Patents by Inventor Chung-Fu Chang

Chung-Fu 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: 20190183725
    Abstract: A vibrational rehabilitation device includes two drive assemblies, an eccentric assembly, and two half housings. Each drive assembly includes a driving wheel assembly and a driven wheel assembly. The driving wheel assembly has a driving wheel and a driving shaft. The driving shaft is mounted to a center of the driving wheel. A grip member is provided at one side of the driving shaft opposite the driving wheel. The driven wheel assembly includes a first driven wheel and a second driven wheel. The first driven wheel is connected with the driving wheel and driven by the driving wheel. The second driven wheel is coaxially disposed with the first driven wheel. The eccentric assembly includes two transmission wheels at two sides thereof and an eccentric block sandwiched between the two transmission wheels. The drive assemblies and the eccentric assembly are mounted in the housings.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 20, 2019
    Inventor: Chung-Fu Chang
  • Publication number: 20190160328
    Abstract: A collapsible exercise stepper contains: a base, a movable extension rack, a grip assembly, two stepping units, two hydraulic cylinders, and a folding unit. The base includes a first fixing rod and a first connection rod, and the first fixing rod has a first coupling portion. The movable extension rack includes a second fixing rod and a second connection rod with a second coupling portion and two extending tabs, wherein the second connection rod has a horizontal bar and a third coupling portion. The grip assembly rotatably includes a handle, a fitting tube, an accommodation portion, and an actuation seat. Each stepping unit includes a support plate and a pedal, wherein the support plate has a rotation portion and a driving portion. Each hydraulic cylinder includes a first joining portion and a second joining portion. The folding unit includes a first operation element and a second operation element.
    Type: Application
    Filed: April 25, 2018
    Publication date: May 30, 2019
    Inventor: Chung-Fu Chang
  • Publication number: 20190151701
    Abstract: An interacting exercise device is revealed. The interacting exercise device includes a driving device and a non-concentric actuator driven by the driving device. While the driving device is operated to rotate, the non-concentric actuator vibrates and the vibration generated is delivered to the interacting exercise device for interacting shaking fitness.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 23, 2019
    Inventor: Chung-Fu Chang
  • Publication number: 20190157455
    Abstract: A method for fabricating a semiconductor device. A gate is formed on a substrate. A spacer is formed on each sidewall of the gate. A hard mask layer is formed on the spacer. A recessed region is formed in the substrate and adjacent to the hard mask layer. An epitaxial layer is formed in the recessed region. The substrate is subjected to an ion implantation process to bombard particle defects on the hard mask layer with inert gas ions. An annealing process is performed to repair damages to the epitaxial layer caused by the ion implantation process. The hard mask layer is then removed.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 23, 2019
    Inventors: Kuang-Hsiu Chen, Hsu Ting, Chung-Fu Chang, Shi-You Liu, Chun-Wei Yu, Yu-Ren Wang
  • Publication number: 20190143168
    Abstract: A multi-functional exercise device includes an upper part and a lower part. The upper part has a base. The base includes two side walls extending from two sides thereof, a grip member mounted between the two side walls, and an elastic engaging hook beneath the base. The lower part includes a support disc having a central engaging hole for the elastic engaging hook to be engaged therein, at least one mounting portion at a lower end of the support disc, and at least one rolling element mounted to the mounting portion. The elastic engaging hook of the upper part is engaged with the engaging hole of the lower part so that the upper part and the lower part are connected together. The upper part is applied with a force to drive the lower part to move along the direction of the applied force for the user to do exercises.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventor: Chung-Fu Chang
  • Patent number: 10166424
    Abstract: An exercise machine having a changeable damping mechanism is provided. A first transmission rope on a first shifting wheel of a first rotating shaft drives a damping device of a damping shaft to generate a relative damping action for training the leg muscular endurance of the user. Through a first changeable damping mechanism, the first transmission rope, which having stretch elasticity on the first shifting wheel is controlled to adjust the rotational speed according to the gear ratio, which may be in cooperation with a second transmission rope, which having stretch elasticity on a second shifting wheel through a second changeable damping mechanism, and is in cooperation with the damping action of a magnetic control wheel or a blower fan of the damping device to extend the range of damping control for different users to train muscular endurance.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 1, 2019
    Inventor: Chung-Fu Chang
  • Publication number: 20180331223
    Abstract: A method of forming a semiconductor device is provided. At least one stacked structure is provided on a substrate. A first spacer material layer, a second spacer material layer, and a third spacer material layer are sequentially formed on the substrate and cover the stacked structure. The first, second, and third spacer material layers are etched to form a tri-layer spacer structure on the sidewall of the stacked structure. The tri-layer spacer structure includes, from one side of the stacked structure, a first spacer, a second spacer, and a third spacer, and a dielectric constant of the second spacer is less than each of a dielectric constant of the first spacer and a dielectric constant of the third spacer.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 15, 2018
    Applicant: United Microelectronics Corp.
