Patents by Inventor Denny Tang

Denny Tang 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: 7035083
    Abstract: A capacitor for use within a microelectronic product employs a first capacitor plate layer that includes a first series of horizontally separated and interconnected tines. A capacitor dielectric layer separates the first capacitor plate layer from a second capacitor plate layer. The second capacitor plate layer includes a second series of horizontally separated and interconnected tines horizontally interdigitated with the first series of horizontally separated and interconnected tines. The capacitor is formed employing a self-aligned method and the capacitor dielectric layer is formed in a serpentine shape.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: April 25, 2006
    Assignee: Taiwan Semiconductor Manufacturing Co Ltd
    Inventors: Wen-Chin Lin, Denny Tang, Li-Shyue Lai, Chung-Long Chang, Chun-Hon Chen
  • Publication number: 20060060934
    Abstract: An integrated circuit structure for isolating substrate noise and a method of forming the same are provided. In the preferred embodiment of the present invention, a semi-insulating region is formed using proton bombardment in a substrate between a first circuit region and a second circuit region. Two guard rings are formed along the semi-insulating region, each on a side. A backside semi-insulating region is formed through proton bombardment from the back surface of the substrate into the substrate. The backside semi-insulating region is preferably connected with the semi-insulating region. A grounded guard layer is preferably formed on the backside semi-insulating region.
    Type: Application
    Filed: March 24, 2005
    Publication date: March 23, 2006
    Inventors: Wai-Yi Lien, Denny Tang
  • Publication number: 20060039183
    Abstract: A memory cell including a switching element having a source and a drain, a first magnetic tunnel junction (MTJ) device, and a second MTJ device. The first MTJ device has a first tunneling junction resistance and is coupled to a first one of the switching element source and drain. The second MTJ device has a second tunneling junction resistance and is coupled to a second one of the switching element source and drain. The second resistance is substantially less than the first resistance.
    Type: Application
    Filed: May 21, 2004
    Publication date: February 23, 2006
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wen Lin, Denny Tang, Chien-Chung Hung, Wen-Chin Lee
  • Publication number: 20060038210
    Abstract: The present disclosure provides an improved magnetic memory cell. The magnetic memory cell includes a switching element and two magnetic tunnel junction (MTJ) devices. A conductor connects the first and second MTJ devices in a parallel configuration, and serially connecting the parallel configuration to an electrode of the switching element. The resistance of the first MTJ device is different from the resistance of the second.
    Type: Application
    Filed: August 23, 2004
    Publication date: February 23, 2006
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wen Chin Lin, Denny Tang, Chien-Chung Hung
  • Publication number: 20060033133
    Abstract: A magnetic memory includes two first magnetic layers each oriented over a substrate, a second magnetic layer interposing the two first magnetic layers, and two dielectric layers each contacting the second magnetic layer and interposing the second magnetic layer and one of the two first magnetic layers. Each of the first and second magnetic layers and the dielectric layers may be oriented substantially perpendicular to the substrate or at an acute angle relative to the substrate.
    Type: Application
    Filed: February 8, 2005
    Publication date: February 16, 2006
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Kuo-Ching Chiang, Horng-Huei Tseng, Denny Tang
  • Publication number: 20060033136
    Abstract: An apparatus including a pillar located over a substrate and having at least one sloped surface oriented at an acute angle relative to the substrate. The apparatus also includes an MRAM stack substantially conforming to the sloped surface, the MRAM stack thereby also oriented at the acute angle relative to the substrate. The MRAM stack may comprise a plurality of substantially planar, parallel layers each oriented at an acute angle relative to the substrate.
    Type: Application
    Filed: August 13, 2004
    Publication date: February 16, 2006
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Kuo-Ching Chiang, Horng-Huei Tseng, Denny Tang
  • Publication number: 20050243598
    Abstract: A non-destructive technique and related array for writing and reading magnetic memory cells, including sampling a first signal of a selected read line corresponding to select memory cells, applying a magnetic field to the select memory cells, sampling a second signal of the selected read line, and comparing the first and second signals to determine a logic state of the select memory cells.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 3, 2005
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Chin Lin, Denny Tang, Li-Shyue Lai, Chao-Hsiung Wang, Fang-Shi Lai
  • Publication number: 20050234659
    Abstract: A magnetic random access memory device (MRAM) and the method for forming the same are disclosed. The MRAM has a magnetic tunnel junction (MTJ) device, a first write line, and a second write line orthogonal to the first write line, wherein at least one of the first and second write lines has a width narrower than that of the MTJ.
    Type: Application
    Filed: April 20, 2004
    Publication date: October 20, 2005
    Inventors: Wen Lin, Denny Tang, Li-shyue Lai, Chao-Hsiung Wang
  • Publication number: 20050232005
    Abstract: An MRAM cell including an MRAM cell stack located over a substrate and first and second write lines spanning at least one side of the MRAM cell stack and defining a projected region of intersection of the MRAM cell stack and the first and second write lines. The MRAM cell stack includes a pinned layer, a tunneling barrier layer, and a free layer, the tunneling barrier layer interposing the pinned layer and the free layer. The first write line extends in a first direction within the projected region of intersection. The second write line extends in a second direction within the projected region of intersection. The first and second directions are angularly offset by an angle ranging between 45 and 90 degrees, exclusively. At least one write line may be perpendicular to the easy axis of free layer, while the other line may be rotated off the easy axis of the free layer by an angle which is larger than zero, such as to compensate for a shifting astroid curve.
