Patents by Inventor Hau-yan Lu

Hau-yan Lu 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: 8604538
    Abstract: A non-volatile semiconductor memory device includes a substrate, a first gate formed on a first region of a surface of the substrate, a second gate formed on a second region of the surface of the substrate, a charge storage layer filled between the first gate and the second gate, a first diffusion region formed on a first side of the charge storage layer, and a second diffusion region formed opposite the charge storage layer from the first diffusion region. The first region and the second region are separated by a distance sufficient for forming a self-aligning charge storage layer therebetween.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: December 10, 2013
    Assignee: eMemory Technology Inc.
    Inventors: Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Patent number: 8456916
    Abstract: An only-one-polysilicon layer non-volatile memory unit cell includes a first P-type transistor, a second P-type transistor, a N-type transistor pair, a first and second coupling capacitors is provided. The N-type transistor pair has a third transistor and a fourth transistor that are connected. The third transistor and the fourth transistor have a first floating polysilicon gate and a second floating polysilicon gate to serve as charge storage mediums, respectively. One end of the second coupling capacitor is connected to the gate of the second transistor and is coupled to the second floating polysilicon gate, the other end of the second coupling capacitor receives a second control voltage. One end of the second coupling capacitor is connected to the gate of the second transistor and is coupled to the second floating polysilicon gate, the other end of the second coupling capacitor receives a second control voltage.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: June 4, 2013
    Assignee: eMemory Technology Inc.
    Inventors: Hsin-Ming Chen, Shih-Chen Wang, Wen-Hao Ching, Yen-Hsin Lai, Hau-Yan Lu, Ching-Sung Yang
  • Patent number: 8390056
    Abstract: A non-volatile semiconductor memory device includes a substrate, a first gate formed on a first region of a surface of the substrate, a second gate formed on a second region of the surface of the substrate, a charge storage layer filled between the first gate and the second gate, a first diffusion region formed on a first side of the charge storage layer, and a second diffusion region formed opposite the charge storage layer from the first diffusion region. The first region and the second region are separated by a distance sufficient for forming a self-aligning charge storage layer therebetween.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: March 5, 2013
    Assignee: eMemory Technology Inc.
    Inventors: Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Patent number: 8363475
    Abstract: A non-volatile memory unit cell includes a first transistor pair and first and second control gates. The first transistor pair includes first and second transistors that are connected in series and of the same type. The first and second transistors have a first floating polysilicon gate and a second floating polysilicon gate, respectively. The first control gate is coupled to the first floating polysilicon gate through a tunneling junction and the second control gate is coupled to the second floating polysilicon gate through another tunneling junction.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: January 29, 2013
    Assignee: eMemory Technology Inc.
    Inventors: Hsin-Ming Chen, Shih-Chen Wang, Wen-Hao Ching, Yen-Hsin Lai, Hau-Yan Lu, Ching-Sung Yang
  • Publication number: 20130010518
    Abstract: An anti-fuse memory with coupling channel is provided. The anti-fuse memory includes a substrate of a first conductive type, a doped region of a second conductive type, a coupling gate, a gate dielectric layer, an anti-fuse gate, and an anti-fuse layer. The substrate has an isolation structure. The doped region is disposed in the substrate. A channel region is defined between the doped region and the isolation structure. The coupling gate is disposed on the substrate between the doped region and the isolation structure. The coupling gate is adjacent to the doped region. The gate dielectric layer is disposed between the coupling gate and the substrate. The anti-fuse gate is disposed on the substrate between the coupling gate and the isolation structure. The anti-fuse gate and the coupling gate have a space therebetween. The anti-fuse layer is disposed between the anti-fuse gate and the substrate.
    Type: Application
    Filed: March 6, 2012
    Publication date: January 10, 2013
    Applicant: eMemory Technology Inc.
