Patents by Inventor Chih-Wei Chang

Chih-Wei Chang 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).

  • Publication number: 20220277997
    Abstract: A method includes etching a dielectric layer of a substrate to form an opening in the dielectric layer, forming a metal layer extending into the opening, performing an anneal process, so that a bottom portion of the metal layer reacts with a semiconductor region underlying the metal layer to form a source/drain region, performing a plasma treatment process on the substrate using a process gas including hydrogen gas and a nitrogen-containing gas to form a silicon-and-nitrogen-containing layer, and depositing a metallic material on the silicon-and-nitrogen-containing layer.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 1, 2022
    Inventors: Ching-Yi Chen, Sheng-Hsuan Lin, Wei-Yip Loh, Hung-Hsu Chen, Chih-Wei Chang
  • Publication number: 20220262939
    Abstract: A method for forming a high electron mobility transistor is disclosed. A substrate is provided. A channel layer is formed on the substrate. An electron supply layer is formed on the channel layer. A dielectric passivation layer is formed on the electron supply layer. A gate recess is formed into the dielectric passivation layer and the electron supply layer. A surface modification layer is conformally deposited on an interior surface of the gate recess. The surface modification layer is then subjected to an oxidation treatment or a nitridation treatment. A P-type GaN layer is formed in the gate recess and on the surface modification layer.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 18, 2022
    Inventors: Chih-Wei Chang, Yao-Hsien Chung, Shih-Wei Su, Hao-Hsuan Chang, Ting-An Chien, Bin-Siang Tsai
  • Publication number: 20220262676
    Abstract: The present disclosure relates to the field of semiconductor packaging processes, and provides a semiconductor structure and a forming method thereof. The forming method includes: providing a semiconductor substrate, where a surface of the semiconductor substrate is provided with an exposed conductive structure; forming a passivation layer on the surface of the semiconductor substrate and a surface of the exposed conductive structure; etching the passivation layer to form a recess, where a bottom of the recess exposes one end of the conductive structure; forming an adhesion layer on a surface of the recess; and etching to form a hole in the bottom of the recess.
    Type: Application
    Filed: April 12, 2021
    Publication date: August 18, 2022
    Inventor: Chih-Wei CHANG
  • Patent number: 11411094
    Abstract: Embodiments disclosed herein relate generally to forming an effective metal diffusion barrier in sidewalls of epitaxy source/drain regions. In an embodiment, a structure includes an active area having a source/drain region on a substrate, a dielectric layer over the active area and having a sidewall aligned with the sidewall of the source/drain region, and a conductive feature along the sidewall of the dielectric layer to the source/drain region. The source/drain region has a sidewall and a lateral surface extending laterally from the sidewall of the source/drain region, and the source/drain region further includes a nitrided region extending laterally from the sidewall of the source/drain region into the source/drain region. The conductive feature includes a silicide region along the lateral surface of the source/drain region and along at least a portion of the sidewall of the source/drain region.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: August 9, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-Wen Cheng, Cheng-Tung Lin, Chih-Wei Chang, Hong-Mao Lee, Ming-Hsing Tsai, Sheng-Hsuan Lin, Wei-Jung Lin, Yan-Ming Tsai, Yu-Shiuan Wang, Hung-Hsu Chen, Wei-Yip Loh, Ya-Yi Cheng
  • Patent number: 11410880
    Abstract: A method includes forming a first metallic feature, forming a dielectric layer over the first metallic feature, etching the dielectric layer to form an opening, with a top surface of the first metallic feature being exposed through the opening, and performing a first treatment on the top surface of the first metallic feature. The first treatment is performed through the opening, and the first treatment is performed using a first process gas. After the first treatment, a second treatment is performed through the opening, and the second treatment is performed using a second process gas different from the first process gas. A second metallic feature is deposited in the opening.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: August 9, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Hsien Huang, I-Li Chen, Pin-Wen Chen, Yuan-Chen Hsu, Wei-Jung Lin, Chih-Wei Chang, Ming-Hsing Tsai
  • Patent number: 11389644
    Abstract: A flexible thin film metal oxide electrode fabrication methods and devices are provided and illustrated with thin film polyimide electrode formation and IrOx chemical bath deposition. Growth factors of the deposited film such as film thickness, deposition rate and quality of crystallites can be controlled by varying the solution pH, temperature and component concentrations of the bath. The methods allow for selective deposition of IrOx on a flexible substrate (e.g. polyimide electrode) where the IrOx will only coat onto an exposed metal area but not the entire device surface. This feature enables the bath process to coat the IrOx onto every individual electrode in one batch, and to ensure electrical isolation between channels. The ability to perform selective deposition, pads for external connections will not have IrOx coverage that would otherwise interfere with a soldering/bumping process.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: July 19, 2022
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Wentai Liu, Chih-Wei Chang, Pu-Wei Wu, Chung-Yu Wu, Po-Chun Chen, Tsai-Wei Chung
  • Publication number: 20220216204
