公开(公告)号：US08709901B1

公开(公告)日：2014-04-29

申请号：US13864277

申请日：2013-04-17

Applicant: United Microelectronics Corp.

Inventor： Chia-Lung Chang ,  Wu-Sian Sie ,  Jei-Ming Chen ,  Wen-Yi Teng ,  Chih-Chien Liu ,  Jui-Min Lee ,  Chih-Hsun Lin

IPC: H01L21/336

CPC classification number: H01L21/76224 ,  H01L21/31053 ,  H01L21/32105

Abstract: The present invention relates to a method of forming an isolation structure, in which, a trench is formed in a substrate through a hard mask, and deposition, etch back, deposition, planarization, and etch back are performed in the order to form an isolation material layer of the isolation structure after the hard mask is removed. A silicon layer may be formed to cover the trench and original surface of the substrate before the former deposition, or to cover a part of the trench and original surface of the substrate after the former etch back and before the later deposition, to serve as a stop layer for the planarization process. Voids existing within the isolation material layer can be exposed or removed by partially etching the isolation material layer by the former etch back. The later deposition can be performed with a less aspect ratio to avoid forming voids.

Abstract translation: 本发明涉及一种形成隔离结构的方法，其中通过硬掩模在衬底中形成沟槽，并且进行沉积，回蚀刻，沉积，平坦化和回蚀以形成隔离 去除硬掩模后隔离结构的材料层。 可以形成硅层以在前一次沉积之前覆盖衬底的沟槽和原始表面，或者在前面的回蚀刻和稍后的沉积之前覆盖衬底的一部分沟槽和原始表面，以用作 停止层进行平面化处理。 存在于隔离材料层内的空隙可以通过由前面的回蚀部分蚀刻隔离材料层而被暴露或去除。 可以以较小的纵横比进行后续沉积以避免形成空隙。

公开(公告)号：US10672864B2

公开(公告)日：2020-06-02

申请号：US16297733

申请日：2019-03-11

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Tzu-Chin Wu ,  Wei-Hsin Liu ,  Yi-Wei Chen ,  Chia-Lung Chang ,  Jui-Min Lee ,  Po-Chun Chen ,  Li-Wei Feng ,  Ying-Chiao Wang ,  Wen-Chieh Lu ,  Chien-Ting Ho ,  Tsung-Ying Tsai ,  Kai-Ping Chen

IPC: H01L49/02 ,  H01L29/94 ,  H01L27/108

Abstract: A semiconductor memory device includes a semiconductor substrate, a first support layer, a first electrode, a capacitor dielectric layer, and a second electrode. The first support layer is disposed on the semiconductor substrate. The first electrode is disposed on the semiconductor substrate and penetrates the first support layer. The capacitor dielectric layer is disposed on the first electrode. The second electrode is disposed on the semiconductor substrate, and at least a part of the capacitor dielectric layer is disposed between the first electrode and the second electrode. The first support layer includes a carbon doped nitride layer, and a carbon concentration of a bottom portion of the first support layer is higher than a carbon concentration of a top portion of the first support layer.

公开(公告)号：US10453677B2

公开(公告)日：2019-10-22

申请号：US15644821

申请日：2017-07-09

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Cheng-Hsu Huang ,  Jui-Min Lee ,  Ching-Hsiang Chang ,  Yi-Wei Chen ,  Wei-Hsin Liu ,  Shih-Fang Tzou

IPC: H01L21/02 ,  H01L21/76 ,  H01L21/762 ,  H01L27/108

Abstract: A method of forming an oxide layer includes the following steps. A substrate is provided. A surface of the substrate is treated to form an oxygen ion-rich surface. A spin-on-dielectric layer is formed on the oxygen ion-rich surface of the substrate. The present invention also provides a method of forming an oxide layer including the following steps. A substrate is provided. A surface of the substrate is treated with a hydrogen peroxide (H2O2) solution or a surface of the substrate is treated with oxygen containing gas, to form an oxygen ion-rich surface. A spin-on-dielectric layer is formed on the oxygen ion-rich surface of the substrate.

