公开(公告)号：US10692875B2

公开(公告)日：2020-06-23

申请号：US16177812

申请日：2018-11-01

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wang Xiang ,  Chia-Ching Hsu ,  Chun-Sung Huang ,  Yung-Lin Tseng ,  Wei-Chang Liu ,  Shen-De Wang

IPC: H01L27/115 ,  H01L27/11524 ,  H01L27/11565 ,  H01L27/11519 ,  H01L27/1157

Abstract: A memory structure including a substrate, at least one stacked gate structure, a first spacer conductive layer, and a first contact is provided. The stacked gate structure is located on the substrate and includes a control gate. The control gate extends in a first direction. The first spacer conductive layer is located on one sidewall of the control gate and is electrically insulated from the control gate. The first spacer conductive layer includes a first merged spacer portion and a first non-merged spacer portion. A line width of the first merged spacer portion is greater than a line width of the first non-merged spacer portion. The first contact is connected to the first merged spacer portion. The memory structure can have a larger process window of contact.

公开(公告)号：US20180108837A1

公开(公告)日：2018-04-19

申请号：US15359975

申请日：2016-11-23

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chia-Ching Hsu ,  Liang Yi ,  Shen-De Wang ,  Ko-Chi Chen

IPC: H01L45/00

CPC classification number: H01L45/1675 ,  H01L45/085 ,  H01L45/1233 ,  H01L45/1266 ,  H01L45/146

Abstract: A semiconductor device is provided, including a lower conducting layer formed above a substrate, an upper conducting layer, and a memory cell structure formed on the lower conducting layer (such as formed between the lower and upper conducting layers). The memory cell structure includes a bottom electrode formed on the lower conducting layer and electrically connected to the lower conducting layer, a transitional metal oxide (TMO) layer formed on the bottom electrode, a TMO sidewall oxides formed at sidewalls of the TMO layer, a top electrode formed on the TMO layer, and spacers formed on the bottom electrode. The upper conducting layer is formed on the top electrode and electrically connected to the top electrode.

公开(公告)号：US20180033961A1

公开(公告)日：2018-02-01

申请号：US15260754

申请日：2016-09-09

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Liang Yi ,  Chia-Ching Hsu ,  Shen-De Wang ,  Ko-Chi Chen

IPC: H01L45/00 ,  H01L27/24

Abstract: A semiconductor device and a manufacturing method thereof are provided. The semiconductor device includes a substrate, a bottom metal layer, a resistive random access memory (ReRAM) cell structure, and an upper metal layer. The bottom metal layer is located above the substrate. The ReRAM cell structure is formed on the bottom metal layer. The ReRAM cell structure includes a bottom electrode, a memory cell layer, a top electrode, and a spacer. The memory cell layer is formed on the bottom electrode. The top electrode is formed on the memory cell layer. The spacer is formed on two sides of the bottom electrode, the memory cell layer and the top electrode. The upper metal layer is electrically connected to and directly contacting the top electrode.

公开(公告)号：US09799705B1

公开(公告)日：2017-10-24

申请号：US15297164

申请日：2016-10-19

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Liang Yi ,  Chia-Ching Hsu ,  Shen-De Wang ,  Ko-Chi Chen ,  Guoan Du

IPC: H01L45/00 ,  H01L27/24 ,  H01L21/768

CPC classification number: H01L27/2436 ,  H01L21/76877 ,  H01L45/04 ,  H01L45/1233 ,  H01L45/1253 ,  H01L45/146 ,  H01L45/1608 ,  H01L45/1675 ,  H01L45/1683

Abstract: The present invention provides a semiconductor device. The semiconductor device includes a contact structure disposed in a first dielectric layer, a second dielectric layer disposed on the first dielectric layer and having an opening disposed therein, a spacer disposed in the opening and partially covering the contact structure, and a resistive random-access memory (RRAM) disposed on the contact structure and directly contacting the spacer, wherein the RRAM includes a bottom electrode, a top electrode, and a switching resistance layer disposed between the bottom electrode and the top electrode.

公开(公告)号：US09659948B2

公开(公告)日：2017-05-23

申请号：US14856577

申请日：2015-09-17

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chia-Ching Hsu ,  Ko-Chi Chen ,  Shen-De Wang

IPC: H01L27/11529 ,  H01L27/11573 ,  H01L27/11531

CPC classification number: H01L27/11529 ,  H01L27/11524 ,  H01L27/11531 ,  H01L27/11536 ,  H01L27/11539 ,  H01L27/11573

Abstract: A semiconductor device includes a substrate with a memory region and a logic region, a logic gate stack, and a non-volatile gate stack. The substrate has a recess disposed in the memory region. The logic gate stack is disposed in the logic region and has a first top surface. The non-volatile gate stack is disposed in the recess and has a second top surface. The second top surface is lower than the first top surface by a step height.

公开(公告)号：US09379128B1

公开(公告)日：2016-06-28

申请号：US14809342

申请日：2015-07-27

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Liang Yi ,  Ko-Chi Chen ,  Shen-De Wang ,  Chia-Ching Hsu ,  Chun-Sung Huang ,  Wen-Peng Hsu

IPC: H01L27/115 ,  H01L29/423 ,  H01L29/66 ,  H01L29/792 ,  H01L21/28 ,  H01L21/225

CPC classification number: H01L27/11568 ,  H01L21/2253 ,  H01L21/26513 ,  H01L21/28282 ,  H01L27/1157 ,  H01L29/4234 ,  H01L29/42344 ,  H01L29/66833 ,  H01L29/792

Abstract: A split gate NVM device includes a semiconductor substrate, an ONO structure disposed on the semiconductor substrate, a first gate electrode disposed on the ONO structure, a second gate electrode disposed on the semiconductor substrate, adjacent to and insulated from the first gate electrode and the ONO structure, a first doping region with a first conductivity formed in the semiconductor substrate and adjacent to the ONO structure, a second doping region with the first conductivity formed in the semiconductor substrate and adjacent to the second gate electrode, and a third doping region with the first conductivity formed in the semiconductor substrate, disposed between the first doping region and the second doping region and adjacent to the ONO structure and the second gate electrode.

Abstract translation: 分路门NVM器件包括半导体衬底，设置在半导体衬底上的ONO结构，设置在ONO结构上的第一栅电极，设置在半导体衬底上的第二栅极，与第一栅电极相邻并绝缘， ONO结构，在半导体衬底中形成并与ONO结构相邻的具有第一导电性的第一掺杂区，在半导体衬底中形成并与第二栅电极相邻的具有第一导电性的第二掺杂区，以及第三掺杂区， 所述第一导电体形成在所述半导体衬底中，设置在所述第一掺杂区域和所述第二掺杂区域之间并且邻近所述ONO结构和所述第二栅电极。