    Abstract: The present disclosure provides a method that includes providing a semiconductor substrate having a first region and a second region; forming a first gate within the first region and a second gate within the second region on the semiconductor substrate; forming first source/drain features of a first semiconductor material with an n-type dopant in the semiconductor substrate within the first region; forming second source/drain features of a second semiconductor material with a p-type dopant in the semiconductor substrate within the second region. The second semiconductor material is different from the first semiconductor material in composition. The method further includes forming first silicide features to the first source/drain features and second silicide features to the second source/drain features; and performing an ion implantation process of a species to both the first and second regions, thereby introducing the species to first silicide features and the second source/drain features.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 7, 2022
    Inventors: Su-Hao Liu, Yan-Ming Tsai, Chung-Ting Wei, Ziwei Fang, Chih-Wei Chang, Chien-Hao Chen, Huicheng Chang
  • Patent number: 11377652
    Abstract: Systems and methods are provided for transfecting cells, such as mammalian cells and nonmammalian cells, using an electroporation apparatus having an electroporation chamber including an upper micromesh electrode, a lower micromesh electrode and a path defined in the electroporation chamber. The electroporation apparatus includes a first input allowing passage of cells into the electroporation chamber and a first output allowing passage of electroporated cells from the electroporation chamber. The first input and the first output are separated by an offset distance.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: July 5, 2022
    Assignee: NANOCAV, LLC
    Inventor: Chih-Wei Chang
  • Patent number: 11373905
    Abstract: An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: June 28, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Wei Chu, Ying-Chi Su, Yu-Kai Chen, Wei-Yip Loh, Hung-Hsu Chen, Chih-Wei Chang, Ming-Hsing Tsai
  • Publication number: 20220198121
    Abstract: A method includes clustering cells in a group of cells into a selected number of clusters, and ranking the clusters based on a list of prioritized features to generate a list of ranked clusters. The method also includes ranking cells in each of one or more ranked clusters in the list of ranked clusters, based on the list of prioritized features, to generate a list of ranked critical cells. The method further includes outputting the list of ranked critical cells for use in adjusting cell layouts based on the ranked critical cells.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Anurag VERMA, Meng-Kai HSU, Chih-Wei CHANG
  • Publication number: 20220168327
    Abstract: The present invention relates to compounds with high chemical stability and methods for inhibiting the pathological activity of NETs in a subject. In particular, the invention relates to compounds with high chemical stability, uses thereof and methods for inhibiting or ameliorating NET mediated ailments (such as, for example, sepsis, systemic immune response syndrome (SIRS) and ischemia reperfusion injury (IRI)). More particularly, the invention relates to methods and uses of a polyanionic sulfated cellobioside modified with a small uncharged glycosidically linked substituent at its reducing terminus, wherein the presence of the substituent results in a molecule with high chemical stability without affecting the ability of the molecule to be effective in the therapy of NET mediated ailments. For example, the present invention relates to methods and uses of ?-O-methyl cellobioside sulfate (mCBS) or a pharmaceutically acceptable salt thereof (e.g., mCBS.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 2, 2022
    Inventors: Christopher Parish, Connor O'Meara, Lucy Coupland, Benjamin Ju Chye Quah, Farzaneh Kordbacheh, Anna Bezos, Anna Browne, Ross Stephens, Gregory David Tredwell, Lee Andrew Philip, Karen Knox, Laurence Mark von Itzstein, Chih-Wei Chang, Anne Brüstle, David Anak Simon Davis
  • Patent number: 11348839
    Abstract: A semiconductor device with multiple silicide regions is provided. In embodiments a first silicide precursor and a second silicide precursor are deposited on a source/drain region. A first silicide with a first phase is formed, and the second silicide precursor is insoluble within the first phase of the first silicide. The first phase of the first silicide is modified to a second phase of the first silicide, and the second silicide precursor being soluble within the second phase of the first silicide. A second silicide is formed with the second silicide precursor and the second phase of the first silicide.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: May 31, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Yip Loh, Yan-Ming Tsai, Hung-Hsu Chen, Chih-Wei Chang, Sheng-Hsuan Lin
  • Publication number: 20220165866
    Abstract: An HEMT includes a first III-V compound layer. A second III-V compound layer is disposed on the first III-V compound layer. The composition of the first III-V compound layer is different from the composition of the second III-V compound layer. A trench is disposed within the first III-V compound layer and the second III-V compound layer. The trench has a first corner and a second corner. The first corner and the second corner are disposed in the first III-V compound layer. A first dielectric layer contacts a sidewall of the first corner. A second dielectric layer contacts a sidewall of the second corner. The first dielectric layer and the second dielectric layer are outside of the trench. A gate is disposed in the trench. A source electrode and a drain electrode are respectively disposed at two sides of the gate. A gate electrode is disposed directly on the gate.
