Patents by Inventor Bomy Chen

Bomy Chen 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: 20150179749
    Abstract: A memory device, and method of making the same, in which a trench is formed into a substrate of semiconductor material. The source region is formed under the trench, and the channel region between the source and drain regions includes a first portion that extends substantially along a sidewall of the trench and a second portion that extends substantially along the surface of the substrate. The floating gate is disposed in the trench, and is insulated from the channel region first portion for controlling its conductivity. The control gate is disposed over and insulated from the channel region second portion, for controlling its conductivity. The erase gate is disposed at least partially over and insulated from the floating gate. Any portion of the trench between the pair of floating gates is free of electrically conductive elements except for a lower portion of the erase gate.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Applicant: Silicon Storage Technology, Inc
    Inventors: Bomy Chen, Chien-Sheng Su, Nhan Do
  • Patent number: 8846538
    Abstract: Systems and methods associated with semiconductor articles are disclosed, including forming a first layer of material on a substrate, etching trenches within regions defining a passive element in the first layer, forming metal regions on sidewalls of the trenches, and forming a region of dielectric or polymer material over or in the substrate. Moreover, an exemplary method may also include forming areas of metal regions on the sidewalls of the trenches such that planar strip portions of the areas form electrically conductive regions of the passive element(s) that are aligned substantially perpendicularly with respect to a primary plane of the substrate. Other exemplary embodiments may comprise various articles or methods including capacitive and/or inductive aspects, Titanium- and/or Tantalum-based resistive aspects, products, products by processes, packages and composites consistent with one or more aspects of the innovations set forth herein.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 30, 2014
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Long Ching Wang, Sychi Fang
  • Publication number: 20140264247
    Abstract: A resistive memory cell may include a ring-shaped bottom electrode, a top electrode, and an electrolyte layer arranged between the bottom and top electrodes. A ring-shaped bottom electrode may be formed by forming a dielectric layer over a bottom electrode contact, etching a via in the dielectric layer to expose at least a portion of the bottom electrode contact, depositing a conductive via liner over the dielectric layer and into the via, the via liner deposited in the via forming a ring-shaped structure in the via and a contact portion in contact with the exposed bottom electrode contact, the ring-shaped structure defining a radially inward cavity of the ring-shaped structure, and filling the cavity with a dielectric fill material, such that the ring-shaped structure of the via liner forms the ring-shaped bottom electrode, depositing an electrolyte layer over the bottom electrode, and depositing a top electrode over the electrolyte layer.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 18, 2014
    Inventors: Sonu Daryanani, Bomy Chen
  • Publication number: 20140264248
    Abstract: A sidewall-type memory cell (e.g., a CBRAM, ReRAM, or PCM cell) may include a bottom electrode, a top electrode layer defining a sidewall, and an electrolyte layer arranged between the bottom and top electrode layers, such that a conductive path is defined between the bottom electrode and a the top electrode sidewall via the electrolyte layer, wherein the bottom electrode layer extends generally horizontally with respect to a horizontal substrate, and the top electrode sidewall extends non-horizontally with respect to the horizontal substrate, such that when a positive bias-voltage is applied to the cell, a conductive path grows in a non-vertical direction (e.g., a generally horizontal direction or other non-vertical direction) between the bottom electrode and the top electrode sidewall.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 18, 2014
    Inventors: Justin Hiroki Sato, Bomy Chen, Sonu Daryanani
  • Publication number: 20140269102
    Abstract: An electrically erasable programmable read only memory (EEPROM) cell may include a substrate including at least one active region, a floating gate adjacent the substrate, a write/erase gate defining a write/erase path for performing high voltage write and erase operations, and a read gate defining a read path for performing low voltage read operations, wherein the read path is distinct from the write/erase path. This allows for a smaller read gate oxide, thus allowing the cell size to be reduced. Further, the EEPROM cell may include two independently controllable read gates, thereby defining two independent transistors which allows better programming voltage isolation. This allows the memory array to be drawn using a common source instead of each column of EEPROM cells needing its own source line. This makes the array more scalable because the cell x-dimension would otherwise be limited by each column needing two metal 1 pitches.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Microchip Technology Incorporated
