Patents by Inventor Che-Wen Liu

Che-Wen Liu 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: 11951587
    Abstract: The present disclosure is directed to techniques of zone-based target control in chemical mechanical polishing of wafers. Multiple zones are identified on a surface of a wafer. The CMP target is achieved on each zone in a sequence of CMP processes. Each CMP process in the sequence achieves the CMP target for only one zone, using a CMP process selective to other zones.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Che-Liang Chung, Che-Hao Tu, Kei-Wei Chen, Chih-Wen Liu
  • Patent number: 11256228
    Abstract: An electronic device has a method capable of automatically executing angle rotation. A second body is rotatably connected to a first body of the electronic device. A hinge mechanism is disposed between the first body and the second body. The hinge mechanism includes a hinge component, a motor unit, a coupling component and an angle detecting unit. The first body and the second body are connected to the hinge component. The motor unit is electrically connected to a controller of the electronic device. The coupling component is connected between the hinge component and the motor unit. The angle detecting unit is connected to the hinge component or the coupling component to read its rotary angle. The controller drives the motor unit to rotate the hinge component via the coupling component, and the second body can be moved relative to the first body and be fixed at a predetermined position.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: February 22, 2022
    Assignee: Wistron Corporation
    Inventors: Chen-Yi Liang, Cheng-Wei Chang, Che-Wen Liu
  • Publication number: 20200285273
    Abstract: A clamshell electronic device is provided. The clamshell electronic device includes a device body, a cover, an auxiliary display unit and an orientation adjustment mechanism. The cover pivots on the device body, and the cover includes a cover notch. The auxiliary display unit is disposed on the device body, wherein the auxiliary display unit is adapted to be rotated between a first unit orientation and a second unit orientation. The orientation adjustment mechanism is connected to the cover and the auxiliary display unit, wherein when the cover is in a first cover orientation relative to the device body, the cover covers the device body, and the auxiliary display unit is in the first unit orientation and corresponds to the cover notch.
    Type: Application
    Filed: July 24, 2019
    Publication date: September 10, 2020
    Inventors: Chen Yi LIANG, Che-Wen LIU, Ming-Ju HSIEH, Tzu Yuan TSENG, Chun Yi LU, Ko-Chen CHANG
  • Patent number: 10165378
    Abstract: A display device having a speaker module includes a display, an ultrasonic speaker and an adjustment module. The speaker module includes at least one first speaker module and at least one second speaker module. The first speaker module is disposed at the display and adapted to emit a first ultrasonic wave. The second speaker module is disposed at the display and adapted to emit a second ultrasonic wave. The first ultrasonic wave and the second ultrasonic wave are intersected to form an audible region. The adjustment module is adapted to control the first speaker module and the second speaker module to rotate relative to the display, so as to drive the audible region to target a user.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: December 25, 2018
    Assignee: WISTRON CORP.
    Inventors: Chen-Yi Liang, Che-Wen Liu, Jia-Hung Lee
  • Patent number: 9930797
    Abstract: A latch mechanism capable of unlocking a first electronic module and a second electronic module separately includes an operating component, a base, a first moving component, a second moving component, a first latch component, and a second latch component. The operating component moves relative to the base along different directions to selectively drive one of the first moving component and the second moving component. When the first moving component is moved to drive the first pivoting component to pivot, the first latch component can be disengaged from the first electronic module, which unlocks the first electronic module. When the second moving component is moved to drive the second pivoting component to pivot, the second latch component can be disengaged from the second electronic module, which unlocks the second electronic module. It allows users to replace the first electronic module or the second electronic module separately.
