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
    • 9. 发明授权
    • Integrated current-limiter device for power MOS transistors
    • 用于功率MOS晶体管的集成电流限制器件
    • US5422509A
    • 1995-06-06
    • US40216
    • 1993-04-01
    • Raffaele Zambrano
    • Raffaele Zambrano
    • H01L21/331H01L27/06H01L29/735H01L29/50H01L29/70H01L29/78
    • H01L29/6625H01L27/0623H01L29/735Y10S148/01Y10S148/011Y10S148/126
    • A bipolar control transistor, forming part of an integrated current-limiter device comprises inside an epitaxial layer superimposed over a semiconductor substrate of a first type of conductivity, a base region of a second type of conductivity accessible from a base contact and regions of collector and emitter of the first type of conductivity contained in the base region and accessible from respective collector and emitter contacts. The base region comprises at least one highly-doped deep-body region which contains almost completely said emitter region, a lightly-doped body region which contains the collector region and an intermediate-doped region which co-operates with the first deep-body region to completely contain the emitter region and a surface area of the base region that is included between the regions of collector and emitter. There is also at least one first portion of a layer of polysilicon superimposed and self-aligned with the surface area between the regions of collector and emitter and electrically connected to the collector contact of the bipolar transistor.
    • 形成集成电流限制器件的一部分的双极性控制晶体管包括叠加在第一导电类型的半导体衬底上的外延层的内部,可从基极接触的第二类导电性的基极区域和集电极和 第一类电导率的发射极包含在基极区域中并且可从相应的集电极和发射极触点接近。 基极区域包括至少一个高度掺杂的深体区域,其包含几乎完全是所述发射极区域,包含集电极区域的轻掺杂体区域和与第一深体区域配合的中间掺杂区域 以完全包含发射极区域和包括在集电极和发射极的区域之间的基极区域的表面积。 还存在与集电极和发射极的区域之间的表面积叠置并自对准并与双极晶体管的集电极触点电连接的多晶硅层的至少一个第一部分。
    • 10. 发明授权
    • Monolithic programmable attenuator
    • 单片可编程衰减器
    • US4684965A
    • 1987-08-04
    • US810900
    • 1985-12-20
    • Yusuke TajimaToshikazu Tsukii
    • Yusuke TajimaToshikazu Tsukii
    • H03H11/24H01L29/50H01L29/52
    • H03H11/245
    • A programmable attenuator includes a plurality of field effect transistors (FETS) arranged together to provide an attenuation network. Each one of the FETS has a plurality of cell portions, each cell portion having drain, gate and source regions, the source and drain regions of the cell portions being connected in parallel. A first selected portion of the gate regions of each one of said FETS is connected to a gate electrode. A second selected remaining portion of the gate regions of each one of the FETS has the gate regions thereof isolated from the gate electrode. A signal fed to the gate electrode of each FET is distributed to the connected gate regions of each field effect transistor. In response to such signal, the total drain-source resistance of such FET is changed between a predetermined low value and a predetermined high value, with the resistance of the predetermined high value being determined, in part, by the number of such isolated gate regions.
    • 可编程衰减器包括布置在一起以提供衰减网络的多个场效应晶体管(FETS)。 每个FETS具有多个单元部分,每个单元部分具有漏极,栅极和源极区域,单元部分的源极和漏极区域并联连接。 每个所述FETS的栅极区域的第一选定部分连接到栅电极。 每个FET的栅极区域的第二剩余部分的栅极区域与栅电极隔离。 馈送到每个FET的栅电极的信号被分配到每个场效应晶体管的连接的栅极区域。 响应于这种信号,这种FET的总漏极 - 源极电阻在预定的低值和预定的高值之间变化,其中预定的高电阻的电阻部分地被这样的隔离栅极区域的数量确定 。