Patents by Inventor Li-Hsun Ho

Li-Hsun Ho 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).

  • Patent number: 9988264
    Abstract: A method of fabricating an integrated structure for MEMS device and semiconductor device comprises steps of: providing a substrate having a transistor thereon in a semiconductor device region and a first MEMS component thereon in a MEMS region; performing a interconnect process on the substrate in the semiconductor device region to form a plurality of first dielectric layers, at least a conductive plug and at least a conductive layer in the first dielectric layers; forming a plurality of second dielectric layers and an etch stopping device in the second dielectric layers on the substrate in a etch stopping device region; forming a plurality of third dielectric layers and at least a second MEMS component in the third dielectric layers on the substrate in the MEMS region; and performing an etching process to remove the third dielectric layers in the MEMS region.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: June 5, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Bang-Chiang Lan, Li-Hsun Ho, Wei-Cheng Wu, Hui-Min Wu, Min Chen, Tzung-I Su, Chien-Hsin Huang
  • Patent number: 9783408
    Abstract: A structure of micro-electro-mechanical systems (MEMS) electroacoustic transducer is disclosed. The MEMS electroacoustic transducer includes a substrate having a MEMS device region, a diaphragm having openings and disposed in the MEMS device region, a silicon material layer disposed on the diaphragm and sealing the diaphragm, and a conductive pattern disposed beneath the diaphragm in the MEMS device region. Preferably, a first cavity is also formed between the diaphragm and the substrate.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: October 10, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang
  • Publication number: 20150004732
    Abstract: A method of fabricating an integrated structure for MEMS device and semiconductor device comprises steps of: providing a substrate having a transistor thereon in a semiconductor device region and a first MEMS component thereon in a MEMS region; performing a interconnect process on the substrate in the semiconductor device region to form a plurality of first dielectric layers, at least a conductive plug and at least a conductive layer in the first dielectric layers; forming a plurality of second dielectric layers and an etch stopping device in the second dielectric layers on the substrate in a etch stopping device region; forming a plurality of third dielectric layers and at least a second MEMS component in the third dielectric layers on the substrate in the MEMS region; and performing an etching process to remove the third dielectric layers in the MEMS region.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Inventors: Bang-Chiang Lan, Li-Hsun Ho, Wei-Cheng Wu, Hui-Min Wu, Min Chen, Tzung-I Su, Chien-Hsin Huang
  • Patent number: 8872287
    Abstract: The present invention relates to an integrated structure for a MEMS device and a semiconductor device and a method of fabricating the same, in which an etch stopping element is included on a substrate between the MEMS device and the semiconductor device for protecting the semiconductor device from lateral damage when an oxide releasing process is performed to fabricate the MEMS device. The etch stopping element has various profiles and is selectively formed by an individual fabricating process or is simultaneously formed with the semiconductor device in the same fabricating process. It is a singular structure or a combined stacked multilayered structure, for example, a plurality of rows of pillared etch-resistant material plugs, one or a plurality of wall-shaped etch-resistant material plugs, or a multilayered structure of a stack of which and an etch-resistant material layer.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: October 28, 2014
    Assignee: United Microelectronics Corp.
    Inventors: Bang-Chiang Lan, Li-Hsun Ho, Wei-Cheng Wu, Hui-Min Wu, Min Chen, Tzung-I Su, Chien-Hsin Huang
  • Publication number: 20140291787
    Abstract: A structure of micro-electro-mechanical systems (MEMS) electroacoustic transducer is disclosed. The MEMS electroacoustic transducer includes a substrate having a MEMS device region, a diaphragm having openings and disposed in the MEMS device region, a silicon material layer disposed on the diaphragm and sealing the diaphragm, and a conductive pattern disposed beneath the diaphragm in the MEMS device region. Preferably, a first cavity is also formed between the diaphragm and the substrate.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 2, 2014
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang
  • Patent number: 8798291
    Abstract: A structure of a micro-electro-mechanical systems (MEMS) electroacoustic transducer includes a substrate, a diaphragm, a silicon material layer, and a conductive pattern. The substrate includes an MEMS device region. The diaphragm has openings, and is disposed in the MEMS device region. A first cavity is formed between the diaphragm and the substrate. The silicon material layer is disposed on the diaphragm and seals the diaphragm. The conductive pattern is disposed beneath the diaphragm in the MEMS device region.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: August 5, 2014
    Assignee: United Microelectronics Corp.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang
  • Publication number: 20120205045
    Abstract: A semiconductor machine and a cleaning process are provided. The semiconductor machine includes a chamber and a cleaning module. The cleaning process includes the following steps. Firstly, the semiconductor machine is used to perform a semiconductor manufacturing process, wherein a titanium-based material is etched in the semiconductor manufacturing process. Then, a cleaning task is activated to clean the semiconductor machine by using a cleaning agent including a gas mixture of a fluoride compound and oxygen.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 16, 2012
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Li-Hsun HO, Ching-Shing Huang, Chih-Hui Shen, Tao-Min Chang
  • Patent number: 8096048
    Abstract: A method for fabricating a MEMS is described as follows. A substrate is provided, including a circuit region and a MEMS region separated from each other. A first metal interconnection structure is formed on the substrate in the circuit region, and simultaneously a first dielectric structure is formed on the substrate in the MEMS region. A second metal interconnection structure is formed on the first metal interconnection structure, and simultaneously a second dielectric structure, at least two metal layers and at least one protection ring are formed on the first dielectric structure. The metal layers and the protection ring are formed in the second dielectric structure and the protection ring connects two adjacent metal layers to define an enclosed space between two adjacent metal layers. The first dielectric structure and the second dielectric structure outside the enclosed space are removed to form a MEMS device in the MEMS region.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: January 17, 2012
    Assignee: United Microelectronics Corp.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang, Tzung-I Su
  • Patent number: 7898081
    Abstract: A MEMS device includes a vent hole structure and a MEMS structure disposed on a same side of a substrate. The vent hole structure adjoins the MEMS structure with an etch stop structure therebetween. The MEMS structure includes a chamber, the vent hole structure includes a metal layer having at least a hole thereon as a vent hole to connect the chamber of the MEMS structure through the etch stop structure. Accordingly, the MEMS device has a lateral vent hole. Furthermore, as the vent hole structure and the MEMS structure are disposed on the same side of the substrate, the manufacturing process is convenient and timesaving.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: March 1, 2011
    Assignee: United Microelectronics Corp.