    Type: Application
    Filed: January 6, 2021
    Publication date: May 26, 2022
    Inventors: Chih-Wei Chang, Yao-Hsien Chung, Shih-Wei Su, Hao-Hsuan Chang, Da-Jun Lin, Ting-An Chien, Bin-Siang Tsai
  • Patent number: 11342236
    Abstract: The present invention provides a wafer, semiconductor device and a method for manufacturing the same, in relation to the field of semiconductor technology. The wafer includes: a substrate; a dielectric layer, disposed on a surface of the substrate; a wafer acceptance test circuit, formed in the dielectric layer; a trench, formed in the dielectric layer and situated on a side of the wafer acceptance test circuit. The wafer acceptance test circuit may comprise a metal interconnection layer. The trench may be filled with a protective layer and has a depth greater than or equal to a depth of the wafer acceptance test circuit. When dicing dies along the scribe line area, the stress caused by dicing can be buffered and cracks may be reduced due to the elasticity of the protective layer. Moreover, the trench and the protective layer filled in the trench can prevent the cracks from extending, thereby improving the yield and stability of the dies.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: May 24, 2022
    Assignee: Changxin Memory Technologies, Inc.
    Inventors: Chih-Wei Chang, Changhao Quan, Dingyou Lin
  • Patent number: 11342225
    Abstract: A method includes etching a dielectric layer of a substrate to form an opening in the dielectric layer, forming a metal layer extending into the opening, performing an anneal process, so that a bottom portion of the metal layer reacts with a semiconductor region underlying the metal layer to form a source/drain region, performing a plasma treatment process on the substrate using a process gas including hydrogen gas and a nitrogen-containing gas to form a silicon-and-nitrogen-containing layer, and depositing a metallic material on the silicon-and-nitrogen-containing layer.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: May 24, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ching-Yi Chen, Sheng-Hsuan Lin, Wei-Yip Loh, Hung-Hsu Chen, Chih-Wei Chang
  • Publication number: 20220159157
    Abstract: A system and method for image-guided microscopic illumination are provided. A processing module controls an imaging assembly such that a camera acquires an image or images of a sample in multiple fields of view, and the image or images are automatically transmitted to a processing module and processed by the first processing module automatically in real-time based on a predefined criterion so as to determine coordinate information of an interested region in each field of view. The processing module also controls an illuminating assembly to illuminate the interested region of the sample according to the received coordinate information regarding to the interested region, with the illumination patterns changing among the fields of view.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Inventors: Jung-Chi LIAO, Yi-De CHEN, Chih-Wei CHANG, Weng Man CHONG
  • Patent number: 11335774
    Abstract: A device includes a fin extending from a semiconductor substrate, a gate stack over and along a sidewall of the fin, an isolation region surrounding the gate stack, an epitaxial source/drain region in the fin and adjacent the gate stack, and a source/drain contact extending through the isolation region, including a first silicide region in the epitaxial source/drain region, the first silicide region including NiSi2, a second silicide region on the first silicide region, the second silicide region including TiSix, and a conductive material on the second silicide region.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: May 17, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yan-Ming Tsai, Chih-Wei Chang, Ming-Hsing Tsai, Sheng-Hsuan Lin, Hung-Hsu Chen, Wei-Yip Loh
  • Publication number: 20220149519
    Abstract: An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Li-Wei CHU, Ying-Chi SU, Yu-Kai CHEN, Wei-Yip LOH, Hung-Hsu CHEN, Chih-Wei CHANG, Ming-Hsing TSAI
  • Publication number: 20220140239
    Abstract: The invention provides a semiconductor structure, the semiconductor structure includes a substrate, a resistance random access memory on the substrate, an upper electrode, a lower electrode and a resistance conversion layer between the upper electrode and the lower electrode, and a cap layer covering the outer side of the resistance random access memory, the cap layer has an upper half and a lower half, and the upper half and the lower half contain different stresses.
    Type: Application
    Filed: December 7, 2020
    Publication date: May 5, 2022
    Inventors: Shih-Wei Su, Da-Jun Lin, Chih-Wei Chang, Bin-Siang Tsai, Ting-An Chien
  • Publication number: 20220130755
    Abstract: The present disclosure provides an interconnect structure and a method for forming an interconnect structure. The method for forming an interconnect structure includes forming a bottom metal line in a first interlayer dielectric layer, forming a second interlayer dielectric layer over the bottom metal line, exposing a top surface of the bottom metal line, increasing a total surface area of the exposed top surface of the bottom metal line, forming a conductive via over the bottom metal line, and forming a top metal line over the conductive via.
    Type: Application
    Filed: January 3, 2022
    Publication date: April 28, 2022
    Inventors: SHUEN-SHIN LIANG, KEN-YU CHANG, HUNG-YI HUANG, CHIEN CHANG, CHI-HUNG CHUANG, KAI-YI CHU, CHUN-I TSAI, CHUN-HSIEN HUANG, CHIH-WEI CHANG, HSU-KAI CHANG, CHIA-HUNG CHU, KENG-CHU LIN, SUNG-LI WANG