    Inventors: Kent Hewitt, Jack Wong, Bomy Chen, Sonu Daryanani, Jeffrey A. Shields, Daniel Alvarez, Mel Hymas
  • Patent number: 8258065
    Abstract: Systems and methods associated with semiconductor articles are disclosed, including forming a first layer of material on a substrate, etching trenches within regions defining a passive element in the first layer, forming metal regions on sidewalls of the trenches, and forming a region of dielectric or polymer material over or in the substrate. Moreover, an exemplary method may also include forming areas of metal regions on the sidewalls of the trenches such that planar strip portions of the areas form electrically conductive regions of the passive element(s) that are aligned substantially perpendicularly with respect to a primary plane of the substrate. Other exemplary embodiments may comprise various articles or methods including capacitive and/or inductive aspects, Titanium- and/or Tantalum-based resistive aspects, products, products by processes, packages and composites consistent with one or more aspects of the innovations set forth herein.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: September 4, 2012
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Long Ching Wang, Sychyi Fang
  • Publication number: 20100259979
    Abstract: A flash memory cell is of the type having a substrate of a first conductivity type having a first region of a second conductivity type at a first end, and a second region of the second conductivity type at a second end, spaced apart from the first end, with a channel region between the first end and the second end, a floating gate insulated from a first portion of the channel region and adjacent to the second region, a first control gate adjacent to the floating gate and insulated therefrom, and insulated from a second portion of the channel region, and adjacent to the first region, a second control gate capacitively coupled to the floating gate, and positioned over the floating gate. A method programming the cell to one of a plurality of MLC states comprises applying a current source to the first region. A first voltage is applied to the first control gate sufficient to turn on the second portion of the channel region.
    Type: Application
    Filed: April 10, 2009
    Publication date: October 14, 2010
    Inventors: James Yingbo Jia, Douglas Lee, Bomy Chen
  • Patent number: 7800159
    Abstract: A plurality of non-volatile memory cell units are arranged in rows and columns in a single crystalline semiconductor substrate of a first conductivity type. Each cell unit has a first region of a second conductivity type in the substrate along the planar surface, and a second region of the second conductivity, spaced apart from the first region, with a channel region therebetween. The channel region has a first portion adjacent to the first region, a third portion adjacent to the second region and a second portion therebetween. A first and second floating gates are over the first portion and third portion respectively and are insulated therefrom. A first and second control gates are over the first and second floating gates respectively and are capacitively coupled thereto. A first and second erase gates are over the first and second regions respectively and are insulated therefrom. A word line is over the second portion and is insulated therefrom.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: September 21, 2010
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Yuniarto Widjaja, Henry A. O'M'Mani, Prateep Tuntasood, Bomy Chen
  • Patent number: 7790518
    Abstract: A method of trimming down the volume of a semiconductor resistor element using electrical resistance feedback. After forming conductive material disposed between a pair of electrodes, a voltage is applied to the electrodes to produce an electrical current through the conductive material sufficient to heat and melt away a portion of the conductive material. By reducing the volume of the conductive material, its resistance is increased. The application of the voltage is ceased once the desired dimensions (and thus resistivity) of the conductive material is reached. The resulting semiconductor resistor element could have a fixed resistance, or could have a variable resistance (by using phase change memory material).
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: September 7, 2010
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Ya-Fen Lin, Zhitang Song, Songlin Feng
  • Patent number: 7763492
    Abstract: A phase change memory device, and method of making the same, that includes a trench formed in insulation material having opposing sidewalls that are inwardly sloping with trench depth. A first electrode is formed in the trench. Phase change memory material is formed in electrical contact with the first electrode. A second electrode is formed in electrical contact with the phase change memory material. Voids are formed in the insulation material to impede heat from the phase change memory material from conducting away therefrom. The voids are formed in pairs, with either a portion of the phase change memory material or the second electrode disposed between the voids.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: July 27, 2010
    Assignee: Silicon Storage Technology, Inc.
