Patents by Inventor Dian-Hau Chen
Dian-Hau Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240387354Abstract: A method of forming a semiconductor arrangement includes forming a first capacitor in a first voltage domain and forming a second capacitor in the first voltage domain. The first capacitor is connected in parallel with the second capacitor. A third capacitor and a fourth capacitor are formed in a second voltage domain. The third capacitor is connected in series with the fourth capacitor. The first capacitor and the second capacitor are connected in parallel with a supply terminal of the first voltage domain and a reference terminal of the first voltage domain. The fourth capacitor is connected to a supply terminal of the second voltage domain. The third capacitor is connected to a reference terminal of the second voltage domain.Type: ApplicationFiled: July 26, 2024Publication date: November 21, 2024Inventors: Wan-Yu LO, Chung-Hsing WANG, Chin-Shen LIN, Kuo-Nan YANG, Hsiang-Ku SHEN, Dian-Hau CHEN
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Publication number: 20240389358Abstract: A method of forming a semiconductor device includes following steps. A sacrificial layer is formed in an opening of a substrate. A first doped region is formed in the opening over the sacrificial layer. The substrate is flipped. A portion of the substrate is removed to expose the sacrificial layer. The sacrificial layer is replaced with a first contact.Type: ApplicationFiled: July 28, 2024Publication date: November 21, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsiang-Ku Shen, Liang-Wei Wang, Dian-Hau Chen, Yen-Ming Chen
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Publication number: 20240386932Abstract: A semiconductor structure includes a third metal layer immediately above a second metal layer that is over a first metal layer. The second metal layer includes magnetic tunneling junction (MTJ) devices in a memory region and a first conductive feature in a logic region. Each MTJ device includes a bottom electrode and an MTJ stack over the bottom electrode. The third metal layer includes a first via electrically connecting to the first conductive feature, and a slot via over and electrically connecting to the MTJ stack of the MTJ devices. The slot via occupies space extending continuously and laterally from a first one to a last one of the MTJ devices. The first via is as thin as or thinner than the slot via. The third metal layer further includes second and third conductive features electrically connecting to the first via and the slot via, respectively.Type: ApplicationFiled: July 25, 2024Publication date: November 21, 2024Inventors: Chih-Fan HUANG, Yen-Ming CHEN, Liang-Wei WANG, Dian-Hau CHEN, Hsiang-Ku SHEN
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Publication number: 20240379734Abstract: A semiconductor device includes a metal-insulator-metal (MIM) capacitor. The MIM capacitor includes: electrodes including one or more first electrodes and one or more second electrodes; and one or more insulating layers disposed between adjacent electrodes. The MIM capacitor is disposed in an interlayer dielectric (ILD) layer disposed over a substrate. The one or more first electrodes are connected to a side wall of a first via electrode disposed in the ILD layer, and the one or more second electrodes are connected to a side wall of a second via electrode disposed in the ILD layer. In one or more of the foregoing or following embodiments, the one or more insulating layers include a high-k dielectric material.Type: ApplicationFiled: July 24, 2024Publication date: November 14, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Tsung-Chieh HSIAO, Hsiang-Ku SHEN, Yuan-Yang HSIAO, Ying-Yao LAI, Dian-Hau CHEN
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Publication number: 20240379361Abstract: A semiconductor device structure and a formation method are provided. The method includes forming an opening in a semiconductor body, and the semiconductor body is p-type doped. The method also includes introducing n-type dopants into the semiconductor body to form a modified portion near the opening, and the modified portion is p-type doped. The method further includes forming a dielectric layer along the sidewalls and the bottom of the opening. In addition, the method includes forming a conductive structure over the dielectric layer to fill the opening.Type: ApplicationFiled: May 11, 2023Publication date: November 14, 2024Inventors: Chih-Chuan SU, Liang-Wei WANG, Tsung-Chieh HSIAO, Dian-Hau CHEN