    Type: Grant
    Filed: June 11, 2017
    Date of Patent: March 27, 2018
    Assignee: Wistron Corporation
    Inventors: Che-Wen Liu, I-Chun Chen, Mei-Shan Wu
  • Publication number: 20180039250
    Abstract: An electronic device has a method capable of automatically executing angle rotation. A second body is rotatably connected to a first body of the electronic device. A hinge mechanism is disposed between the first body and the second body. The hinge mechanism includes a hinge component, a motor unit, a coupling component and an angle detecting unit. The first body and the second body are connected to the hinge component. The motor unit is electrically connected to a controller of the electronic device. The coupling component is connected between the hinge component and the motor unit. The angle detecting unit is connected to the hinge component or the coupling component to read its rotary angle. The controller drives the motor unit to rotate the hinge component via the coupling component, and the second body can be moved relative to the first body and be fixed at a predetermined position.
    Type: Application
    Filed: January 23, 2017
    Publication date: February 8, 2018
    Inventors: Chen-Yi Liang, Cheng-Wei Chang, Che-Wen Liu
  • Patent number: 9824831
    Abstract: A detachable keyswitch mechanism includes a base and a keyswitch. The base includes a bottom plate and a lateral plate bent from the bottom plate. The base further includes an opening structure disposed on the lateral plate, a first rotating portion disposed between the bottom plate and the lateral plate, and a constraining portion disposed on the bottom plate. The keyswitch includes a body rotatably disposed inside the opening structure, a second rotating portion disposed on an upper side of the body and pivotably connected to the first rotating portion, a recovering portion connected to a low side of the body, and an actuating portion disposed on a surface of the body. An end of the recovering portion opposite to the body contacts against the constraining portion. The actuating portion is adapted to actuate a switch disposed on the base when the keyswitch rotates relative to the base.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: November 21, 2017
    Assignee: Wistron Corporation
    Inventors: Yu-Ju Liu, Che-Wen Liu
  • Patent number: 9690333
    Abstract: A portable electronic apparatus assembly includes a tabular electronic device and a supporting device. The supporting device includes a base, a connecting member pivotally connected to the base, and a supporting member pivotally connected to the connecting member. The connecting member can rotate about a first rotation axis relative to the base. The supporting member can rotate about a second rotation axis relative to the connecting member. The first rotation axis and the second rotation axis are nonparallel. The supporting device can support the tabular electronic device by accommodating the tabular electronic device in an accommodating slot of the supporting member. Thereby, unfolding and folding of the supporting member relative to the base is more flexible. The whole thickness of the supporting device after folded can avoid being restrained by the thickness of the tabular electronic device.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 27, 2017
    Assignee: Wistron Corporation
    Inventors: Chen-Yi Liang, Che-Wen Liu
  • Patent number: 9612624
    Abstract: The present disclosure provides a detachable touch notebook computer, which comprises a touch tablet, a connector, and a keyboard dock. The connector has an interlocking structure and a latch, at which the interlocking structure is pivoted. The keyboard dock has a positioning member disposed at the latch. Thereby, the touch tablet can be disposed on the keyboard dock and forming the touch notebook computer. According to the touch notebook computer of the present disclosure, the interlocking structure is driven by rotating the touch tablet. Then the interlocking structure drives the latch to move, enabling the positioning member to come off from the latch and thus detaching the touch tablet from the keyboard dock.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: April 4, 2017
    Assignee: Wistron Corporation
    Inventors: Ching-Pin Yang, Che-Wen Liu
  • Patent number: 9529384
    Abstract: An electronic device includes a main body, a display, a stand, a height-adjusting module and an angle-adjusting module. The display is slidably disposed on the main body. The stand pivots to the main body. The height-adjusting module is disposed on the main body and connected to the display. The angle-adjusting module includes a first sliding element, a linkage, two angle-adjusting transmission units and an angle-adjusting motor. The first sliding element is slidably disposed on the main body. Two opposite ends of the linkage are pivoted to the first sliding element and the stand. The two angle-adjusting transmission units are disposed on the main body and the first sliding element, and engaged with each other. The angle-adjusting motor is connected to the second angle-adjusting transmission unit.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: December 27, 2016
    Assignee: WISTRON CORP.