    Inventors: Hau-Yan Lu, Hsin-Ming Chen, Ching-Sung Yang
  • Patent number: 8344445
    Abstract: A non-volatile semiconductor memory cell with dual functions includes a substrate, a first gate, a second gate, a third gate, a charge storage layer, a first diffusion region, a second diffusion region, and a third diffusion region. The second gate and the third gate are used for receiving a first voltage corresponding to a one-time programming function of the dual function and a second voltage corresponding to a multi-time programming function of the dual function. The first diffusion region is used for receiving a third voltage corresponding to the one-time programming function and a fourth voltage corresponding to the multi-time programming function. The second diffusion region is used for receiving a fifth voltage corresponding to the multi-time programming function.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: January 1, 2013
    Assignee: eMemory Technology Inc.
    Inventors: Hau-Yan Lu, Hsin-Ming Chen, Ching-Sung Yang
  • Patent number: 8339831
    Abstract: A one-time-programmable memory device comprises a one-time-programmable memory cell array, a voltage pumping circuit, and a programming verification circuit. The one-time-programmable memory cell array comprises a plurality of memory cells. Each memory cell is arranged at an intersection of a bit line and a word line. The voltage pumping circuit comprises a plurality of local voltage boost circuits. Each local voltage boost circuit is shared by a corresponding memory cell of the plurality of memory cells. The programming verification circuit is coupled to the one-time-programmable memory cell array for verifying that conduction current of programmed memory cells of the plurality of memory cells is greater than a predetermined current level after programming. Each local boost circuit isolates leakage current of a corresponding programmed memory cell, and prevents programming voltage failure due to current overloading at a corresponding voltage pumping circuit.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: December 25, 2012
    Assignee: eMemory Technology Inc.
    Inventors: Hau-Yan Lu, Ching-Sung Yang, Shih-Chen Wang, Hsin-Ming Chen
  • Publication number: 20120314474
    Abstract: The present invention provides a non-volatile memory cell structure. A first isolation structure is disposed on a substrate and a semiconductor layer is disposed on the first isolation structure to form a silicon on insulator device. A first doping region is made of a portion of the semiconductor layer. A gate is disposed on the first doping region. A gate oxide layer is sandwiched between the first doping region and the gate. A second doping region is disposed within the semiconductor layer and outside the first doping region. A second doping region is in direct contact with the first doping region. A second isolation structure is disposed on the first isolation structure. Further, the second isolation structure surrounds the first doping region and the second doping region. The second isolation structure is also in direct contact with the first doping region and the second doping region.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 13, 2012
    Inventors: Hsin-Ming Chen, Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Publication number: 20120273860
    Abstract: An only-one-polysilicon layer non-volatile memory unit cell includes a first P-type transistor, a second P-type transistor, a N-type transistor pair, a first and second coupling capacitors is provided. The N-type transistor pair has a third transistor and a fourth transistor that are connected. The third transistor and the fourth transistor have a first floating polysilicon gate and a second floating polysilicon gate to serve as charge storage mediums, respectively. One end of the second coupling capacitor is connected to the gate of the second transistor and is coupled to the second floating polysilicon gate, the other end of the second coupling capacitor receives a second control voltage. One end of the second coupling capacitor is connected to the gate of the second transistor and is coupled to the second floating polysilicon gate, the other end of the second coupling capacitor receives a second control voltage.
    Type: Application
    Filed: July 4, 2012
    Publication date: November 1, 2012
    Applicant: eMemory Technology Inc.
    Inventors: Hsin-Ming Chen, Shih-Chen Wang, Wen-Hao Ching, Yen-Hsin Lai, Hau-Yan Lu, Ching-Sung Yang
  • Publication number: 20120223381
    Abstract: A non-volatile memory structure is disclosed. LDD regions may be optionally formed through an ion implantation using a mask for protection of a gate channel region of an active area. Two gates are apart from each other and disposed on an isolation structure on two sides of a middle region of the active area, respectively. The two gates may be each entirely disposed on the isolation structure or partially to overlap a side portion of the middle region of the active area. A charge-trapping layer and a dielectric layer are formed between the two gates and on the active area to serve for a storage node function. They may be further formed onto all sidewalls of the two gates to serve as spacers. Source/drain regions are formed through ion implantation using a mask for protection of the gates and the charge-trapping layer.