    Inventors: Bang-Chiang Lan, Li-Hsun Ho, Wei-Cheng Wu, Hui-Min Wu, Min Chen, Chien-Hsin Huang, Ming-I Wang
  • Publication number: 20100317138
    Abstract: A method for fabricating a MEMS is described as follows. A substrate is provided, including a circuit region and an MEMS region separated from each other. A first metal interconnection structure is formed on the substrate in the circuit region, and simultaneously a first dielectric structure is formed on the substrate in the MEMS region. A second metal interconnection structure is formed on the first metal interconnection structure, and simultaneously a second dielectric structure, at least two metal layers and at least one protection ring are formed on the first dielectric structure. The metal layers and the protection ring are formed in the second dielectric structure and the protection ring connects two adjacent metal layers to define an enclosed space between two adjacent metal layers. The first dielectric structure and the second dielectric structure outside the enclosed space are removed to form an MEMS device in the MEMS region.
    Type: Application
    Filed: August 3, 2010
    Publication date: December 16, 2010
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang, Tzung-I Su
  • Patent number: 7851975
    Abstract: A microelectromechanical system (MEMS) structure and a fabricating method thereof are described. The MEMS structure includes a fixed part and a movable part. The fixed part is disposed on and connects with a substrate. The movable part including at least two first metal layers, a first protection ring and a first dielectric layer is suspended on the substrate. The first protection ring connects two adjacent first metal layers, so as to define a first enclosed space between the two adjacent first metal layers. The first dielectric layer is disposed in the enclosed space and connects the two adjacent first metal layers.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: December 14, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang, Tzung-I Su
  • Publication number: 20100074458
    Abstract: A structure of a micro-electro-mechanical systems (MEMS) electroacoustic transducer includes a substrate, a diaphragm, a silicon material layer, and a conductive pattern. The substrate includes an MEMS device region. The diaphragm has openings, and is disposed in the MEMS device region. A first cavity is formed between the diaphragm and the substrate. The silicon material layer is disposed on the diaphragm and seals the diaphragm. The conductive pattern is disposed beneath the diaphragm in the MEMS device region.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 25, 2010
    Applicant: United Microelectronics Corp.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang
  • Publication number: 20100052179
    Abstract: A microelectromechanical system (MEMS) structure and a fabricating method thereof are described. The MEMS structure includes a fixed part and a movable part. The fixed part is disposed on and connects with a substrate. The movable part including at least two first metal layers, a first protection ring and a first dielectric layer is suspended on the substrate. The first protection ring connects two adjacent first metal layers, so as to define a first enclosed space between the two adjacent first metal layers. The first dielectric layer is disposed in the enclosed space and connects the two adjacent first metal layers.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 4, 2010
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Bang-Chiang Lan, Ming-I Wang, Li-Hsun Ho, Hui-Min Wu, Min Chen, Chien-Hsin Huang, Tzung-I Su
  • Publication number: 20100002894
    Abstract: A MEMS device includes a vent hole structure and a MEMS structure disposed on a same side of a substrate. The vent hole structure adjoins the MEMS structure with an etch stop structure therebetween. The MEMS structure includes a chamber, the vent hole structure includes a metal layer having at least a hole thereon as a vent hole to connect the chamber of the MEMS structure through the etch stop structure. Accordingly, the MEMS device has a lateral vent hole. Furthermore, as the vent hole structure and the MEMS structure are disposed on the same side of the substrate, the manufacturing process is convenient and timesaving.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 7, 2010
    Inventors: Bang-Chiang Lan, Li-Hsun Ho, Wei-Cheng Wu, Hui-Min Wu, Min Chen, Chien-Hsin Huang, Ming-I Wang
  • Publication number: 20090243004
    Abstract: The present invention relates to an integrated structure for a MEMS device and a semiconductor device and a method of fabricating the same, in which an etch stopping device is included on a substrate between the MEMS device and the semiconductor device for protecting the semiconductor device from lateral damage when an oxide releasing process is performed to fabricate the MEMS device. The etch stopping device has various profiles and is selectively formed by an individual fabricating process or is simultaneously formed with the semiconductor device in the same fabricating process. It is a singular structure or a combined stacked multilayered structure, for example, a plurality of rows of pillared etch-resistant material plugs, one or a plurality of wall-shaped etch-resistant material plugs, or a multilayered structure of a stack of which and an etch-resistant material layer.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 1, 2009
    Inventors: Bang-Chiang Lan, Li-Hsun Ho, Wei-Cheng Wu, Hui-Min Wu, Min Chen, Tzung-I Su, Chien-Hsin Huang