    Inventors: Chen-Yi Liang, Che-Wen Liu, I-Chun Chen
  • Patent number: 9507384
    Abstract: A folding device provides a top case having magnetic elements at a top magnetic section and a bottom case having a groove and magnetic elements around the groove at a bottom magnetic section. As the top magnetic section of the top case is disposed at the bottom magnetic section of the bottom case, the top case is configurable at one of a folded position and at least two opened positions with respect to the bottom case. When the top case is at the first opened position, a first stopper and a first magnetic element at the groove of the bottom magnetic section maintain the top case at the first opened position; when the top case is at the second opened position, a second stopper and a second magnetic element at the groove of the bottom magnetic section maintain the top case at the second opened position.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: November 29, 2016
    Assignee: Wistron Corporation
    Inventors: Chen-Yi Liang, Che-Wen Liu
  • Patent number: 9429987
    Abstract: A method, for rotating a display image of an electronic device, includes the following steps. Whether an absolute rotation angle of a display of the electronic device relative to a gravity axis is equal to or greater than a predetermined absolute angle threshold is detected. Whether a relative rotation angle of the display relative to a base of the electronic device is between a first and a second relative angle threshold is detected. The display image is maintained when the absolute rotation angle is equal to or greater than the predetermined absolute angle threshold and the relative rotation angle is between the first and second relative angle thresholds. The display image is rotated when the absolute rotation angle of the display is equal to or greater than the predetermined absolute angle threshold but the relative rotation angle is not between the first and second relative angle thresholds.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: August 30, 2016
    Assignee: WISTRON CORP.
    Inventors: Kai-Hsiang Yang, Yuju Liu, Che-Wen Liu
  • Patent number: 9426889
    Abstract: An assembly includes a circuit board and a flexible flat cable. The circuit board includes a board body having top, bottom and side faces, and a connection module. The board body is formed with a positioning slot that is formed through the top and bottom faces and that has a first length, and an opening that extends from the side face and that is in spatial communication with the positioning slot. The opening is formed through the top and bottom faces and has a second length shorter than the first length. The flexible flat cable includes a connection unit and a cable main body that has a width greater than the second length. The cable main body is able to pass through the opening, and extends through and is positioned in the positioning slot.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 23, 2016
    Assignee: Wistron Corporation
    Inventors: Yu-Ju Liu, Che-Wen Liu
  • Publication number: 20160179142
    Abstract: A folding device provides a top case having magnetic elements at a top magnetic section and a bottom case having a groove and magnetic elements around the groove at a bottom magnetic section. As the top magnetic section of the top case is disposed at the bottom magnetic section of the bottom case, the top case is configurable at one of a folded position and at least two opened positions with respect to the bottom case. When the top case is at the first opened position, a first stopper and a first magnetic element at the groove of the bottom magnetic section maintain the top case at the first opened position; when the top case is at the second opened position, a second stopper and a second magnetic element at the groove of the bottom magnetic section maintain the top case at the second opened position.
    Type: Application
    Filed: October 12, 2015
    Publication date: June 23, 2016
    Inventors: Chen-Yi Liang, Che-Wen Liu
  • Publication number: 20160021454
    Abstract: A display device having a speaker module includes a display, an ultrasonic speaker and an adjustment module. The speaker module includes at least one first speaker module and at least one second speaker module. The first speaker module is disposed at the display and adapted to emit a first ultrasonic wave. The second speaker module is disposed at the display and adapted to emit a second ultrasonic wave. The first ultrasonic wave and the second ultrasonic wave are intersected to form an audible region. The adjustment module is adapted to control the first speaker module and the second speaker module to rotate relative to the display, so as to drive the audible region to target a user.
    Type: Application
    Filed: November 18, 2014
    Publication date: January 21, 2016
    Inventors: Chen-Yi LIANG, Che-Wen LIU, Jia-Hung LEE
  • Publication number: 20150338889
    Abstract: A portable electronic apparatus assembly includes a tabular electronic device and a supporting device. The supporting device includes a base, a connecting member pivotally connected to the base, and a supporting member pivotally connected to the connecting member. The connecting member can rotate about a first rotation axis relative to the base. The supporting member can rotate about a second rotation axis relative to the connecting member. The first rotation axis and the second rotation axis are nonparallel. The supporting device can support the tabular electronic device by accommodating the tabular electronic device in an accommodating slot of the supporting member. Thereby, unfolding and folding of the supporting member relative to the base is more flexible. The whole thickness of the supporting device after folded can avoid being restrained by the thickness of the tabular electronic device.