公开(公告)号：US20190221571A1

公开(公告)日：2019-07-18

申请号：US15885729

申请日：2018-01-31

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Wei-Hsin Liu ,  Cheng-Hsu Huang ,  Jui-Min Lee ,  Yi-Wei Chen

IPC: H01L27/108 ,  H01L23/532 ,  H01L23/528 ,  H01L21/3205 ,  H01L21/768 ,  H01L21/285

CPC classification number: H01L27/10894 ,  H01L21/28556 ,  H01L21/32053 ,  H01L21/32055 ,  H01L21/7685 ,  H01L21/76856 ,  H01L21/76864 ,  H01L21/76879 ,  H01L23/528 ,  H01L23/53266 ,  H01L23/53271 ,  H01L23/5329 ,  H01L27/10823 ,  H01L27/10885 ,  H01L27/10888 ,  H01L27/10897

Abstract: A semiconductor memory device includes a semiconductor substrate and a patterned conductive structure. The patterned conductive structure is disposed on the semiconductor substrate. The patterned conductive structure includes a first silicon conductive layer, a second silicon conductive layer, an interface layer, a barrier layer, and a metal conductive layer. The second silicon conductive layer is disposed on the first silicon conductive layer. The interface layer is disposed between the first silicon conductive layer and the second silicon conductive layer, and the interface layer includes oxygen. The barrier layer is disposed on the second silicon conductive layer. The metal conductive layer is disposed on the barrier layer.

公开(公告)号：US20190172722A1

公开(公告)日：2019-06-06

申请号：US16158316

申请日：2018-10-12

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Feng-Yi Chang ,  Wei-Hsin Liu ,  Ying-Chih Lin ,  Jui-Min Lee ,  Gang-Yi Lin ,  Fu-Che Lee

IPC: H01L21/311 ,  H01L21/308 ,  H01L21/033 ,  H01L27/105

CPC classification number: H01L21/31144 ,  H01L21/0337 ,  H01L21/0338 ,  H01L21/3086 ,  H01L21/3088 ,  H01L27/1052

Abstract: A method of forming a semiconductor memory device includes following steps. First of all, a target layer is provided, and a mask structure is formed on the target layer, with the mask structure including a first mask layer a sacrificial layer and a second mask layer. The first mask layer and the second mask layer include the same material but in different containing ratio. Next, the second mask layer and the sacrificial layer are patterned, to form a plurality of mandrels. Then, a plurality of spacer patterns are formed to surround the mandrels, and then transferred into the first mask layer to form a plurality of opening not penetrating the first mask layer. Finally, the first mask layer is used as a mask to etch the target layer, to form a plurality of target patterns.

公开(公告)号：US10312080B2

公开(公告)日：2019-06-04

申请号：US15859750

申请日：2018-01-02

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Mei-Ling Chen ,  Wei-Hsin Liu ,  Yi-Wei Chen ,  Ching-Hsiang Chang ,  Jui-Min Lee ,  Chia-Lung Chang ,  Tzu-Chin Wu ,  Shih-Fang Tzou

IPC: H01L21/02

Abstract: The present invention provides a method for forming an amorphous silicon multiple layer structure, the method comprises the flowing steps: first, a substrate material layer is provided, next, a first amorphous silicon layer is formed on the substrate material layer, wherein the first amorphous silicon layer includes a plurality of hydrogen atoms disposed therein, afterwards, an UV curing process is performed to the first amorphous silicon layer, so as to remove the hydrogen atoms from the first amorphous silicon layer, finally, a second amorphous silicon layer is formed on the first amorphous silicon layer.

公开(公告)号：US20180366323A1

公开(公告)日：2018-12-20

申请号：US15644821

申请日：2017-07-09

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Cheng-Hsu Huang ,  Jui-Min Lee ,  Ching-Hsiang Chang ,  Yi-Wei Chen ,  Wei-Hsin Liu ,  Shih-Fang Tzou

IPC: H01L21/02 ,  H01L21/762 ,  H01L27/108

CPC classification number: H01L21/02282 ,  H01L21/0206 ,  H01L21/02307 ,  H01L21/02312 ,  H01L21/02323 ,  H01L21/02337 ,  H01L21/76229 ,  H01L21/76237 ,  H01L27/10814 ,  H01L27/10823 ,  H01L27/10876 ,  H01L27/10885 ,  H01L27/10888 ,  H01L27/10891 ,  H01L27/10894 ,  H01L27/10897