    Type: Application
    Filed: July 26, 2011
    Publication date: September 6, 2012
    Inventors: Hau-Yan Lu, Hsin-Ming Chen, Ching-Sung Yang
  • Publication number: 20120163072
    Abstract: A non-volatile semiconductor memory cell with dual functions includes a substrate, a first gate, a second gate, a third gate, a charge storage layer, a first diffusion region, a second diffusion region, and a third diffusion region. The second gate and the third gate are used for receiving a first voltage corresponding to a one-time programming function of the dual function and a second voltage corresponding to a multi-time programming function of the dual function. The first diffusion region is used for receiving a third voltage corresponding to the one-time programming function and a fourth voltage corresponding to the multi-time programming function. The second diffusion region is used for receiving a fifth voltage corresponding to the multi-time programming function.
    Type: Application
    Filed: March 8, 2012
    Publication date: June 28, 2012
    Inventors: Hau-Yan Lu, Hsin-Ming Chen, Ching-Sung Yang
  • Publication number: 20120134205
    Abstract: An operating method for a memory unit is provided, wherein the memory unit includes a well region, a select gate, a first gate, a second gate, an oxide nitride spacer, a first diffusion region, and a second diffusion region. The operating method for the memory unit comprises the following steps. During a programming operation, a breakdown voltage is coupled to the second diffusion region through a first channel region formed under the select gate. A programming voltage is sequentially or simultaneously applied to the first gate and the second gate to rupture a first oxide layer and a second oxide layer, wherein the first oxide layer is disposed between the first gate and the well region, and the second oxide layer is disposed between the second gate and the well region.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Applicant: EMEMORY TECHNOLOGY INC.
    Inventors: Hau-Yan Lu, Hsin-Ming Chen, Ching-Sung Yang
  • Patent number: 8174063
    Abstract: A non-volatile semiconductor memory device includes a substrate, a first gate formed on a first region of a surface of the substrate, a second gate formed on a second region of the surface of the substrate, a charge storage layer filled between the first gate and the second gate, a first diffusion region formed on a first side of the charge storage layer, and a second diffusion region formed opposite the charge storage layer from the first diffusion region. The first region and the second region are separated by a distance sufficient for forming a self-aligning charge storage layer therebetween.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 8, 2012
    Assignee: eMemory Technology Inc.
    Inventors: Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Publication number: 20120087170
    Abstract: A one-time-programmable memory device comprises a one-time-programmable memory cell array, a voltage pumping circuit, and a programming verification circuit. The one-time-programmable memory cell array comprises a plurality of memory cells. Each memory cell is arranged at an intersection of a bit line and a word line. The voltage pumping circuit comprises a plurality of local voltage boost circuits. Each local voltage boost circuit is shared by a corresponding memory cell of the plurality of memory cells. The programming verification circuit is coupled to the one-time-programmable memory cell array for verifying that conduction current of programmed memory cells of the plurality of memory cells is greater than a predetermined current level after programming. Each local boost circuit isolates leakage current of a corresponding programmed memory cell, and prevents programming voltage failure due to current overloading at a corresponding voltage pumping circuit.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Inventors: Hau-Yan Lu, Ching-Sung Yang, Shih-Chen Wang, Hsin-Ming Chen
  • Publication number: 20120018794
    Abstract: A non-volatile semiconductor memory device includes a substrate, a first gate formed on a first region of a surface of the substrate, a second gate formed on a second region of the surface of the substrate, a charge storage layer filled between the first gate and the second gate, a first diffusion region formed on a first side of the charge storage layer, and a second diffusion region formed opposite the charge storage layer from the first diffusion region. The first region and the second region are separated by a distance sufficient for forming a self-aligning charge storage layer therebetween.
