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    • 1. 发明授权
    • Trench-capacitor-one-transistor storage cell and array for dynamic
random access memories
    • 用于动态随机存取存储器的沟槽电容器一晶体管存储单元和阵列
    • US5198995A
    • 1993-03-30
    • US605892
    • 1990-10-30
    • Robert H. DennardNicky C. Lu
    • Robert H. DennardNicky C. Lu
    • G11C11/4091H01L27/108
    • G11C11/4091H01L27/10829
    • Lightly Depleted PMOS (LDP) substrate-plate trench-capacitor (SPT) cell Array architecture is disclosed including three types of devices: An enhancement NMOS transistor (ENMOS) which has a n+ poly gate with a positive threshold voltage range, an enhancement PMOS transistor (EPMOS) having a p+ poly gate with a negative threshold voltage range, and a lightly depleted PMOS transistor (LDPMOS) having a p+ poly gate. The LDPMOS is used as the access transistor in the SPT cell with body biased at the power supply voltage VDD, and can also be used in the write drivers. A sense amplifier is included which is a CMOS cross-coupled latch. An n-well is biased at a lower voltage than VDD, such as (VDD--Vg) where Vg is the silicon bandgap, and the lower thresholds enhance faster sensing. The CMOS cross-coupled latch is activated by turning on latching devices. The bitlines are prevented from charging to greater than VDD--Vg, which could cause the array devices of unselected cells to conduct current and alter the stored low-voltage state of such cells.
    • 公开了具有三种类型器件的轻度耗尽的PMOS(LDP)衬底板沟槽电容器(SPT)单元阵列结构:具有正阈值电压范围的n +多晶硅栅极的增强型NMOS晶体管(ENMOS),增强型PMOS晶体管 (EPMOS)具有负阈值电压范围的p +多晶硅栅极,以及具有p +多晶硅栅极的低耗尽PMOS晶体管(LDPMOS)。 LDPMOS用作SPT单元中的存取晶体管,其主体在电源电压VDD处偏置,并且也可用于写入驱动器。 包括一个CMOS交叉耦合锁存器的读出放大器。 n阱被偏置在比VDD低的电压,例如(VDD-Vg),其中Vg是硅带隙,并且下阈值增强更快的感测。 通过开启锁存器件来激活CMOS交叉耦合锁存器。 阻止位线大于VDD-Vg,这可能导致未选择的单元的阵列器件导通电流并改变这种单元的存储的低电压状态。
    • 3. 发明授权
    • Radiation hardened FinFET
    • 辐射硬化FinFET
    • US08735990B2
    • 2014-05-27
    • US11679869
    • 2007-02-28
    • Brent A. AndersonRobert H. DennardMark C. HakeyEdward J. Nowak
    • Brent A. AndersonRobert H. DennardMark C. HakeyEdward J. Nowak
    • H01L21/70H01L27/085H01L29/06
    • H01L29/785H01L29/66795H01L29/7851
    • The embodiments of the invention provide a structure and method for a rad-hard FinFET or mesa. More specifically, a semiconductor structure is provided having at least one fin or mesa comprising a channel region on an isolation region. A doped substrate region is also provided below the fin, wherein the doped substrate region has a first polarity opposite a second polarity of the channel region. The isolation region contacts the doped substrate region. The structure further includes a gate electrode covering the channel region and at least a portion of the isolation region. The gate electrode comprises a lower portion below the channel region of the fin, wherein the lower portion of the gate electrode comprises a height that is at least one-half of a thickness of the fin.
    • 本发明的实施例提供了一种用于Rad-hard FinFET或台面的结构和方法。 更具体地,提供了具有至少一个翅片或台面的半导体结构,其包括在隔离区域上的沟道区域。 掺杂衬底区域也设置在鳍片的下方,其中掺杂衬底区域具有与沟道区域的第二极性相反的第一极性。 隔离区域接触掺杂衬底区域。 该结构还包括覆盖沟道区域和隔离区域的至少一部分的栅电极。 栅极电极包括在鳍片的沟道区域下方的下部,其中栅电极的下部包括至少翅片厚度的二分之一的高度。
    • 5. 发明授权
    • Gated diode memory cells
    • 门控二极管存储单元
    • US08445946B2
    • 2013-05-21
    • US10735061
    • 2003-12-11
    • Wing K. LukRobert H. Dennard
    • Wing K. LukRobert H. Dennard
    • H01L27/108G11C11/36
    • G11C11/405
    • A gated diode memory cell is provided, including one or more transistors, such as field effect transistors (“FETs”), and a gated diode in signal communication with the FETs such that the gate of the gated diode is in signal communication with the source of a first FET, wherein the gate of the gated diode forms one terminal of the storage cell and the source of the gated diode forms another terminal of the storage cell, the drain of the first FET being in signal communication with a bitline (“BL”) and the gate of the first FET being in signal communication with a write wordline (“WLw”), and the source of the gated diode being in signal communication with a read wordline (“WLr”).
    • 提供了门控二极管存储单元,其包括一个或多个晶体管,例如场效应晶体管(“FET”),以及与FET信号通信的门控二极管,使得门控二极管的栅极与源极信号通信 第一FET的栅极,其中栅极二极管的栅极形成存储单元的一个端子,门控二极管的源极形成存储单元的另一个端子,第一FET的漏极与位线(“BL” “),并且第一FET的栅极与写入字线(”WLw“)进行信号通信,并且门控二极管的源极与读取字线(”WLr“)进行信号通信。
    • 6. 发明授权
    • Amplifiers using gated diodes
    • US08324667B2
    • 2012-12-04
    • US10751714
    • 2004-01-05
    • Wing K. LukRobert H. Dennard
    • Wing K. LukRobert H. Dennard
    • H01L29/94
    • H03F1/56G11C7/06H01L27/0811H01L29/7391H03F2200/183
    • A circuit comprises a control line and a two terminal semiconductor device having first and second terminals. The first terminal is coupled to a signal line, and the second terminal is coupled to the control line. The two terminal semiconductor device is adapted to have a capacitance when a voltage on the first terminal relative to the second terminal is above a threshold voltage and to have a smaller capacitance when a voltage on the first terminal relative to the second terminal is below the threshold voltage. The control line is coupled to a control signal and the signal line is coupled to a signal and is output of the circuit. A signal is placed on the signal line and voltage on the control line is modified (e.g., raised in the case of n-type devices, or lowered for a p-type devices). When the signal falls below the threshold voltage, the two terminal semiconductor device acts as a very small capacitor and the output of the circuit will be a small value. When the signal is above the threshold voltage, the two terminal semiconductor device acts as a large capacitor and the output of the circuit will be influenced by both the value of the signal and the value of the modified voltage on the control line and therefore the signal will be amplified.