的幅度的模拟输出信号。 该器件包括位于输入电极和输出电极之间的多个栅电极。 栅极电极具有不同的长度以提供不同的栅极宽度,每个栅极宽度表示当施加时响应于特定逻辑状态的数字信号(例如逻辑“1”)在输出电极处提供的模拟信号的一部分的幅度的大小 到任意一个栅电极。 因此,在输入电极和输出电极之间传导的电流的大小响应于接收特定逻辑状态的数字信号的门的宽度的总和。
    • 100. 发明授权
    • Semiconductor device
    • 半导体器件
    • US4228444A
    • 1980-10-14
    • US947050
    • 1978-09-29
    • Ryoiku Togei
    • Ryoiku Togei
    • H01L29/812H01L21/338H01L27/085H01L29/423H01L29/45H01L29/76H01L29/80
    • H01L27/085H01L29/42312H01L29/456H01L29/7606
    • On a semiconductor substrate (or layer) of one conductivity type, a semiconductor layer of the opposite conductivity type is formed and a source and a drain region of the same conductivity type as the semiconductor substrate are formed in the semiconductor layer. Junctions are respectively formed between the source and drain regions and the semiconductor layer at such positions where punch-through may easily occur between the source and drain regions and the semiconductor substrate when operating voltages are applied to these regions. A local potential distribution generation electrode, which makes an ohmic contact with the semiconductor layer, is formed between the source and drain regions. By applying voltages to both the local potential distribution generation electrode and a drain electrode at substantially the same time, a potential barrier normally formed in the semiconductor layer is removed, thereby to inject carriers from the source region to the drain region through the semiconductor substrate (or layer).
    • 在一种导电型的半导体衬底(或层)上,形成相反导电型的半导体层,并且在半导体层中形成与半导体衬底相同导电类型的源区和漏区。 在源极和漏极区域之间并且在工作电压被施加到这些区域时在这样的位置处可能容易地在源极和漏极区域和半导体衬底之间产生穿通的位置处形成接合区域和半导体层。 在源极和漏极区域之间形成与半导体层形成欧姆接触的局部电位分布产生电极。 通过同时向局部电位分配产生电极和漏电极施加电压,去除在半导体层中通常形成的势垒,从而通过半导体衬底将载流子从源极区域注入到漏极区域 或层)。