Device channel profile structure
    31.
    发明授权

    公开(公告)号:US11335683B2

    公开(公告)日:2022-05-17

    申请号:US16917451

    申请日:2020-06-30

    Abstract: A transistor channel profile structure may be improved to provide better transistor circuits performance. In one example, a transistor circuit may include different fin profiles for the NMOS transistors and the PMOS transistors, such as the NMOS fins are thicker than the PMOS fins or the NMOS fin has a straight vertical surface and the PMOS fin has a notch at a fin bottom region. In still another example, a transistor circuit may include different nano-sheet profiles for a NMOS GAA device and a PMOS GAA device where the NMOS nano-sheet is thicker than the PMOS nano-sheet. Such configurations optimize the NMOS and the PMOS transistors with the NMOS having a low channel resistance while the PMOS has a lower short channel effect.

    Transistor with insulator
    32.
    发明授权

    公开(公告)号:US11164952B2

    公开(公告)日:2021-11-02

    申请号:US16812292

    申请日:2020-03-07

    Abstract: A gate all around transistor may be improved to provide better transistor circuits performance. In one example, a transistor circuit may include a dielectric or air gap as an insulator between the channels of the transistors in the circuit. In another example, a transistor may include a first channel surrounded by a first metal, a second channel surrounded by a second metal proximate to the first channel, and an insulator, such as a dielectric or air gap, between the first metal and the second metal. The insulator helps reduce the parasitic capacitance between the source/drain regions and the metal fill regions of the transistor.

    Ferroelectric transistor
    33.
    发明授权

    公开(公告)号:US11139315B2

    公开(公告)日:2021-10-05

    申请号:US16669837

    申请日:2019-10-31

    Abstract: Certain aspects of the present disclosure are directed to a semiconductor device. The semiconductor device generally includes a ferroelectric (FE) semiconductor device having a channel region; a gate oxide; a FE region, wherein the gate oxide is disposed between the FE region and the channel region; a gate region, wherein the FE region is disposed between the gate oxide and the gate region; a first semiconductor region disposed adjacent to the channel region; and a second semiconductor region disposed adjacent to the channel region. The semiconductor device may also include a transistor, wherein a region of the transistor is connected to the gate region, the first semiconductor region, or the second semiconductor region of the FE semiconductor device.

    Gate-cut isolation structure and fabrication method

    公开(公告)号:US11121132B2

    公开(公告)日:2021-09-14

    申请号:US16678320

    申请日:2019-11-08

    Inventor: Haining Yang

    Abstract: Certain aspects of the present disclosure generally relate to a semiconductor device with a gate-cut isolation structure. An example method of fabricating semiconductor device generally includes forming a dielectric region between a first semiconductor region and a second semiconductor region. The method also includes forming a first gate region disposed above and spanning a width of the dielectric region between the first and second semiconductor regions, wherein the first gate region is also disposed above at least a portion of the first semiconductor region and above at least a portion of the second semiconductor region. The method further includes concurrently forming an SDB and a gate-cut isolation structure, wherein the SDB intersects the first and second semiconductor regions and wherein the gate-cut isolation structure electrically separates the first gate region into a first portion associated with the first semiconductor region and a second portion associated with the second semiconductor region.

    Shunt power rail with short line effect

    公开(公告)号:US11038344B2

    公开(公告)日:2021-06-15

    申请号:US16362417

    申请日:2019-03-22

    Abstract: A cell circuit includes a first power rail, having a first line length, in a first layer. The first power rail is configured to receive a first voltage for the cell circuit. The cell circuit includes multiple lines in a second layer and a shunt in a third layer. The shunt is electrically coupled to the first power rail and a first set of lines of the multiple lines. The shunt has a second line length shorter than the first line length. The cell circuit includes another shunt in t the third layer. The other shunt is also parallel to the first power rail. The other shunt is electrically coupled to the first power rail and a second set of lines of the multiple lines. The other shunt has a third line length shorter than the first line length.

    Offset gate contact
    36.
    发明授权

    公开(公告)号:US10854604B1

    公开(公告)日:2020-12-01

    申请号:US16578101

    申请日:2019-09-20

    Abstract: Offsetting or modulating the location of a gate between two transistors may achieve a lower power circuit and a higher speed circuit depending on the new location of the gate. In one example, a gate between a PFET transistor and an NFET transistor may be offset towards the PFET transistor to achieve a higher speed circuit than a conventional circuit with the gate located equal distance between the transistors. In another example, a gate between a PFET transistor and an NFET transistor may be offset towards the NFET transistor to achieve a lower power circuit than a conventional circuit with the gate located equal distance between the transistors.

    Programmable circuits for performing machine learning operations on edge devices

    公开(公告)号:US10825536B1

    公开(公告)日:2020-11-03

    申请号:US16556505

    申请日:2019-08-30

    Abstract: Certain aspects of the present disclosure are directed to methods and apparatus for programming a device having one or more programmable circuits to implement, for example, a machine learning model. One example apparatus generally includes a plurality of word lines, a plurality of bit lines, and an array of programmable circuits. Each programmable circuit is coupled to a corresponding word line in the plurality of word lines and to a corresponding bit line in the plurality of bit lines and comprises: a main resistor coupled between the corresponding word line and the corresponding bit line, an auxiliary resistor, a fuse coupled in series with the auxiliary resistor, wherein the auxiliary resistor and the fuse are coupled between the corresponding word line and the corresponding bit line, and a programming circuit configured to selectively blow the fuse.

    CIRCUITS EMPLOYING ASYMMETRIC DIFFUSION BREAKS IN DIFFERENT TYPE SEMICONDUCTOR DIFFUSION REGIONS, AND RELATED FABRICATION METHODS

    公开(公告)号:US20200168607A1

    公开(公告)日:2020-05-28

    申请号:US16203205

    申请日:2018-11-28

    Inventor: Haining Yang

    Abstract: Circuits employing asymmetric diffusion breaks in different type semiconductor diffusion regions are disclosed. In examples herein, diffusion breaks having dimensions asymmetric to each other are provided in different types of diffusion regions in a circuit to increase carrier mobility in semiconductor channels of a semiconductor device formed in different diffusion regions. In examples herein, the circuit includes a P-type and N-type semiconductor device(s) formed in a P-type and an N-type diffusion region(s), respectively, formed in the substrate. Complementary metal oxide semiconductor (CMOS) circuits can be realized from the P-type and N-type semiconductor devices. Diffusion breaks can induce strain in the diffusion regions with a magnitude of the induced strain related to a dimension of the diffusion breaks. As one example, an induced tensile strain may increase carrier mobility in N-type devices and decrease carrier mobility in P-type devices, with induced compressive strain having the opposite effect.

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