Method of making mosfet by multiple implantations followed by a
diffusion step
    11.
    再颁专利
    Method of making mosfet by multiple implantations followed by a diffusion step 失效
    通过多次植入随后扩散步骤制备mosfet的方法

    公开(公告)号:USRE32800E

    公开(公告)日:1988-12-13

    申请号:US053269

    申请日:1987-05-21

    Abstract: A short channel metal oxide semiconductor transistor device is processed without undesirable short channel effects, such as V.sub.T falloff and with a reasonable source-drain operating voltage support. In a substrate lightly doped with P-type conductivity material and source and drain region heavily doped with an N-type conductivity material, two lightly doped N- regions are disposed between the edge of the gate and the source and drain regions. A channel region is more heavily doped with P-type material than the substrate. Two regions extend from opposite sides of the channel region to an area generally below the two N- regions and above the substrate, which regions are more heavily doped than the channel regions.

    Methods for fabricating anti-fuse structures
    14.
    发明授权
    Methods for fabricating anti-fuse structures 失效
    制造抗熔丝结构的方法

    公开(公告)号:US5793094A

    公开(公告)日:1998-08-11

    申请号:US579780

    申请日:1995-12-28

    CPC classification number: H01L23/5252 H01L2924/0002

    Abstract: A method for substantially reducing variations in a programming voltage of an anti-fuse structure formed on an integrated circuit wafer. The anti-fuse structure has a metal-one layer, an anti-fuse layer disposed above the metal-one layer, a oxide layer disposed above the anti-fuse layer, and a via hole in the oxide layer through to the anti-fuse layer for receiving a deposition of a metal-two material. The method includes the step of rendering a selected anti-fuse area susceptible to fuse link formation by reducing a resistivity of the selected anti-fuse area to diffusion of atoms from one of the metal-one layer and the metal-two layer when a programming voltage is applied between the metal one layer and the metal two layer. The selected anti-fuse area is located in the anti-fuse layer and substantially adjacent to and outside of an anti-fuse area directly below the via hole. The method further includes the step of depositing the metal-two material into the via hole.

    Abstract translation: 一种用于基本上减少在集成电路晶片上形成的抗熔丝结构的编程电压的变化的方法。 反熔丝结构具有金属一层,设置在金属一层上方的抗熔丝层,设置在抗熔融层上方的氧化物层,以及氧化物层中的通孔到反熔丝 用于接收金属二材料的沉积的层。 该方法包括以下步骤:当编程时,通过降低所选择的反熔丝区域与金属层和金属二层中的一个的原子的扩散,使选择的抗熔丝区域易于熔融链接形成 在金属一层和金属两层之间施加电压。 所选择的反熔丝区域位于反熔丝层中,并且基本上邻近通孔正下方的反熔丝区域的外部。 该方法还包括将金属二材料沉积到通孔中的步骤。

    Field effect device with polycrystalline silicon channel
    15.
    发明授权
    Field effect device with polycrystalline silicon channel 失效
    具多晶硅通道的场效应器件

    公开(公告)号:US5135888A

    公开(公告)日:1992-08-04

    申请号:US531014

    申请日:1990-05-31

    Abstract: A CMOS SRAM cell has a polycrystalline silicon signal line between a common node, which is the data storage node, and the power supply. A field effect device is fabricated within this polycrystalline silicon signal line. The channel of the field effect device is separated from an active area in the substrate by a thin gate dielectric, and the active region within the substrate functions as the control gate for the field effect device. Such a device can be used to provide polycrystalline silicon P-channel transistors for use in CMOS SPRAM cells.

    Abstract translation: CMOS SRAM单元在作为数据存储节点的公共节点和电源之间具有多晶硅信号线。 在该多晶硅信号线内制造场效应器件。 场效应器件的沟道通过薄栅电介质与衬底中的有源区域分离,并且衬底内的有源区域用作场效应器件的控制栅极。 这种器件可用于提供用于CMOS SPRAM单元的多晶硅P沟道晶体管。

    Pad oxide protect sealed interface isolation process
    16.
    发明授权
    Pad oxide protect sealed interface isolation process 失效
    垫氧化物保护密封接口隔离工艺

    公开(公告)号:US4981813A

    公开(公告)日:1991-01-01

    申请号:US279343

    申请日:1988-12-02

    CPC classification number: H01L21/76205 H01L21/32

    Abstract: Field oxide regions are formed between active regions of a silicon substrate by forming over the substrate a sandwich of silicon dioxide, silicon nitride and silicon dioxide layers, opening the layers to expose a portion of the silicon substrate, removing a layer of the exposed substrate, forming side wall spacers on the edges of the opening, removing a layer of the silicon substrate exposed between the side wall spacers, and then reaching the exposed substrate for the thermal oxidation of the exposed substrate for forming the field oxide region. In those structures in which the field oxide is buried in the substrate as shown in FIG. 12, it may be feasible to use thicker field oxide regions and thereby to reduce the need for the heavily doped surface layer under the field oxide.