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Publication number: 20240379529Abstract: A metal-insulator-metal (MIM) structure and methods of forming the same for reducing the accumulation of external stress at the corners of the conductor layers are disclosed herein. An exemplary device includes a substrate that includes an active semiconductor device. A stack of dielectric layers is disposed over the substrate. A lower contact is disposed over the stack of dielectric layers. A passivation layer is disposed over the lower contact. A MIM structure is disposed over the passivation layer, the MIM structure including a first conductor layer, a second conductor layer disposed over the first conductor layer, and a third conductor layer disposed over the second conductor layer. A first insulator layer is disposed between the first conductor layer and the second conductor layer. A second insulator layer is disposed between the second conductor layer and the third conductor layer. One or more corners of the third conductor layer are rounded.Type: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Inventors: Yuan-Yang Hsiao, Hsiang-Ku Shen, Dian-Hau Chen, Hsiao Ching-Wen, Yao-Chun Chuang
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Publication number: 20240379675Abstract: Semiconductor structures and fabrication processes are provided. A semiconductor according to the present disclosure includes a first region including a first fin, a second fin, and a third fin extending along a first direction, and a second region abutting the first region. The second region includes a fourth fin and a fifth fin extending along the first direction. The first fin is aligned with the fourth fin and the second fin is aligned with the fifth fin. The third fin terminates at an interface between the first region and the second region.Type: ApplicationFiled: July 24, 2024Publication date: November 14, 2024Inventors: Chih-Hsin Yang, Yen-Ming Chen, Dian-Hau Chen
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Publication number: 20240371920Abstract: A device structure, along with methods of forming such, are described. The device structure includes a structure, a first passivation layer disposed on the structure, a buffer layer disposed on the first passivation layer, a barrier layer disposed on a first portion of the buffer layer, a redistribution layer disposed over the barrier layer, an adhesion layer disposed on the barrier layer and on side surfaces of the redistribution layer, and a second passivation layer disposed on a second portion of the buffer layer. The second passivation layer is in contact with the barrier layer, the adhesion layer, and the redistribution layer.Type: ApplicationFiled: July 20, 2024Publication date: November 7, 2024Inventors: Tsung-Chieh HSIAO, Hsiang-Ku SHEN, Yuan-Yang HSIAO, Ying-Yao LAI, Dian-Hau CHEN
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Publication number: 20240365564Abstract: Semiconductor device and methods of forming the same are provided. A semiconductor device according to one embodiment includes a first source/drain feature and a second source/drain feature, a first metal line disposed in a first dielectric layer and electrically connected to the first source/drain feature, a second metal line disposed in the first dielectric layer and electrically connected to the second source/drain feature, and a first memory element disposed over the first dielectric layer and electrically connected to the first source/drain feature by way of the first metal line. A width of the first metal line is different from a width of the second metal line. By changing the widths of the first metal line and the second metal line, a source line series resistance of a semiconductor device can be advantageously reduced without changing a pitch of two metal lines.Type: ApplicationFiled: July 10, 2024Publication date: October 31, 2024Inventors: Chih-Fan Huang, Wen-Chiung Tu, Liang-Wei Wang, Dian-Hau Chen, Yen-Ming Chen
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Patent number: 12133469Abstract: In a method of manufacturing a semiconductor device, a cell structure is formed. The cell structure includes a bottom electrode, a magnetic tunnel junction (MTJ) stack disposed on the bottom electrode and a hard mask layer disposed on the MTJ stack. A first insulating cover layer is formed over sidewall of the MTJ stack. A second insulating cover layer is formed over the first insulating cover layer and the hard mask layer. A first interlayer dielectric (ILD) layer is formed. The hard mask layer is exposed by etching the first ILD layer and the second insulating cover layer. A second ILD layer is formed. A contact opening is formed in the second ILD layer by patterning the second ILD layer and removing the hard mask layer. A conductive layer is formed in the contact opening so that the conductive layer contacts the MTJ stack.Type: GrantFiled: September 28, 2021Date of Patent: October 29, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Tsung-Chieh Hsiao, Yu-Feng Yin, Liang-Wei Wang, Dian-Hau Chen
