公开(公告)号：US11769791B2

公开(公告)日：2023-09-26

申请号：US17308381

申请日：2021-05-05

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Ching-Sheng Chu ,  Dun-Nian Yaung ,  Yu-Cheng Tsai ,  Meng-Hsien Lin ,  Ching-Chung Su ,  Jen-Cheng Liu ,  Wen-De Wang ,  Guan-Hua Chen

IPC: H01L29/66 ,  H01L29/94 ,  H01L49/02

CPC classification number: H01L28/75 ,  H01L28/87 ,  H01L28/88 ,  H01L28/92 ,  H01L29/66181 ,  H01L29/945 ,  H01L28/40

Abstract: The present disclosure, in some embodiments, relates to a method of forming a capacitor structure. The method includes forming a capacitor dielectric layer over a lower electrode layer, and forming an upper electrode layer over the capacitor dielectric layer. The upper electrode layer is etched to define an upper electrode and to expose a part of the capacitor dielectric layer. A spacer structure is formed over horizontally extending surfaces of the upper electrode layer and the capacitor dielectric layer and also along sidewalls of the upper electrode. The spacer structure is etched to remove the spacer structure from over the horizontally extending surfaces of the upper electrode layer and the capacitor dielectric layer and to define a spacer. The capacitor dielectric layer and the lower electrode layer are etched according to the spacer to define a capacitor dielectric and a lower electrode.

公开(公告)号：US20170025381A1

公开(公告)日：2017-01-26

申请号：US14806888

申请日：2015-07-23

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Cheng Tsai ,  Chun-Chieh Chuang ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Chih-Hui Huang ,  Yan-Chih Lu ,  Ju-Shi Chen

IPC: H01L25/065 ,  H01L23/528 ,  H01L23/532 ,  H01L21/02 ,  H01L25/00 ,  H01L21/768 ,  H01L21/321 ,  H01L21/311 ,  H01L23/00 ,  H01L23/522

CPC classification number: H01L25/0657 ,  H01L21/0214 ,  H01L21/02164 ,  H01L21/0217 ,  H01L21/31111 ,  H01L21/3212 ,  H01L21/76807 ,  H01L21/7684 ,  H01L21/76843 ,  H01L21/76871 ,  H01L21/76877 ,  H01L21/76883 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/53238 ,  H01L24/80 ,  H01L24/89 ,  H01L25/50 ,  H01L2224/05025 ,  H01L2224/05147 ,  H01L2224/08145 ,  H01L2224/215 ,  H01L2224/80895 ,  H01L2224/80896 ,  H01L2224/94 ,  H01L2225/06524 ,  H01L2924/01013 ,  H01L2924/01022 ,  H01L2924/01025 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/0104 ,  H01L2924/01072 ,  H01L2224/80

Abstract: An integrated circuit (IC) using a copper-alloy based hybrid bond is provided. The IC comprises a pair of semiconductor structures vertically stacked upon one another. The pair of semiconductor structures comprise corresponding dielectric layers and corresponding metal features arranged in the dielectric layers. The metal features comprise a copper alloy having copper and a secondary metal. The IC further comprises a hybrid bond arranged at an interface between the semiconductor structures. The hybrid bond comprises a first bond bonding the dielectric layers together and a second bond bonding the metal features together. The second bond comprises voids arranged between copper grains of the metal features and filled by the secondary metal. A method for bonding a pair of semiconductor structures together using the copper-alloy based hybrid bond is also provided.

Abstract translation: 提供了使用基于铜合金的混合键的集成电路（IC）。 IC包括彼此垂直堆叠的一对半导体结构。 该对半导体结构包括布置在电介质层中的对应介电层和相应的金属特征。 金属特征包括具有铜和二次金属的铜合金。 IC还包括布置在半导体结构之间的界面处的混合键。 混合键包括将电介质层结合在一起的第一键和将金属特征粘合在一起的第二键。 第二结合包括布置在金属特征的铜颗粒之间并由二次金属填充的空隙。 还提供了使用基于铜合金的混合键将一对半导体结构结合在一起的方法。

公开(公告)号：US20220238636A1

公开(公告)日：2022-07-28

申请号：US17308381

申请日：2021-05-05

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Ching-Sheng Chu ,  Dun-Nian Yaung ,  Yu-Cheng Tsai ,  Meng-Hsien Lin ,  Ching-Chung Su ,  Jen-Cheng Liu ,  Wen-De Wang ,  Guan-Hua Chen

IPC: H01L49/02

Abstract: The present disclosure, in some embodiments, relates to a method of forming a capacitor structure. The method includes forming a capacitor dielectric layer over a lower electrode layer, and forming an upper electrode layer over the capacitor dielectric layer. The upper electrode layer is etched to define an upper electrode and to expose a part of the capacitor dielectric layer. A spacer structure is formed over horizontally extending surfaces of the upper electrode layer and the capacitor dielectric layer and also along sidewalls of the upper electrode. The spacer structure is etched to remove the spacer structure from over the horizontally extending surfaces of the upper electrode layer and the capacitor dielectric layer and to define a spacer. The capacitor dielectric layer and the lower electrode layer are etched according to the spacer to define a capacitor dielectric and a lower electrode.

公开(公告)号：US09728521B2

公开(公告)日：2017-08-08

申请号：US14806888

申请日：2015-07-23

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Cheng Tsai ,  Chun-Chieh Chuang ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Chih-Hui Huang ,  Yan-Chih Lu ,  Ju-Shi Chen

IPC: H01L25/065 ,  H01L23/528 ,  H01L23/532 ,  H01L25/00 ,  H01L23/00 ,  H01L23/522 ,  H01L21/768 ,  H01L21/321 ,  H01L21/311 ,  H01L21/02

CPC classification number: H01L25/0657 ,  H01L21/0214 ,  H01L21/02164 ,  H01L21/0217 ,  H01L21/31111 ,  H01L21/3212 ,  H01L21/76807 ,  H01L21/7684 ,  H01L21/76843 ,  H01L21/76871 ,  H01L21/76877 ,  H01L21/76883 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/53238 ,  H01L24/80 ,  H01L24/89 ,  H01L25/50 ,  H01L2224/05025 ,  H01L2224/05147 ,  H01L2224/08145 ,  H01L2224/215 ,  H01L2224/80895 ,  H01L2224/80896 ,  H01L2224/94 ,  H01L2225/06524 ,  H01L2924/01013 ,  H01L2924/01022 ,  H01L2924/01025 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/0104 ,  H01L2924/01072 ,  H01L2224/80

Abstract: An integrated circuit (IC) using a copper-alloy based hybrid bond is provided. The IC comprises a pair of semiconductor structures vertically stacked upon one another. The pair of semiconductor structures comprise corresponding dielectric layers and corresponding metal features arranged in the dielectric layers. The metal features comprise a copper alloy having copper and a secondary metal. The IC further comprises a hybrid bond arranged at an interface between the semiconductor structures. The hybrid bond comprises a first bond bonding the dielectric layers together and a second bond bonding the metal features together. The second bond comprises voids arranged between copper grains of the metal features and filled by the secondary metal. A method for bonding a pair of semiconductor structures together using the copper-alloy based hybrid bond is also provided.