    Inventor: Bomy Chen
  • Publication number: 20100173468
    Abstract: Systems and methods associated with semiconductor articles are disclosed, including forming a first layer of material on a substrate, etching trenches within regions defining a passive element in the first layer, forming metal regions on sidewalls of the trenches, and forming a region of dielectric or polymer material over or in the substrate. Moreover, an exemplary method may also include forming areas of metal regions on the sidewalls of the trenches such that planar strip portions of the areas form electrically conductive regions of the passive element(s) that are aligned substantially perpendicularly with respect to a primary plane of the substrate. Other exemplary embodiments may comprise various articles or methods including capacitive and/or inductive aspects, Titanium- and/or Tantalum-based resistive aspects, products, products by processes, packages and composites consistent with one or more aspects of the innovations set forth herein.
    Type: Application
    Filed: October 19, 2009
    Publication date: July 8, 2010
    Inventors: Bomy CHEN, Long Ching WANG, Synchyi FANG
  • Patent number: 7701248
    Abstract: The present invention is a storage element for controlling a logic circuit and a logic device having a plurality of storage elements. The storage element has a first and a second non-volatile memory cells connected in series at an output node. Each of the first and second non-volatile memory cells is for storing a state opposite to the other. A demultiplexer has an input, a switched input and two outputs. The output node is connected to the input of the demultiplexer. One of the outputs is used to control the logic circuit. The other output is connected to a bit line which is connected to a sense amplifier. Finally, the switched input receives a switch signal and outputs the signal from the output node to either the one output or the other output.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: April 20, 2010
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Kai Man Yue, Bomy Chen, Geeng Chuan Michael Chern, Tsung-Lu Syu
  • Publication number: 20090309182
    Abstract: A first embodiment of an Electrostatic Discharge (ESD) structure for an integrated circuit for protecting the integrated circuit from an ESD signal, has a substrate of a first conductivity type. The substrate has a top surface. A first region of a second conductivity type is near the top surface and receives the ESD signal. A second region of the second conductivity type is in the substrate, separated and spaced apart from the first region in a substantially vertical direction. A third region of the first conductivity type, heavier in concentration than the substrate, is immediately adjacent to and in contact with the second region, substantially beneath the second region. In a second embodiment, a well of a second conductivity type is provided in the substrate of the first conductivity type. The well has a top surface. A first region of the second conductivity type is near the top surface. A second region of the second conductivity type is in the well, substantially along the bottom of the well.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Inventors: Kung-Yen Su, Yaw Wen Hu, Bomy Chen, Kevin Gene-Wah Jew
  • Patent number: 7605092
    Abstract: Systems and methods associated with semiconductor articles are disclosed, including forming a first layer of material on a substrate, etching trenches within regions defining a passive element in the first layer, forming metal regions on sidewalls of the trenches, and forming a region of dielectric or polymer material over or in the substrate. Moreover, an exemplary method may also include forming areas of metal regions on the sidewalls of the trenches such that planar strip portions of the areas form electrically conductive regions of the passive element(s) that are aligned substantially perpendicularly with respect to a primary plane of the substrate. Other exemplary embodiments may comprise various articles or methods including capacitive and/or inductive aspects, Titanium- and/or Tantalum-based resistive aspects, products, products by processes, packages and composites consistent with one or more aspects of the innovations set forth herein.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: October 20, 2009
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Long Ching Wang, Sychyi Fang
  • Publication number: 20090256590
    Abstract: The present invention is a storage element for controlling a logic circuit and a logic device having a plurality of storage elements. The storage element has a first and a second non-volatile memory cells connected in series at an output node Each of the first and second non-volatile memory cells is for storing a state opposite to the other. A multiplexer has an input, a switched input and two outputs. The output node is connected to the input of the multiplexer. One of the outputs is used to control the logic circuit. The other output is connected to a bit line which is connected to a sense amplifier. Finally, the switched input receives a switch signal and outputs the signal from the output node to either the one output or the other output.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 15, 2009
    Inventors: Kai Man Yue, Bomy Chen, Geeng Chuan Michael Chern, Tsung-Lu Syu
  • Patent number: 7598561
    Abstract: Semiconductor memory array and process of fabrication in which a plurality of bit line diffusions are formed in a substrate, and memory cells formed in pairs between the bit line diffusions, with each of the pairs of cells having first and second conductors adjacent to the bit line diffusions, floating gates beside the first and second conductors, an erase gate between the floating gates, and a source line diffusion in the substrate beneath the erase gate, and at least one additional conductor capacitively coupled to the floating gates. In some disclosed embodiments, the conductors adjacent to the bit line diffusions are word lines, and the additional conductors consist of either a pair of coupling gates which are coupled to respective ones of the floating gates or a single coupling gate which is coupled to both of the floating gates.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: October 6, 2009
    Assignee: Silicon Storage Technolgy, Inc.