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Publication number: 20240355672Abstract: Embodiments of the present disclosure provide methods of forming a RDL structure with a flat passivation surface. Some embodiments provide a stop layer for chemical mechanical polishing disposed under a passivation layer. Some embodiments provide an extra thickness of passivation deposition and a sacrificial passivation layer for passivation polishing. Some embodiments provide a modified RDL pattern by inserting dummy pattern objects to adjust pattern density.Type: ApplicationFiled: August 17, 2023Publication date: October 24, 2024Inventors: Zhen De MA, Chih-Pin CHIU, Lee-Wen HSU, Liang-Wei WANG, Dian-Hau CHEN
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Publication number: 20240355766Abstract: A first bond pad of a first device and a second bond pad of a second device are implanted with metal ions. The first and second semiconductor device are bonded together using a direct metal-to-metal bond and an overlay offset occurs between the bond pads such that a portion of the first bond pad and a portion of the second bond pad overlaps and contacts a dielectric material layer. During the bonding process, however, diffusion of the metal ions provides a barrier layer at the interface of the bond pads and the dielectric layers.Type: ApplicationFiled: August 11, 2023Publication date: October 24, 2024Inventors: Chih-Pin Chiu, Yu-Bey Wu, Dian-Hau Chen
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Publication number: 20240355813Abstract: A semiconductor device includes a transistor structure disposed over a substrate, a first interlayer dielectric (ILD) layer disposed over the transistor structure, a second ILD layer disposed over the first ILD layer, and a first resistor wire disposed on the second ILD layer, and a second resistor wire disposed on the second ILD layer. A sheet resistance of the first resistor wire is different from a sheet resistance of the second resistor wire.Type: ApplicationFiled: July 2, 2024Publication date: October 24, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wen-Tzu CHEN, Szu-Ping TUNG, Guan-Yao TU, Hsiang-Ku SHEN, Chen-Chiu HUANG, Dian-Hau CHEN
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Publication number: 20240347488Abstract: A chip structure is provided. The chip structure includes a semiconductor substrate. The chip structure includes a first conductive layer over the first dielectric layer. The chip structure includes a conductive via passing through the first conductive layer and electrically connected to the first conductive layer. The chip structure includes a conductive pad over and in direct contact with the conductive via. The chip structure includes a second conductive layer over and spaced apart from the first conductive layer. The chip structure includes a first dielectric layer conformally covering a second lower portion of a sidewall of the second conductive layer. The chip structure includes a third conductive layer over the first dielectric layer.Type: ApplicationFiled: June 25, 2024Publication date: October 17, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chih-Fan HUANG, Mao-Nan WANG, Hui-Chi CHEN, Dian-Hau CHEN, Yen-Ming CHEN
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Publication number: 20240329113Abstract: A redistribution structure is provided. A redistribution structure according to the present disclosure includes a first dielectric layer, a mesh metal feature disposed in the first dielectric layer and including a base portion and a frame portion surrounding the base portion, a second dielectric layer disposed over the first dielectric layer and the mesh metal feature, a redistribution feature disposed over the second dielectric layer, a passivation structure disposed over the redistribution feature and the second dielectric layer, a pad opening extending through the passivation structure to expose a top surface of the redistribution feature. The redistribution feature includes a plurality of contact vias that extend through the second dielectric layer to land on the frame portion of the mesh metal feature.Type: ApplicationFiled: July 25, 2023Publication date: October 3, 2024Inventors: Chih-Pin Chiu, Zhen De Ma, Lee-Wen Hsu, Liang-Wei Wang, Dian-Hau Chen
