Patents by Inventor Luan C. Tran

Luan C. Tran 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: 20130043560
    Abstract: Embodiments of MIM capacitors may be embedded into a thick IMD layer with enough thickness (e.g., 10 K?˜30 K?) to get high capacitance, which may be on top of a thinner IMD layer. MIM capacitors may be formed among three adjacent metal layers which have two thick IMD layers separating the three adjacent metal layers. Materials such as TaN or TiN are used as bottom/top electrodes & Cu barrier. The metal layer above the thick IMD layer may act as the top electrode connection. The metal layer under the thick IMD layer may act as the bottom electrode connection. The capacitor may be of different shapes such as cylindrical shape, or a concave shape. Many kinds of materials (Si3N4, ZrO2, HfO2, BST . . . etc) can be used as the dielectric material. The MIM capacitors are formed by one or two extra masks while forming other non-capacitor logic of the circuit.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Chyuan Tzeng, Luan C. Tran, Chen-Jong Wang, Kuo-Chi Tu, Hsiang-Fan Lee
  • Patent number: 8243527
    Abstract: A non-volatile memory device includes a first metal-oxide-semiconductor (CMOS) device coupled to a bit line and a word line and a second CMOS device coupled to the first CMOS device. The second CMOS device is also coupled to a complementary bit line and a complementary word line. The first and second CMOS devices are complementary to one another. An output node is coupled between the first CMOS device and the second CMOS device. A method of programming a non-volatile field programmable gate array (NV-FPGA) includes coupling an information handling system to the FPGA, performing a block erase of a plurality of memory cells in the FPGA, verifying that the block erase is successful, programming an upper page of the FPGA, verifying that the upper page programming is successful, programming a lower page of the FPGA and verifying that the lower page programming is successful.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: August 14, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Wei Hung, Chia-Ta Hsieh, Luan C. Tran
  • Publication number: 20120193777
    Abstract: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.
    Type: Application
    Filed: April 12, 2012
    Publication date: August 2, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Luan C. Tran, John Lee, Zengtao "Tony" Liu, Eric Freeman, Russell Nielsen
  • Patent number: 8158476
    Abstract: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: April 17, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Luan C. Tran, John Lee, Zengtao “Tony” Liu, Eric Freeman, Russell Nielsen
  • Publication number: 20120061807
    Abstract: Crisscrossing spacers formed by pitch multiplication are used to form isolated features, such as contacts vias. A first plurality of mandrels are formed on a first level and a first plurality of spacers are formed around each of the mandrels. A second plurality of mandrels is formed on a second level above the first level. The second plurality of mandrels is formed so that they cross the first plurality of mandrels, when viewed in a top down view. A second plurality of spacers is formed around each of the second plurality of mandrels. The first and the second mandrels are selectively removed to leave a pattern of voids defined by the crisscrossing first and second pluralities of spacers. These spacers can be used as a mask to transfer the pattern of voids to a substrate. The voids can be filled with conductive material to form conductive contacts.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 15, 2012
    Applicant: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Publication number: 20120025869
    Abstract: A non-volatile memory device includes a first metal-oxide-semiconductor (CMOS) device coupled to a bit line and a word line and a second CMOS device coupled to the first CMOS device. The second CMOS device is also coupled to a complementary bit line and a complementary word line. The first and second CMOS devices are complementary to one another. An output node is coupled between the first CMOS device and the second CMOS device. A method of programming a non-volatile field programmable gate array (NV-FPGA) includes coupling an information handling system to the FPGA, performing a block erase of a plurality of memory cells in the FPGA, verifying that the block erase is successful, programming an upper page of the FPGA, verifying that the upper page programming is successful, programming a lower page of the FPGA and verifying that the lower page programming is successful.
    Type: Application
    Filed: August 15, 2011
    Publication date: February 2, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Wei Hung, Chia-Ta Hsieh, Luan C. Tran
  • Publication number: 20110285029
    Abstract: Methods of fabricating semiconductor structures incorporating tight pitch contacts aligned with active area features and of simultaneously fabricating self-aligned tight pitch contacts and conductive lines using various techniques for defining patterns having sublithographic dimensions. Semiconductor structures having tight pitch contacts aligned with active area features and, optionally, aligned conductive lines are also disclosed, as are semiconductor structures with tight pitch contact holes and aligned trenches for conductive lines.
