Patents by Inventor Chuan-Wei Wang

Chuan-Wei Wang 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: 8836761
    Abstract: The present invention discloses a 3D information generator for use in an interactive interface. The 3D information generator includes: a MEMS light beam generator having at least one light source for providing a dot light beam and a MEMS mirror for projecting a movable scanning light beam according to the dot light beam to an object; an image sensor for sensing an image of the object to generate a 2D image information; and a processor for generating a distance information by triangulation method according to a reflection result of the scanning light beam scanning on the object, wherein the distance information is combined with the 2D image information to generate a 3D information.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 16, 2014
    Assignee: Pixart Imaging Incorporated
    Inventors: Chuan-Wei Wang, Hsin-Chia Chen, Chih-Hung Lu
  • Patent number: 8829628
    Abstract: A MEMS package structure, including a substrate, an interconnecting structure, an upper metallic layer, a deposition element and a packaging element is provided. The interconnecting structure is disposed on the substrate. The MEMS structure is disposed on the substrate and within a first cavity. The upper metallic layer is disposed above the MEMS structure and the interconnecting structure, so as to form a second cavity located between the upper metallic layer and the interconnecting structure and communicates with the first cavity. The upper metallic layer has at least a first opening located above the interconnecting structure and at least a second opening located above the MEMS structure. Area of the first opening is greater than that of the second opening. The deposition element is disposed above the upper metallic layer to seal the second opening. The packaging element is disposed above the upper metallic layer to seal the first opening.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: September 9, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Hsin-Hui Hsu, Sheng-Ta Lee, Chuan-Wei Wang
  • Patent number: 8828771
    Abstract: A sensor manufacturing method and a microphone structure produced by using the same. Wherein, thermal oxidation method is used to form a sacrifice layer of an insulation layer on a silicon-on-insulator (SOI) substrate or a silicon substrate, to fill patterned via in said substrate. Next, form a conduction wiring layer on the insulation layer. Since the conduction wiring layer is provided with holes, thus etching gas can be led in through said hole, to remove filling in the patterned via, to obtain an MEMS sensor. Or after etching of the conduction wiring layer, deep reactive-ion etching is used to etch the silicon substrate into patterned via, to connect the substrate electrically to a circuit chip. The manufacturing process is simple and the technology is stable and mature, thus the conduction wiring layer and the insulation layer are used to realize electrical isolation.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: September 9, 2014
    Inventor: Chuan-Wei Wang
  • Publication number: 20140217522
    Abstract: A microphone structure is disclosed. The microphone structure comprises a substrate penetrated with at least one opening chamber and having an insulation surface. A conduction layer is arranged on the insulation surface and arranged over the opening chamber. An insulation layer is arranged on the conduction layer and having a opening to expose a part of the conduction layer as a vibration block arranged over the opening chamber. At least two first patterned electrodes are arranged on the insulation layer and arranged over the vibration block. At least two second patterned electrodes are arranged over the opening chamber, arranged on the vibration block and separated from the first patterned electrodes by at least two first gaps. When the vibration block vibrates, the vibration block moves the second patterned electrodes whereby the second patterned electrodes and the first patterned electrodes perform differential sensing.
    Type: Application
    Filed: April 4, 2014
    Publication date: August 7, 2014
    Inventor: Chuan-Wei Wang
  • Patent number: 8772885
    Abstract: The present invention discloses a MEMS sensing device which comprises a substrate, a MEMS device region, a film, an adhesive layer, a cover, at least one opening, and a plurality of leads. The substrate has a first surface and a second surface opposite the first surface. The MEMS device region is on the first surface, and includes a chamber. The film is overlaid on the MEMS device region to seal the chamber as a sealed space. The cover is mounted on the MEMS device region and adhered by the adhesive layer. The opening is on the cover or the adhesive layer, allowing the pressure of the air outside the device to pressure the film. The leads are electrically connected to the MEMS device region, and extend to the second surface.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: July 8, 2014
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Chuan-Wei Wang, Ming-Han Tsai
  • Patent number: 8729660
    Abstract: The present invention discloses a MEMS (Micro-Electro-Mechanical System) integrated chip with cross-area interconnection, comprising: a substrate; a MEMS device area on the substrate; a microelectronic device area on the substrate; a guard ring separating the MEMS device area and the microelectronic device area; and a conductive layer on the surface of the substrate below the guard ring, or a well in the substrate below the guard ring, as a cross-area interconnection electrically connecting the MEMS device area and the microelectronic device area.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: May 20, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Hsin-Hui Hsu, Chuan-Wei Wang, Sheng-Ta Lee
  • Patent number: 8704331
    Abstract: The present invention discloses a MEMS (Micro-Electro-Mechanical System) integrated chip with cross-area interconnection, comprising: a substrate; a MEMS device area on the substrate; a microelectronic device area on the substrate; a guard ring separating the MEMS device area and the microelectronic device area; and a conductive layer on the surface of the substrate below the guard ring, or a well in the substrate below the guard ring, as a cross-area interconnection electrically connecting the MEMS device area and the microelectronic device area.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: April 22, 2014
    Assignee: Pixart Imaging Inc., R.O.C.