    Type: Application
    Filed: October 5, 2011
    Publication date: January 26, 2012
    Inventors: Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Publication number: 20120007161
    Abstract: A method of forming a charge-storing layer in a non-volatile memory cell in a logic process includes forming a select gate over an active region of a substrate, forming long polysilicon gates partially overlapping the active region of the substrate, and filling the charge-storing layer between the long polysilicon gates.
    Type: Application
    Filed: September 21, 2011
    Publication date: January 12, 2012
    Inventors: Hau-Yan Lu, Hsin-Ming Chen, Ching-Sung Yang
  • Patent number: 8072401
    Abstract: A pixel circuit includes a first transistor coupled to a supply voltage end, a second transistor coupled to a ground end, a storage capacitor, a third transistor coupled to a data end, a fourth transistor, a fifth transistor coupled to the second transistor and the second end of the storage capacitor, and a light-emitting element coupled to the fourth transistor. The first transistor is used for conducting a supply voltage from the supply voltage end in response to a trigger of an enable signal. The second transistor is used for conducting a ground voltage from the ground end when a scan signal voltage is triggered. The storage capacitor includes a first end and a second end coupled to the first transistor and the second transistor, respectively. The third transistor is used for conducting a data signal voltage when the scan signal voltage is triggered. The fourth transistor is used for generating a conducting current based on the data signal voltage when the scan signal voltage is not triggered.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: December 6, 2011
    Assignee: AU Optronics Corp.
    Inventors: Hau-yan Lu, Chi-wen Chen, Ting-chang Chang
  • Publication number: 20110242893
    Abstract: A non-volatile memory unit cell includes a first transistor pair and first and second control gates. The first transistor pair includes first and second transistors that are connected in series and of the same type. The first and second transistors have a first floating polysilicon gate and a second floating polysilicon gate, respectively. The first control gate is coupled to the first floating polysilicon gate through a tunneling junction and the second control gate is coupled to the second floating polysilicon gate through another tunneling junction.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: EMEMORY TECHNOLOGY INC.
    Inventors: Hsin-Ming Chen, Shih-Chen Wang, Wen-Hao Ching, Yen-Hsin Lai, Hau-Yan Lu, Ching-Sung Yang
  • Publication number: 20110024823
    Abstract: A non-volatile semiconductor memory device includes a substrate, a first gate formed on a first region of a surface of the substrate, a second gate formed on a second region of the surface of the substrate, a charge storage layer filled between the first gate and the second gate, a first diffusion region formed on a first side of the charge storage layer, and a second diffusion region formed opposite the charge storage layer from the first diffusion region. The first region and the second region are separated by a distance sufficient for forming a self-aligning charge storage layer therebetween.
    Type: Application
    Filed: December 8, 2009
    Publication date: February 3, 2011
    Inventors: Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Publication number: 20080074360
    Abstract: A pixel circuit includes a first transistor coupled to a supply voltage end, a second transistor coupled to a ground end, a storage capacitor, a third transistor coupled to a data end, a fourth transistor, a fifth transistor coupled to the second transistor and the second end of the storage capacitor, and a light-emitting element coupled to the fourth transistor. The first transistor is used for conducting a supply voltage from the supply voltage end in response to a trigger of an enable signal. The second transistor is used for conducting a ground voltage from the ground end when a scan signal voltage is triggered. The storage capacitor includes a first end and a second end coupled to the first transistor and the second transistor, respectively. The third transistor is used for conducting a data signal voltage when the scan signal voltage is triggered. The fourth transistor is used for generating a conducting current based on the data signal voltage when the scan signal voltage is not triggered.
    Type: Application
    Filed: March 22, 2007
    Publication date: March 27, 2008
    Applicant: AU Optronics Corp.
    Inventors: Hau-yan Lu, Chi-wen Chen, Ting-chang Chang