    Type: Application
    Filed: July 29, 2011
    Publication date: November 24, 2011
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: Luan C. Tran
  • Patent number: 8063436
    Abstract: Memory cells including a control gate, a charge trapping material, and a charge blocking material between the control gate and the charge trapping material. The charge blocking material is configured to allow for erasure of the memory cell by enhanced F-N tunneling of holes from the control gate to the charge trapping material.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: November 22, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Arup Bhattacharyya, Kirk D. Prall, Luan C. Tran
  • Patent number: 8043915
    Abstract: Crisscrossing spacers formed by pitch multiplication are used as a mask to form isolated features, such as contacts vias. A first plurality of mandrels are formed on a first level and a first plurality of spacers are formed around each of the mandrels. A second plurality of mandrels is formed on a second level above the first level. The second plurality of mandrels is formed so that they cross, e.g., are orthogonal to, the first plurality of mandrels, when viewed in a top down view. A second plurality of spacers is formed around each of the second plurality of mandrels. The first and the second mandrels are selectively removed to leave a pattern of voids defined by the crisscrossing first and second pluralities of spacers. These spacers can be used as a mask to transfer the pattern of voids to a substrate. The voids can be filled with material, e.g., conductive material, to form conductive contacts.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: October 25, 2011
    Assignee: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Patent number: 8000131
    Abstract: A non-volatile memory device includes a first metal-oxide-semiconductor (CMOS) device coupled to a bit line and a word line and a second CMOS device coupled to the first CMOS device. The second CMOS device is also coupled to a complementary bit line and a complementary word line. The first and second CMOS devices are complementary to one another. An output node is coupled between the first CMOS device and the second CMOS device. A method of programming a non-volatile field programmable gate array (NV-FPGA) includes coupling an information handling system to the FPGA, performing a block erase of a plurality of memory cells in the FPGA, verifying that the block erase is successful, programming an upper page of the FPGA, verifying that the upper page programming is successful, programming a lower page of the FPGA and verifying that the lower page programming is successful.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: August 16, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd
    Inventors: Chih-Wei Hung, Chia-Ta Hsieh, Luan C. Tran
  • Publication number: 20110014574
    Abstract: Methods of forming electrically conductive and/or semiconductive features for use in integrated circuits are disclosed. Various pattern transfer and etching steps can be used, in combination with pitch-reduction techniques, to create densely-packed features. The features can have a reduced pitch in one direction and a wider pitch in another direction. Conventional photo-lithography steps can be used in combination with pitch-reduction techniques to form elongate, pitch-reduced features such as bit-line contacts, for example.
    Type: Application
    Filed: September 30, 2010
    Publication date: January 20, 2011
    Applicant: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Publication number: 20110008970
    Abstract: The invention includes methods of forming isolation regions for semiconductor constructions. A hard mask can be formed and patterned over a semiconductor substrate, with the patterned hard mask exposing a region of the substrate. Such exposed region can be etched to form a first opening having a first width. The first opening is narrowed with a conformal layer of carbon-containing material. The conformal layer is punched through to expose substrate along a bottom of the narrowed opening. The exposed substrate is removed to form a second opening which joins to the first opening, and which has a second width less than the first width. The carbon-containing material is then removed from within the first opening, and electrically insulative material is formed within the first and second openings The electrically insulative material can substantially fill the first opening, and leave a void within the second opening.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Inventors: Ramakanth Alapati, Ardavan Niroomand, Gurtej S. Sandhu, Luan C. Tran
  • Publication number: 20100317193
    Abstract: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.
    Type: Application
    Filed: August 4, 2010
    Publication date: December 16, 2010
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Luan C. Tran, John Lee, Zengtao Tony Liu, Eric Freeman, Russell Nielsen
  • Publication number: 20100289070
    Abstract: Different portions of a continuous loop of semiconductor material are electrically isolated from one another. In some embodiments, the end of the loop is electrically isolated from mid-portions of the loop. In some embodiments, loops of semiconductor material, having two legs connected together at their ends, are formed by a pitch multiplication process in which loops of spacers are formed on sidewalls of mandrels. The mandrels are removed and a block of masking material is overlaid on at least one end of the spacer loops. In some embodiments, the blocks of masking material overlay each end of the spacer loops. The pattern defined by the spacers and the blocks are transferred to a layer of semiconductor material. The blocks electrically connect together all the loops. A select gate is formed along each leg of the loops. The blocks serve as sources/drains.