    Inventors: Hsin-Hui Hsu, Chuan-Wei Wang, Sheng-Ta Lee
  • Patent number: 8692338
    Abstract: A method for fabricating a MEMS resonator is provided. A stacked main body including a silicon substrate, a plurality of metallic layers and an isolation layer is formed and has a first etching channel extending from the metallic layers into the silicon substrate. The isolation layer is filled in the first etching channel. The stacked main body also has a predetermined suspended portion. Subsequently, a portion of the isolation layer is removed so that a second etching channel is formed and the remained portion of the isolation layer covers an inner sidewall of the first etching channel. Afterwards, employing the isolation layer that covers the inner sidewall of the first etching channel as a mask, an isotropic etching process through the second etching channel is applied to the silicon substrate, thereby forming the MEMS resonator suspending above the silicon substrate. A micro electronic device is also provided.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 8, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Chuan-Wei Wang, Sheng-Ta Lee, Hsin-Hui Hsu
  • Patent number: 8679886
    Abstract: A microelectronic device including a substrate, at least a semi-conductor element, an anti metal ion layer, a non-doping oxide layer and a MEMS structure is provided. The substrate has a CMOS circuit region and a MEMS region. The semi-conductor element is configured within the CMOS circuit region of the substrate. The anti metal ion layer is disposed within the CMOS circuit region of the substrate and covers the semi-conductor element. The non-doping oxide layer is disposed on the substrate within the MEMS region. The MEMS structure is partially suspended above the non-doping oxide layer. The present invention also provides a MEMS package structure and a fabricating method thereof.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 25, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Hsin-Hui Hsu, Sheng-Ta Lee, Chuan-Wei Wang
  • Publication number: 20140066039
    Abstract: The present invention discloses a mobile device remote control system. It includes a remote control unit and a mobile device unit; the mobile device unit for example is a mobile phone. The remote control unit includes a sensor and a wireless transmitter; the sensor is for generating a sensing signal and the wireless transmitter is for transmitting a wireless signal corresponding to the sensing signal to the mobile phone, for controlling the mobile phone to execute a corresponding function. If the mobile phone is replaced by a car computer system, then the system becomes a road safety monitoring apparatus.
    Type: Application
    Filed: November 24, 2012
    Publication date: March 6, 2014
    Inventor: Chuan Wei Wang
  • Patent number: 8664099
    Abstract: The present invention discloses a MEMS device with particles blocking function, and a method for making the MEMS device. The MEMS device comprises: a substrate on which is formed a MEMS device region; and a particles blocking layer deposited on the substrate.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: March 4, 2014
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Chuan Wei Wang, Sheng Ta Lee
  • Patent number: 8643128
    Abstract: The present invention discloses an MEMS sensor and a method for making the MEMS sensor. The MEMS sensor according to the present invention includes: a substrate including an opening; a suspended structure located above the opening; and an upper structure, a portion of which is at least partially separated from a portion of the suspended structure; wherein the suspended structure and the upper structure are separated from each other by a step including metal etch.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 4, 2014
    Assignee: Pixart Imaging Incorporation
    Inventor: Chuan Wei Wang
  • Patent number: 8640543
    Abstract: The present invention discloses a micro-electro-mechanical system (MEMS) device, comprising: a mass including a main body and two capacitor plates located at the two sides of the main body and connected with the main body, the two capacitor plates being at different elevation levels; an upper electrode located above one of the two capacitor plates, forming one capacitor therewith; and a lower electrode located below the other of the two capacitor plates, forming another capacitor therewith, wherein the upper and lower electrodes are misaligned with each other in a horizontal direction.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: February 4, 2014
    Assignee: Pixart Imaging Incorporation
    Inventors: Sheng Ta Lee, Chuan Wei Wang
  • Publication number: 20130334623
    Abstract: The present invention discloses a MEMS sensing device which comprises a substrate, a MEMS device region, a film, an adhesive layer, a cover, at least one opening, and a plurality of leads. The substrate has a first surface and a second surface opposite the first surface. The MEMS device region is on the first surface, and includes a chamber. The film is overlaid on the MEMS device region to seal the chamber as a sealed space. The cover is mounted on the MEMS device region and adhered by the adhesive layer. The opening is on the cover or the adhesive layer, allowing the pressure of the air outside the device to pressure the film. The leads are electrically connected to the MEMS device region, and extend to the second surface.