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Patent number: 12107041Abstract: A metal-insulator-metal (MIM) structure and methods of forming the same for reducing the accumulation of external stress at the corners of the conductor layers are disclosed herein. An exemplary device includes a substrate that includes an active semiconductor device. A stack of dielectric layers is disposed over the substrate. A lower contact is disposed over the stack of dielectric layers. A passivation layer is disposed over the lower contact. A MIM structure is disposed over the passivation layer, the MIM structure including a first conductor layer, a second conductor layer disposed over the first conductor layer, and a third conductor layer disposed over the second conductor layer. A first insulator layer is disposed between the first conductor layer and the second conductor layer. A second insulator layer is disposed between the second conductor layer and the third conductor layer. One or more corners of the third conductor layer are rounded.Type: GrantFiled: July 26, 2023Date of Patent: October 1, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yuan-Yang Hsiao, Hsiang-Ku Shen, Dian-Hau Chen, Hsiao Ching-Wen, Yao-Chun Chuang
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Publication number: 20240312840Abstract: Through via structures and methods of fabrication thereof are disclosed herein. An exemplary method includes forming a trench that extends through an insulation layer and into a substrate. The substrate has a first side (e.g., frontside) and a second side (e.g., backside). The insulation layer is disposed over the first side of the substrate. The method includes filling the trench with a dielectric material and performing a thinning process on the second side of the substrate that exposes the dielectric material. After the thinning process and removing the dielectric material from the trench, the method includes forming an electrically conductive structure (e.g., a barrier liner that wraps an electrically conductive plug) in the trench that extends through the substrate from the first side to the second side. A portion of the barrier liner that forms a top of the electrically conductive structure is disposed in the insulation layer.Type: ApplicationFiled: July 10, 2023Publication date: September 19, 2024Inventors: Lee-Wen Hsu, Liang-Wei Wang, Chih-Pin Chiu, Dian-Hau Chen
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Publication number: 20240312885Abstract: Semiconductor devices and methods of forming the same are provided. In one embodiment, a semiconductor device includes a redistribution layer including a first conductive feature and a second conductive feature, a first contact feature disposed over and electrically coupled to the first conductive feature, a second contact feature disposed over and electrically coupled to the second conductive feature, and a passivation feature extending from between the first conductive feature and the second conductive feature between the first contact feature and the second contact feature. The passivation feature includes a dielectric feature and a dielectric layer. The dielectric layer is disposed on a planar top surface of the dielectric feature and a composition of the dielectric feature is different from a composition of the dielectric layer.Type: ApplicationFiled: May 23, 2024Publication date: September 19, 2024Inventors: Hsiang-Ku Shen, Chun-Li Lin, Dian-Hau Chen
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Patent number: 12080753Abstract: A device structure, along with methods of forming such, are described. The device structure includes a structure, a first passivation layer disposed on the structure, a buffer layer disposed on the first passivation layer, a barrier layer disposed on a first portion of the buffer layer, a redistribution layer disposed over the barrier layer, an adhesion layer disposed on the barrier layer and on side surfaces of the redistribution layer, and a second passivation layer disposed on a second portion of the buffer layer. The second passivation layer is in contact with the barrier layer, the adhesion layer, and the redistribution layer.Type: GrantFiled: June 19, 2023Date of Patent: September 3, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Tsung-Chieh Hsiao, Hsiang-Ku Shen, Yuan-Yang Hsiao, Ying-Yao Lai, Dian-Hau Chen
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Publication number: 20240282837Abstract: A first conductive pad disposed over a first side of a substrate in a first direction. A second conductive pad is disposed over a second side of the substrate in the first direction. A through-substrate via (TSV) extends into the substrate in the first direction. The TSV is disposed between the first conductive pad and the second conductive pad in the first direction. An air liner disposed between the TSV and the substrate in a second direction different from the first direction.Type: ApplicationFiled: June 15, 2023Publication date: August 22, 2024Inventors: Kuan-Hsun Wang, Tsung-Chieh Hsiao, Chih Hsin Yang, Liang-Wei Wang, Dian-Hau Chen