    Type: Application
    Filed: July 28, 2010
    Publication date: November 18, 2010
    Applicant: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Patent number: 7829262
    Abstract: Methods of forming electrically conductive and/or semiconductive features for use in integrated circuits are disclosed. Various pattern transfer and etching steps can be used, in combination with pitch-reduction techniques, to create densely-packed features. The features can have a reduced pitch in one direction and a wider pitch in another direction. Conventional photo-lithography steps can be used in combination with pitch-reduction techniques to form elongate, pitch-reduced features such as bit-line contacts, for example.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: November 9, 2010
    Assignee: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Publication number: 20100277986
    Abstract: A non-volatile memory device includes a first metal-oxide-semiconductor (CMOS) device coupled to a bit line and a word line and a second CMOS device coupled to the first CMOS device. The second CMOS device is also coupled to a complementary bit line and a complementary word line. The first and second CMOS devices are complementary to one another. An output node is coupled between the first CMOS device and the second CMOS device. A method of programming a non-volatile field programmable gate array (NV-FPGA) includes coupling an information handling system to the FPGA, performing a block erase of a plurality of memory cells in the FPGA, verifying that the block erase is successful, programming an upper page of the FPGA, verifying that the upper page programming is successful, programming a lower page of the FPGA and verifying that the lower page programming is successful.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Wei Hung, Chia-Ta Hsieh, Luan C. Tran
  • Publication number: 20100264482
    Abstract: Memory cells including a control gate, a charge trapping material, and a charge blocking material between the control gate and the charge trapping material. The charge blocking material is configured to allow for erasure of the memory cell by enhanced F-N tunneling of holes from the control gate to the charge trapping material.
    Type: Application
    Filed: July 2, 2010
    Publication date: October 21, 2010
    Inventors: Arup Bhattacharyya, Kirk D. Prall, Luan C. Tran
  • Patent number: 7808053
    Abstract: Embodiments of the present invention provide apparatus, methods and systems that include a substrate including a central region and a peripheral region; a plurality of layers above a surface of the substrate, a first plurality of pitch-multiplied spacers on a top surface of the plurality of layer, the first plurality of pitch-multiplied spacers being above the central region of the substrate, and a second plurality of pitch-multiplied spacers on the top surface of the plurality of layers, the second plurality of pitch-multiplied spacers above the peripheral region and including at least one pitch-multiplied spacer having a surface at a distance from the at least one pitch multiplied spacer having a surface at the boundary.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: October 5, 2010
    Assignee: Intel Corporation
    Inventors: Gordon Haller, Luan C. Tran
  • Publication number: 20100243161
    Abstract: Crisscrossing spacers formed by pitch multiplication are used as a mask to form isolated features, such as contacts vias. A first plurality of mandrels are formed on a first level and a first plurality of spacers are formed around each of the mandrels. A second plurality of mandrels is formed on a second level above the first level. The second plurality of mandrels is formed so that they cross, e.g., are orthogonal to, the first plurality of mandrels, when viewed in a top down view. A second plurality of spacers is formed around each of the second plurality of mandrels. The first and the second mandrels are selectively removed to leave a pattern of voids defined by the crisscrossing first and second pluralities of spacers. These spacers can be used as a mask to transfer the pattern of voids to a substrate. The voids can be filled with material, e.g., conductive material, to form conductive contacts.
    Type: Application
    Filed: June 10, 2010
    Publication date: September 30, 2010
    Applicant: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Patent number: 7799694
    Abstract: The invention includes methods of forming isolation regions for semiconductor constructions. A hard mask can be formed and patterned over a semiconductor substrate, with the patterned hard mask exposing a region of the substrate. Such exposed region can be etched to form a first opening having a first width. The first opening is narrowed with a conformal layer of carbon-containing material. The conformal layer is punched through to expose substrate along a bottom of the narrowed opening. The exposed substrate is removed to form a second opening which joins to the first opening, and which has a second width less than the first width. The carbon-containing material is then removed from within the first opening, and electrically insulative material is formed within the first and second openings. The electrically insulative material can substantially fill the first opening, and leave a void within the second opening.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: September 21, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Ramakanth Alapati, Ardavan Niroomand, Gurtej S. Sandhu, Luan C. Tran