SONOS memory cell structure and fabricating method of the same

    公开(公告)号:US12225729B2

    公开(公告)日:2025-02-11

    申请号:US18608878

    申请日:2024-03-18

    Abstract: An SONOS memory cell includes a silicon substrate. A tunnel silicon oxide layer, a silicon nitride layer and a silicon oxide layer are disposed from bottom to top on the silicon substrate. The silicon oxide layer includes two first silicon oxide layers and a second silicon oxide layer. A thickness of the silicon oxide layer is smaller than a thickness of each of the first silicon oxide layers. A control gate covers and contacts the silicon oxide layer. A first source/drain doping region and a second source/drain doping region are respectively disposed at two sides of the control gate. The silicon oxide layer has a cross section. The second silicon oxide layer is sandwiched between the two first silicon oxide layers on the cross section.

    METHOD FOR FORMING PROGRAMMABLE MEMORY

    公开(公告)号:US20240397712A1

    公开(公告)日:2024-11-28

    申请号:US18792499

    申请日:2024-08-01

    Abstract: An array of programmable memory includes a first floating gate and a second floating gate disposed on a substrate along a first direction, two spacers disposed between and parallel to the first floating gate and the second floating gate, a first word line sandwiched by one of the spacers and the adjacent first floating gate, and a second word line sandwiched by the other one of the spacers and the adjacent second floating gate, and two first spacers disposed on the substrate, wherein one of the first spacer is disposed between the first word line and the first floating gate, and another spacer is disposed between the second word line and the second floating gate, wherein each spacer has substantially the same shape as each first spacer.

    Semiconductor structure and manufacturing method thereof
    14.
    发明授权
    Semiconductor structure and manufacturing method thereof 有权
    半导体结构及其制造方法

    公开(公告)号:US09406771B1

    公开(公告)日:2016-08-02

    申请号:US14854161

    申请日:2015-09-15

    Abstract: A semiconductor structure and a manufacturing method thereof are provided. The semiconductor structure includes a substrate; a first and a second ion implantation regions of a first conductive type; a source and a drain diffusion regions formed in the first and the second ion implantation regions respectively; a channel diffusion region formed between the first and the second ion implantation regions; a gate layer disposed above the channel diffusion region and located between the source and the drain diffusion regions; and a third ion implantation region of a second conductive type formed in the gate layer, which extends in a first direction. The third ion implantation region is located above and covers two side portions of the channel diffusion region, the two side portions are adjacent to two edges, extending in a second direction perpendicular to the first direction, of the channel diffusion region.

    Abstract translation: 提供半导体结构及其制造方法。 半导体结构包括基板; 第一导电类型的第一和第二离子注入区域; 在第一和第二离子注入区域中形成的源极和漏极扩散区域; 形成在第一和第二离子注入区之间的沟道扩散区; 栅极层,其设置在所述沟道扩散区域的上方且位于所述源极和漏极扩散区域之间; 以及形成在所述栅极层中的沿第一方向延伸的第二导电类型的第三离子注入区。 第三离子注入区域位于沟道扩散区域的上方并覆盖两个侧面部分,两个侧面部分与沟道扩散区域的垂直于第一方向的第二方向延伸的两个边缘相邻。

    ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) AND FORMING METHOD THEREOF

    公开(公告)号:US20220406800A1

    公开(公告)日:2022-12-22

    申请号:US17381219

    申请日:2021-07-21

    Abstract: An array of electrically erasable programmable read only memory (EEPROM) includes a first row of floating gate, a second row of floating gate, two spacers, a first row of word line and a second row of word line. The first row of floating gate and the second row of floating gate are disposed on a substrate along a first direction. The two spacers are disposed between and parallel to the first row of floating gate and the second row of floating gate. The first row of word line is sandwiched by one of the spacers and the adjacent first row of floating gate, and the second row of word line is sandwiched by the other one of the spacers and the adjacent second row of floating gate. The present invention also provides a method of forming said array of electrically erasable programmable read only memory (EEPROM).

    Memory structure and manufacturing method thereof

    公开(公告)号:US10770565B2

    公开(公告)日:2020-09-08

    申请号:US16123868

    申请日:2018-09-06

    Abstract: A memory structure including a substrate, a first gate structure, a second gate structure, a first spacer, a second spacer, and a third spacer is provided. The first gate structure includes a first gate and a charge storage layer. The charge storage layer is disposed between the first gate and the substrate. The second gate structure is disposed on the substrate. The second gate structure includes a second gate. A height of the first gate is higher than a height of the second gate. The first spacer and the second spacer are respectively disposed on one sidewall and the other sidewall of the first gate structure. The first spacer is located between the first gate structure and the second gate structure. The third spacer is disposed on a sidewall of the first spacer and covers a portion of a top surface of the second gate.

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