    Abstract translation: 通过在衬底上形成二氧化硅,氮化硅和二氧化硅层的夹层来形成在硅衬底的有源区之间的场氧化物区域,打开这些层以露出硅衬底的一部分,去除暴露的衬底的一层, 在开口的边缘上形成侧壁间隔物,去除暴露在侧壁间隔物之间​​的硅衬底层,然后到达暴露的衬底,用于暴露衬底的热氧化以形成场氧化物区域。 在如图1所示的那些场地氧化物埋在衬底中的那些结构中。 如图12所示,可以使用较厚的场氧化物区域,从而减少对场氧化物下的重掺杂表面层的需要。

    Method of making MOSFET by multiple implantations followed by a
diffusion step
    17.
    发明授权
    Method of making MOSFET by multiple implantations followed by a diffusion step 失效
    通过多次注入制造MOSFET,随后进行扩散步骤的方法

    公开(公告)号:US4599118A

    公开(公告)日:1986-07-08

    申请号:US654281

    申请日:1984-09-24

    Abstract: A short channel metal oxide semiconductor transistor device is processed without undesirable short channel effects, such as V.sub.T falloff and with a reasonable source-drain operating voltage support. In a substrate lightly doped with P-type conductivity material and source and drain region heavily doped with an N-type conductivity material, two lightly doped N- regions are disposed between the edge of the gate and the source and drain regions. A channel region is more heavily doped with P-type material than the substrate. Two regions extend from opposite sides of the channel region to an area generally below the two N- regions and above the substrate, which regions are more heavily doped than the channel regions.

    Abstract translation: 处理短沟道金属氧化物半导体晶体管器件而没有不期望的短沟道效应,例如VT衰减和合理的源极 - 漏极工作电压支持。 在轻掺杂有P型导电材料的衬底和重掺杂有N型导电材料的源极和漏极区域中,在栅极的边缘与源极和漏极区域之间设置两个轻掺杂的N区。 与衬底相比,沟道区比P型材料更重掺杂。 两个区域从通道区域的相对侧延伸到通常低于两个N-区域并且在衬底上方的区域,这些区域比沟道区域更重掺杂。

    Antifuse structures
    19.
    发明授权
    Antifuse structures 失效
    防腐结构

    公开(公告)号:US5821558A

    公开(公告)日:1998-10-13

    申请号:US792791

    申请日:1997-02-03

    CPC classification number: H01L27/11206 H01L27/112

    Abstract: An antifuse structure includes a first electrode, a layer of enhanced amorphous silicon over the first electrode, and a second electrode over the layer of enhanced amorphous silicon. The layer of enhanced amorphous silicon is formed by an ion-implantation of a neutral species and a dopant species into a deposited layer of amorphous silicon, such that the antifuse structure will have a stable conductive link in a programmed state and such that it will be less susceptible to off-state leakage in an unprogrammed state. A method for making an antifuse structure includes forming a lower electrode, depositing an amorphous silicon layer over the lower electrode, ion-implanting a neutral species and a dopant species into the amorphous silicon layer, and forming an upper electrode over the amorphous silicon layer.

    Abstract translation: 反熔丝结构包括第一电极,在第一电极上方的增强非晶硅层,以及增强非晶硅层上的第二电极。 通过将中性物质和掺杂剂物质的离子注入到非晶硅的沉积层中形成增强非晶硅层,使得反熔丝结构将在编程状态下具有稳定的导电链路,并且使得其将被 在非编程状态下较不易于断态泄漏。 制造反熔丝结构的方法包括形成下电极,在下电极上沉积非晶硅层,将中性物质和掺杂剂物质离子注入到非晶硅层中,以及在非晶硅层上形成上电极。

    Capacitance measurement using an RLC circuit model
    20.
    发明授权
    Capacitance measurement using an RLC circuit model 失效
    使用RLC电路模型进行电容测量

    公开(公告)号:US5793640A

    公开(公告)日:1998-08-11

    申请号:US773171

    申请日:1996-12-26

    CPC classification number: G01R27/2605

    Abstract: A computer-aided method and system are provided for obtaining a measurement of the capacitance value of a device under test (DUT). The complex impedance of a device under test (DUT) is measured at two nearby frequencies using an RLC meter. The two complex impedance values are then stored in a computer readable medium. The DUT is modeled by a programmed computer as a four element RLC model circuit including a resistor and inductor in series with a parallel RC circuit having a single capacitor which represents the capacitance of the DUT. Four equations which describe the electrical characteristics of the four element RLC model circuit are stored in a computer readable medium. The four measured values of complex impedance are substituted by the computer into the four stored equations. Values are obtained for the four individual RLC circuit elements by solving the four equations. The four unknown values are obtained by use of an optimization routine and then stored to a computer readable medium. The value capacitor element representing the capacitance of the DUT is then displayed.

    Abstract translation: 提供了一种计算机辅助方法和系统,用于获得待测器件(DUT)的电容值的测量。 被测设备(DUT)的复阻抗使用RLC仪在两个附近的频率下测量。 然后将两个复阻抗值存储在计算机可读介质中。 DUT被编程的计算机建模为四元件RLC模型电路,其包括与表示DUT的电容的单个电容器的并联RC电路串联的电阻器和电感器。 描述四元素RLC模型电路的电特性的四个等式被存储在计算机可读介质中。 复阻抗的四个测量值被计算机代入四个存储的方程。 通过求解四个等式获得四个单独的RLC电路元件的值。 通过使用优化例程获得四个未知值,然后将其存储到计算机可读介质中。 然后显示表示DUT的电容的值电容器元件。

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