    Inventors: Man-Ling Lu, Yu-Hsiang Hung, Chung-Fu Chang, Yen-Liang Wu, Wen-Jiun Shen, Chia-Jong Liu, Ssu-I Fu, Yi-Wei Chen
  • Publication number: 20180297254
    Abstract: A method for manufacturing a massage wear-resistant treadmill deck and a finished product thereof are provided. The method includes step 1: providing a mold, the mold having a plurality of cavities thereon, a wear-resistant material being injected into the cavities of the mold; step 2: placing a deck in the mold so that the wear-resistant material is bonded to a surface of the deck to form a plurality of massage protrusions on the deck; and step 3: demoulding the deck from the mold, the surface of the deck being formed with the massage protrusions to form the massage wear-resistant treadmill deck. A wear-resistant layer having the massage protrusions is first formed in the mold, and then the deck is placed into the mold to bond with the wear-resistant layer to form the massage wear-resistant treadmill deck. The manufacturing cost is reduced and the manufacturing mobility is improved.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 18, 2018
    Inventor: Chung-Fu Chang
  • Publication number: 20180236300
    Abstract: A stepping exercise machine includes a support unit, a transmission unit and a tread unit. The support unit includes a support beam and a plurality of support legs connected to the support beam. The transmission unit includes a lever. The lever is pivotally connected to a connecting member provided on the support beam. Two sides of the lever are an effort arm and a resisting arm with the connecting member as a fulcrum. The two sides of the lever are connected to two ends of the support beam through tension springs, respectively. The tread unit includes a pair of pedals. The pedals are connected to two ends of the lever. The transmission unit further includes a pair of swing rods. First ends of the swing rods are pivotally connected to the connecting member. Second ends of the swing rods are pivotally connected to lower ends of the pedals, respectively.
    Type: Application
    Filed: July 28, 2017
    Publication date: August 23, 2018
    Inventor: CHUNG-FU CHANG
  • Patent number: 10050146
    Abstract: A method of forming a semiconductor device is provided. At least one stacked structure is provided on a substrate. A first spacer material layer, a second spacer material layer, and a third spacer material layer are sequentially formed on the substrate and cover the stacked structure. The first, second, and third spacer material layers are etched to form a tri-layer spacer structure on the sidewall of the stacked structure. The tri-layer spacer structure includes, from one side of the stacked structure, a first spacer, a second spacer, and a third spacer, and a dielectric constant of the second spacer is less than each of a dielectric constant of the first spacer and a dielectric constant of the third spacer.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: August 14, 2018
    Assignee: United Microelectronics Corp.
    Inventors: Man-Ling Lu, Yu-Hsiang Hung, Chung-Fu Chang, Yen-Liang Wu, Wen-Jiun Shen, Chia-Jong Liu, Ssu-I Fu, Yi-Wei Chen
  • Patent number: 10039952
    Abstract: A treadmill having a curved treadmill deck is provided. Two curved side frames are disposed at two sides of the treadmill frame. Front and rear end ends of each curved side frame are higher than a middle section thereof. Inner sides of the two curved side frames are provided with a plurality of fixing seats, respectively. The fixing seats have fixing holes, respectively. An elastic deck is composed of a plurality of sheets connected side by side. The sheets each have perforations corresponding in position to the fixing holes of the respective fixing seats. A plurality of fixing pins are inserted in the perforations of the sheets of the elastic deck and secured to the fixing holes of the fixing seats. The elastic deck is forcibly fastened by the fixing pins and slightly deformed according to the curvature of the curved side frames to form the curved treadmill deck.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 7, 2018
    Inventor: Chung-Fu Chang
  • Patent number: 10039951
    Abstract: A horse riding exercise machine is not only compact in structure but also easy to be assembled and disassembled. When in use, a second N-shaped connecting rod and/or a return member are provided to achieve a labor-saving effect for exercise. Through a compact structure and the detachable connection of a bolt, when the horse riding exercise machine is not used, the bolt can be loosened so that a rear support base can be pushed toward a front support base to close up, thereby reducing the storage space to facilitate the storage.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 7, 2018
    Inventor: Chung-Fu Chang
  • Patent number: 9978854
    Abstract: An etching method adapted to forming grooves in Si-substrate and FinFET transistor manufactured thereof are provided. The etching method includes providing a silicon substrate, at least two gate structures formed on the silicon substrate and at least two gate spacer structures disposed on the silicon substrate; performing a first etching process on the silicon substrate to form a first groove, which has a base and two inclined sidewalls, ascending to respective bottoms of the gate structures, and are interconnected with the base, respectively; and performing a second etching process on the silicon substrate at the base of the first groove, so as to form a second groove in a trench shape, wherein the two inclined sidewalls of the first groove are interconnected with the second groove respectively, and the first etching process is substantially different from the second etching process.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 22, 2018
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Jhen-Cyuan Li, Shui-Yen Lu, Man-Ling Lu, Yu-Cheng Tung, Chung-Fu Chang
  • Publication number: 20180133543
    Abstract: A stepping exercise machine includes a base and a pedal. The base is provided with an undulating slide rail. A top end of the slide rail is defined as a peak. Bottom ends of two sides of the peak are defined as troughs. The two sides of the peak or the bottom ends of the troughs are provided with stop blocks, respectively. An underside of the pedal is pivotally connected with rollers. Two sides of the underside of the pedal are fixedly connected with a pair of stretchable elastic members. The other ends of the pair of stretchable elastic members are fixed to two sides of the base. The rollers support and drive the pedal to reciprocate along the undulating slide rail ups and downs by means of the stretchable elastic members.