Abstract: A method of forming an oxide layer includes the following steps. A substrate is provided. A surface of the substrate is treated to form an oxygen ion-rich surface. A spin-on-dielectric layer is formed on the oxygen ion-rich surface of the substrate. The present invention also provides a method of forming an oxide layer including the following steps. A substrate is provided. A surface of the substrate is treated with a hydrogen peroxide (H2O2) solution or a surface of the substrate is treated with oxygen containing gas, to form an oxygen ion-rich surface. A spin-on-dielectric layer is formed on the oxygen ion-rich surface of the substrate.

公开(公告)号：US20180308923A1

公开(公告)日：2018-10-25

申请号：US15927103

申请日：2018-03-21

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Tzu-Chin Wu ,  Wei-Hsin Liu ,  Yi-Wei Chen ,  Chia-Lung Chang ,  Jui-Min Lee ,  Po-Chun Chen ,  Li-Wei Feng ,  Ying-Chiao Wang ,  Wen-Chieh Lu ,  Chien-Ting Ho ,  Tsung-Ying Tsai ,  Kai-Ping Chen

IPC: H01L49/02 ,  H01L27/108 ,  H01L29/94

CPC classification number: H01L28/82 ,  H01L27/10808 ,  H01L27/10855 ,  H01L28/87 ,  H01L29/94

Abstract: A semiconductor memory device includes a semiconductor substrate, a first support layer, a first electrode, a capacitor dielectric layer, and a second electrode. The first support layer is disposed on the semiconductor substrate. The first electrode is disposed on the semiconductor substrate and penetrates the first support layer. The capacitor dielectric layer is disposed on the first electrode. The second electrode is disposed on the semiconductor substrate, and at least a part of the capacitor dielectric layer is disposed between the first electrode and the second electrode. The first support layer includes a carbon doped nitride layer, and a carbon concentration of a bottom portion of the first support layer is higher than a carbon concentration of a top portion of the first support layer.

公开(公告)号：US10475900B2

公开(公告)日：2019-11-12

申请号：US15869005

申请日：2018-01-11

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Kai-Jiun Chang ,  Tsun-Min Cheng ,  Chih-Chieh Tsai ,  Jui-Min Lee ,  Yi-Wei Chen ,  Chia-Lung Chang ,  Wei-Hsin Liu

IPC: H01L29/49 ,  H01L21/285 ,  H01L29/66 ,  H01L27/108 ,  H01L21/28

Abstract: A method for manufacturing a semiconductor device with a cobalt silicide film is provided in the present invention. The method includes the steps of providing a silicon structure with an interlayer dielectric formed thereon, forming a contact hole in the interlayer dielectric to expose the silicon structure, depositing a cobalt film on the exposed silicon structure at a temperature between 300° C.-400° C., wherein a cobalt protecting film is in-situ formed on the surface of the cobalt film, performing a rapid thermal process to transform the cobalt film into a cobalt silicide film, and removing untransformed cobalt film.

公开(公告)号：US10262895B2

公开(公告)日：2019-04-16

申请号：US15859766

申请日：2018-01-02

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Mei-Ling Chen ,  Wei-Hsin Liu ,  Yi-Wei Chen ,  Chia-Lung Chang ,  Jui-Min Lee ,  Ching-Hsiang Chang ,  Tzu-Chin Wu ,  Shih-Fang Tzou

IPC: H01L21/02 ,  H01L21/768 ,  H01L27/108 ,  H01L21/8234 ,  H01L49/02

Abstract: The present invention provides a method for fabricating a semiconductor device, comprising at least the steps of: providing a substrate in which a memory region and a peripheral region are defined, the memory region includes a plurality of memory cells, each memory cell includes at least a first transistor and a capacitor, the peripheral region compress a second transistor, a first insulating layer is formed within the memory region and the peripheral region by an atomic layer deposition process, covering the capacitor of the memory cells in the memory region and the second transistor in the peripheral region, and a second insulating layer is formed, overlying the first insulating layer and the peripheral region. Finally, a contact structure is formed within the second insulating layer, and electrically connecting the second transistor.