    Inventors: Bomy Chen, Prateep Tuntasood, Der-Tsyr Fan
  • Patent number: 7547603
    Abstract: A memory cell has a trench formed into a surface of a semiconductor substrate, and spaced apart source and drain regions with a channel region formed therebetween. The source region is formed underneath the trench, and the channel region includes a first portion extending vertically along a sidewall of the trench and a second portion extending horizontally along the substrate surface. An electrically conductive floating gate is disposed in the trench adjacent to and insulated from the channel region first portion. An electrically conductive control gate is disposed over and insulated from the channel region second portion. An erase gate is disposed in the trench adjacent to and insulated from the floating gate. A block of conductive material has at least a lower portion thereof disposed in the trench adjacent to and insulated from the erase gate, and electrically connected to the source region.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: June 16, 2009
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Sohrab Kianian, Yaw Wen Hu
  • Publication number: 20090108328
    Abstract: An array of nonvolatile memory cells comprises a substantially single crystalline semiconductor substrate of a first conductivity type, having a planar surface. A plurality of non-volatile memory cell units are arranged in a plurality of rows and columns in the substrate. Each cell unit comprises a first region of a second conductivity type in the substrate along the planar surface. A second region of the second conductivity type is in the substrate along the planar surface, spaced apart from the first region. A channel region is between the first region and the second region. The channel region is characterized by three portions: a first portion, a second portion and a third portion, with the second portion between the first portion and the third portion, and the first portion adjacent to the first region, and the third portion adjacent to the second region. A first floating gate is over the first portion of the channel region, and is insulated therefrom.
    Type: Application
    Filed: October 24, 2007
    Publication date: April 30, 2009
    Inventors: YUNIARTO WIDJAJA, HENRY A. O'M'MANI, PRATEEP TUNTASOOD, BOMY CHEN
  • Publication number: 20090004807
    Abstract: Systems and methods associated with semiconductor articles are disclosed, including forming a first layer of material on a substrate, etching trenches within regions defining a passive element in the first layer, forming metal regions on sidewalls of the trenches, and forming a region of dielectric or polymer material over or in the substrate. Moreover, an exemplary method may also include forming areas of metal regions on the sidewalls of the trenches such that planar strip portions of the areas form electrically conductive regions of the passive element(s) that are aligned substantially perpendicularly with respect to a primary plane of the substrate. Other exemplary embodiments may comprise various articles or methods including capacitive and/or inductive aspects, Titanium- and/or Tantalum-based resistive aspects, products, products by processes, packages and composites consistent with one or more aspects of the innovations set forth herein.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Long Chin Wang, Sychyi Fang
  • Patent number: 7470949
    Abstract: A nonvolatile memory cell has a charge trapping layer for the storage of charges thereon. The cell is a bidirectional cell in a substrate of a first conductivity. The cell has two spaced apart trenches. Within each trench, at the bottom thereof is a region of a second conductivity. A channel extends from one of the region at the bottom of one of the trenches along the side wall of that trench to the top planar surface of the substrate, and along the sidewall of the adjacent trench to the region at the bottom of the adjacent trench. The trapping layer is along the sidewall of each of the two trenches. A control gate is in each of the trenches capacitively coupled to the trapping layer along the sidewall and to the region at the bottom of the trench. Each of the trenches can stored a plurality of bits.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 30, 2008
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Bomy Chen, Yuniarto Widjaja, Jack Edward Frayer, Felix (Ying-Kit) Tsui