    Type: Application
    Filed: July 7, 2017
    Publication date: May 17, 2018
    Inventor: Chung-Fu CHANG
  • Patent number: 9899523
    Abstract: The present invention provides a semiconductor structure, comprising a substrate, a gate structure, a source/drain region and at least a dislocation. The gate structure is disposed on the substrate. The source/drain region is disposed in the substrate at two sides of the gate structure. The dislocation is located in the source/drain region, and is asymmetrical relating to a middle axis of the source/drain region.
    Type: Grant
    Filed: January 11, 2015
    Date of Patent: February 20, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jiun Shen, Chia-Jong Liu, Chung-Fu Chang, Yen-Liang Wu, Man-Ling Lu, Yi-Wei Chen, Jhen-Cyuan Li
  • Publication number: 20170358455
    Abstract: A fin-shaped structure includes a substrate having a first fin-shaped structure located in a first area and a second fin-shaped structure located in a second area, wherein the second fin-shaped structure includes a ladder-shaped cross-sectional profile part. The present invention also provides two methods of forming this fin-shaped structure. In one case, a substrate having a first fin-shaped structure and a second fin-shaped structure is provided. A treatment process is performed to modify an external surface of the top of the second fin-shaped structure, thereby forming a modified part. A removing process is performed to remove the modified part through a high removing selectivity to the first fin-shaped structure and the second fin-shaped structure, and the modified part, thereby the second fin-shaped structure having a ladder-shaped cross-sectional profile part is formed.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 14, 2017
    Inventors: Wen-Jiun Shen, Ssu-I Fu, Yen-Liang Wu, Chia-Jong Liu, Yu-Hsiang Hung, Chung-Fu Chang, Man-Ling Lu, Yi-Wei Chen
  • Publication number: 20170340917
    Abstract: A treadmill having a curved treadmill deck is provided. Two curved side frames are disposed at two sides of the treadmill frame. Front and rear end ends of each curved side frame are higher than a middle section thereof. Inner sides of the two curved side frames are provided with a plurality of fixing seats, respectively. The fixing seats have fixing holes, respectively. An elastic deck is composed of a plurality of sheets connected side by side. The sheets each have perforations corresponding in position to the fixing holes of the respective fixing seats. A plurality of fixing pins are inserted in the perforations of the sheets of the elastic deck and secured to the fixing holes of the fixing seats. The elastic deck is forcibly fastened by the fixing pins and slightly deformed according to the curvature of the curved side frames to form the curved treadmill deck.
    Type: Application
    Filed: April 18, 2017
    Publication date: November 30, 2017
    Inventor: Chung-Fu Chang
  • Publication number: 20170291062
    Abstract: A horse riding exercise machine is not only compact in structure but also easy to be assembled and disassembled. When in use, a second N-shaped connecting rod and/or a return member are provided to achieve a labor-saving effect for exercise. Through a compact structure and the detachable connection of a bolt, when the horse riding exercise machine is not used, the bolt can be loosened so that a rear support base can be pushed toward a front support base to close up, thereby reducing the storage space to facilitate the storage.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 12, 2017
    Inventor: Chung-Fu Chang
  • Patent number: 9786510
    Abstract: A fin-shaped structure includes a substrate having a first fin-shaped structure located in a first area and a second fin-shaped structure located in a second area, wherein the second fin-shaped structure includes a ladder-shaped cross-sectional profile part. The present invention also provides two methods of forming this fin-shaped structure. In one case, a substrate having a first fin-shaped structure and a second fin-shaped structure is provided. A treatment process is performed to modify an external surface of the top of the second fin-shaped structure, thereby forming a modified part. A removing process is performed to remove the modified part through a high removing selectivity to the first fin-shaped structure and the second fin-shaped structure, and the modified part, thereby the second fin-shaped structure having a ladder-shaped cross-sectional profile part is formed.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: October 10, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jiun Shen, Ssu-I Fu, Yen-Liang Wu, Chia-Jong Liu, Yu-Hsiang Hung, Chung-Fu Chang, Man-Ling Lu, Yi-Wei Chen
  • Publication number: 20170274237
    Abstract: An exercise machine having a changeable damping mechanism is provided. A first transmission rope on a first shifting wheel of a first rotating shaft drives a damping device of a damping shaft to generate a relative damping action for training the leg muscular endurance of the user. Through a first changeable damping mechanism, the first transmission rope, which having stretch elasticity on the first shifting wheel is controlled to adjust the rotational speed according to the gear ratio, which may be in cooperation with a second transmission rope, which having stretch elasticity on a second shifting wheel through a second changeable damping mechanism, and is in cooperation with the damping action of a magnetic control wheel or a blower fan of the damping device to extend the range of damping control for different users to train muscular endurance.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 28, 2017
    Inventor: Chung-Fu Chang