    Type: Application
    Filed: July 22, 2013
    Publication date: December 19, 2013
    Applicant: PIXART IMAGING INCORPORATION
    Inventors: Chuan-Wei Wang, Ming-Han Tsai
  • Publication number: 20130313662
    Abstract: The present invention discloses a MEMS microphone device and its manufacturing method. The MEMS microphone device includes: a substrate including a first cavity; a MEMS device region above the substrate, wherein the MEMS device region includes a metal layer, a via layer, an insulating material region and a second cavity; a mask layer above the MEMS device region; a first lid having at least one opening communicating with the second cavity, the first lid being fixed above the mask layer; and a second lid fixed under the substrate.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Applicant: PIXART IMAGING INCORPORATION
    Inventors: Chuan-Wei Wang, Chih-Ming Sun
  • Patent number: 8529773
    Abstract: The present invention discloses a method for making a MEMS device, comprising: providing a zero-layer substrate; forming a MEMS device region on the substrate, wherein the MEMS device region is provided with a first sacrificial region to separate a suspension structure of the MEMS device from another part of the MEMS device; removing the first sacrificial region by etching; and micromachining the zero-layer substrate.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: September 10, 2013
    Assignee: PixArt Imaging Incorporation R.O.C.
    Inventors: Chuan Wei Wang, Sheng Ta Lee
  • Patent number: 8524519
    Abstract: The present invention discloses a MEMS microphone device and its manufacturing method. The MEMS microphone device includes: a substrate including a first cavity; a MEMS device region above the substrate, wherein the MEMS device region includes a metal layer, a via layer, an insulating material region and a second cavity; a mask layer above the MEMS device region; a first lid having at least one opening communicating with the second cavity, the first lid being fixed above the mask layer; and a second lid fixed under the substrate.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: September 3, 2013
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Chuan-Wei Wang, Chih-Ming Sun
  • Patent number: 8519491
    Abstract: The present invention discloses a MEMS sensing device which comprises a substrate, a MEMS device region, a film, an adhesive layer, a cover, at least one opening, and a plurality of leads. The substrate has a first surface and a second surface opposite the first surface. The MEMS device region is on the first surface, and includes a chamber. The film is overlaid on the MEMS device region to seal the chamber as a sealed space. The cover is mounted on the MEMS device region and adhered by the adhesive layer. The opening is on the cover or the adhesive layer, allowing the pressure of the air outside the device to pressure the film. The leads are electrically connected to the MEMS device region, and extend to the second surface.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: August 27, 2013
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Chuan-Wei Wang, Ming-Han Tsai
  • Patent number: 8513041
    Abstract: The present invention discloses a MEMS (Micro-Electro-Mechanical System) chip and a method for making the MEMS chip. The MEMS chip comprises: a first substrate having a first surface and a second surface opposing each other; a microelectronic device area on the first surface; a first MEMS device area on the second surface; and a conductive interconnection structure electrically connecting the microelectronic device area and the first MEMS device area.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: August 20, 2013
    Assignee: Pixart Imaging Corporation
    Inventors: Chuan-Wei Wang, Sheng-Ta Lee, Hsin-Hui Hsu, Wei-Chung Wang
  • Publication number: 20130186201
    Abstract: The present invention discloses a micro-electro-mechanical system (MEMS) device, comprising: a mass including a main body and two capacitor plates located at the two sides of the main body and connected with the main body, the two capacitor plates being at different elevation levels; an upper electrode located above one of the two capacitor plates, forming one capacitor therewith; and a lower electrode located below the other of the two capacitor plates, forming another capacitor therewith, wherein the upper and lower electrodes are misaligned with each other in a horizontal direction.
    Type: Application
    Filed: April 19, 2012
    Publication date: July 25, 2013
    Inventors: Sheng-Ta Lee, Chuan Wei Wang