    Type: Application
    Filed: December 15, 2014
    Publication date: November 26, 2015
    Inventors: Chen-Yi Liang, Che-Wen Liu
  • Publication number: 20150294808
    Abstract: A detachable keyswitch mechanism includes a base and a keyswitch. The base includes a bottom plate and a lateral plate bent from the bottom plate. The base further includes an opening structure disposed on the lateral plate, a first rotating portion disposed between the bottom plate and the lateral plate, and a constraining portion disposed on the bottom plate. The keyswitch includes a body rotatably disposed inside the opening structure, a second rotating portion disposed on an upper side of the body and pivotably connected to the first rotating portion, a recovering portion connected to a low side of the body, and an actuating portion disposed on a surface of the body. An end of the recovering portion opposite to the body contacts against the constraining portion. The actuating portion is adapted to actuate a switch disposed on the base when the keyswitch rotates relative to the base.
    Type: Application
    Filed: August 21, 2014
    Publication date: October 15, 2015
    Inventors: Yu-Ju Liu, Che-Wen Liu
  • Patent number: 9146592
    Abstract: A magnet fixing structure includes a bottom wall, stopping units, a top wall and an elastic arm. The stopping units are connected to the bottom wall. The top wall is connected to the stopping units. A containing space is formed between the bottom and top walls. The elastic arm disposed on the bottom wall has a protrusion. A passage connected to the containing space is formed between the elastic arm and one stopping unit. When a magnet resists elastic force of the elastic arm to pass the passage along a first axis and partially move into the containing space, parts of the stopping units stop the magnet moving along a second axis, the bottom wall and the top wall stop the magnet moving along a third axis, and the protrusion stops the magnet moving along the first axis. Besides, an electronic device having the magnet fixing structure is also provided.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: September 29, 2015
    Assignee: Wistron Corporation
    Inventors: Kai-Hsiang Yang, Che-Wen Liu, Yu-Ju Liu
  • Patent number: 9118122
    Abstract: An assembly includes an electrical connector, a cable unit, and adapter terminals. The electrical connector includes an insulator body and conductive terminals disposed at the insulator body. Each conductive terminal includes an insert arm positioned outside the insulator body. The cable unit includes a plug connector and cables connected to the plug connector. Each of the adapter terminals is connected to a core wire of a corresponding cable and is sleeved on the insert arm of a corresponding conductive terminal. Each adapter terminal is electrically connected between the core wire of the corresponding cable and the insert arm of the corresponding conductive terminal.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 25, 2015
    Assignee: Wistron Corporation
    Inventors: Yu-Ju Liu, Che-Wen Liu, Jui-Lin Hsiao
  • Publication number: 20150206284
    Abstract: A method, for rotating a display image of an electronic device, includes the following steps. Whether an absolute rotation angle of a display of the electronic device relative to a gravity axis is equal to or greater than a predetermined absolute angle threshold is detected. Whether a relative rotation angle of the display relative to a base of the electronic device is between a first and a second relative angle threshold is detected. The display image is maintained when the absolute rotation angle is equal to or greater than the predetermined absolute angle threshold and the relative rotation angle is between the first and second relative angle thresholds. The display image is rotated when the absolute rotation angle of the display is equal to or greater than the predetermined absolute angle threshold but the relative rotation angle is not between the first and second relative angle thresholds.
    Type: Application
    Filed: May 21, 2014
    Publication date: July 23, 2015
    Applicant: Wistron Corp.
    Inventors: Kai-Hsiang YANG, Yuju LIU, Che-Wen LIU