Memory device and methods of making such a memory device

    公开(公告)号:US11437568B2

    公开(公告)日:2022-09-06

    申请号:US16836434

    申请日:2020-03-31

    Abstract: One illustrative memory cell disclosed herein includes at least one layer of insulating material having a first opening and an internal sidewall spacer positioned within the first opening, wherein the internal sidewall spacer includes a spacer opening. The memory cell also includes a bottom electrode positioned within the spacer opening, a memory state material positioned above an upper surface of the bottom electrode and above an upper surface of the internal sidewall spacer, and a top electrode positioned above the memory state material.

    Transistors with source/drain regions having sections of epitaxial semiconductor material

    公开(公告)号:US11164795B2

    公开(公告)日:2021-11-02

    申请号:US16828273

    申请日:2020-03-24

    Abstract: Structures for a field-effect transistor and methods of forming a structure for a field-effect transistor. First and second gate structures extend over the semiconductor body. A source/drain region is positioned laterally between the first gate structure and the second gate structure. The source/drain region includes a semiconductor layer having a first section, a second section, and a third section. A first portion of the semiconductor body is positioned between the first section of the semiconductor layer and the second section of the semiconductor layer. A second portion of the semiconductor body is positioned between the second section of the semiconductor layer and the third section of the semiconductor layer.

    TRANSISTORS WITH SOURCE/DRAIN REGIONS HAVING SECTIONS OF EPITAXIAL SEMICONDUCTOR MATERIAL

    公开(公告)号:US20210305103A1

    公开(公告)日:2021-09-30

    申请号:US16828273

    申请日:2020-03-24

    Abstract: Structures for a field-effect transistor and methods of forming a structure for a field-effect transistor. First and second gate structures extend over the semiconductor body. A source/drain region is positioned laterally between the first gate structure and the second gate structure. The source/drain region includes a semiconductor layer having a first section, a second section, and a third section. A first portion of the semiconductor body is positioned between the first section of the semiconductor layer and the second section of the semiconductor layer. A second portion of the semiconductor body is positioned between the second section of the semiconductor layer and the third section of the semiconductor layer.

    TRANSISTORS WITH A SECTIONED EPITAXIAL SEMICONDUCTOR LAYER

    公开(公告)号:US20210288182A1

    公开(公告)日:2021-09-16

    申请号:US16819832

    申请日:2020-03-16

    Abstract: Structures for a field-effect transistor and methods of forming a structure for a field-effect transistor. First and second gate structures extend over the semiconductor body, a second gate structure that extends over the semiconductor body. A source/drain region is positioned laterally between the first gate structure and the second gate structure. The source/drain region includes a first semiconductor layer and a second semiconductor layer. The first semiconductor layer has a first section and a second section. The second semiconductor layer is positioned laterally between the first section of the first semiconductor layer and the second section of the first semiconductor layer.

    TRANSISTORS WITH SEPARATELY-FORMED SOURCE AND DRAIN

    公开(公告)号:US20210249508A1

    公开(公告)日:2021-08-12

    申请号:US17243832

    申请日:2021-04-29

    Abstract: Structures for a field-effect transistor and methods of forming a structure for a field-effect transistor. A gate structure is arranged over a channel region of a semiconductor body. A first source/drain region is coupled to a first portion of the semiconductor body, and a second source/drain region is located in a second portion the semiconductor body. The first source/drain region includes an epitaxial semiconductor layer containing a first concentration of a dopant. The second source/drain region contains a second concentration of the dopant. The channel region is positioned in the semiconductor body between the first source/drain region and the second source/drain region.

    TRANSISTORS WITH A HYBRID SOURCE OR DRAIN

    公开(公告)号:US20210242344A1

    公开(公告)日:2021-08-05

    申请号:US16781236

    申请日:2020-02-04

    Abstract: Structures for a field-effect transistor and methods of forming a structure for a field-effect transistor. A gate structure extends over a channel region in a semiconductor body. The gate structure has a first side surface and a second side surface opposite the first side surface. A first source/drain region is positioned adjacent to the first side surface of the gate structure and a second source/drain region is positioned adjacent to the second side surface of the gate structure. The first source/drain region includes a first epitaxial semiconductor layer, and the second source/drain region includes a second epitaxial semiconductor layer. A first top surface of the first epitaxial semiconductor layer is positioned at a first distance from the channel region, a second top surface of the second epitaxial semiconductor layer is positioned at a second distance from the channel region, and the first distance is greater than the second distance.

    Transistors with separately-formed source and drain

    公开(公告)号:US11075268B2

    公开(公告)日:2021-07-27

    申请号:US16541600

    申请日:2019-08-15

    Abstract: Structures for a field-effect transistor and methods of forming a structure for a field-effect transistor. A gate structure is arranged over a channel region of a semiconductor body. A first source/drain region is coupled to a first portion of the semiconductor body, and a second source/drain region is located in a second portion the semiconductor body. The first source/drain region includes an epitaxial semiconductor layer containing a first concentration of a dopant. The second source/drain region contains a second concentration of the dopant. The channel region is positioned in the semiconductor body between the first source/drain region and the second source/drain region.

    Semiconductor structures in a wide gate pitch region of semiconductor devices

    公开(公告)号:US11043566B2

    公开(公告)日:2021-06-22

    申请号:US16599116

    申请日:2019-10-10

    Abstract: A semiconductor device is provided that includes a substrate, an active region, a pair of gates, a plurality of semiconductor structures and a plurality of pillar structures. The active region is over the substrate. The pair of gates is formed over the active region, and each gate of the pair of gates includes a gate structure and a pair of spacer structures disposed on sidewalls of the gate structure. The plurality of semiconductor structures is arranged between the pair of gates in an alternating arrangement configuration having a first width and a second width. The first width is substantially equal to a width of the gate structure. The plurality of semiconductor structures is separated by the plurality of pillar structures.

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