    Type: Application
    Filed: April 19, 2004
    Publication date: October 20, 2005
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wen Lin, Denny Tang, Li-Shyue Lai
  • Publication number: 20050227493
    Abstract: A microelectronics device including a semiconductor device located at least partially over a substrate, a bombarded area located at least partially over the substrate and adjacent the semiconductor device, and a bombarded attenuator interposing the semiconductor device and the bombarded area.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 13, 2005
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Chin Lin, Denny Tang, Chao-Hsiung Wang
  • Publication number: 20050218346
    Abstract: A method and system is disclosed for directing charged particles on predetermined areas on a target semiconductor substrate. After aligning a wafer mask with a semiconductor wafer, with the wafer mask having one or more mask patterns thereon, the charged particles are directed to pass through the mask patterns to land on one or more selected areas on the semiconductor wafer.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 6, 2005
    Inventors: Wen Lin, Denny Tang, Li-shyue Lai, John Chern, Jyh-Chyurn Guo, Wan-Yih Lien
  • Publication number: 20050206469
    Abstract: A capacitor for use within a microelectronic product employs a first capacitor plate layer that includes a first series of horizontally separated and interconnected tines. A capacitor dielectric layer separates the first capacitor plate layer from a second capacitor plate layer. The second capacitor plate layer includes a second series of horizontally separated and interconnected tines horizontally interdigitated with the first series of horizontally separated and interconnected tines. The capacitor is formed employing a self-aligned method and the capacitor dielectric layer is formed in a serpentine shape.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 22, 2005
    Inventors: Wen-Chin Lin, Denny Tang, Li-Shyue Lai, Chung-Long Chang, Chun-Hon Chen
  • Publication number: 20050191804
    Abstract: A phase change memory structure and method for forming the same, the method including providing a substrate comprising a conductive area; forming a spacer having a partially exposed sidewall region at an upper portion of the spacer defining a phase change memory element contact area; and, wherein the spacer bottom portion partially overlaps the conductive area. Both these two methods can reduce active area of a phase change memory element, therefore, reducing a required phase changing electrical current.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 1, 2005
    Inventors: Li-Shyue Lai, Chao-Hsiung Wang, Denny Tang, Wen-Chin Lin
  • Publication number: 20050184282
    Abstract: A phase change memory cell includes a resistive heating element for a phase change body that can expeditiously and efficiently heat a portion of the body with the voltage and current usable with MOSFETs. This is achieved through minimizing the area of an interface between a conductive layer and the body by permitting photolithographic techniques to define one dimension of the interface and thin film deposition techniques to define the other dimension.
    Type: Application
    Filed: February 20, 2004
    Publication date: August 25, 2005
    Inventors: Li-Shyue Lai, Denny Tang, Wen-chin Lin
  • Publication number: 20050180203
    Abstract: In one example, an MRAM memory array includes a plurality of word lines, a plurality of bit lines crossing the word lines, and a plurality of first and second diodes, and magnetic tunnel junction memories. Each first diode includes a cathode, and an anode coupled to each bit line. Each second diode includes an anode, and a cathode coupled to each word line. The magnetic tunnel junction memories include a pinned layer, a free layer, and a non-magnetic layer. The non-magnetic layer is located between the pinned layer and the free layer. Each diode is positioned at crossing points of the bit lines and the word lines and connected between the first diode at the corresponding crossing bit line and the second diode at the corresponding crossing word line.
    Type: Application
    Filed: February 16, 2004
    Publication date: August 18, 2005
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wen-Chin Lin, Denny Tang, Li-Shyue Lai
  • Publication number: 20050168914
    Abstract: A new capacitor device having two terminals is achieved. The device comprises a plurality of first conductive lines overlying a substrate. Each of the first conductive lines is connected to one of the capacitor device terminals. The adjacent first conductive lines are connected to opposite terminals. The first conductive lines comprise a plurality of conductive materials. A plurality of second conductive lines overlie the plurality of first conductive lines. Each of the second conductive lines is connected to one of the capacitive device terminals. Adjacent second conductive lines are connected to opposite terminals. Any second conductive line overlying any first conductive line is connected to an opposite terminal. The second conductive lines comprises a plurality of conductive materials. A first dielectric layer overlies the substrate and lies between the adjacent first conductive lines. A second dielectric layer lies between the first conductive lines and the second conductive lines.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Denny Tang, Wen-Chin Lin, Li-Shyue Lai, Chun-Hon Chen, Chung-Long Chang
  • Publication number: 20050128848
    Abstract: In magnetic memories it is important to be able to switch the states of the memory elements using minimal power i.e. external fields of minimal intensity. This has been achieved by giving each memory element an easy axis whose direction parallels its minimum surface dimension. Then, when the magnetic state of the element is switched by rotating its direction of magnetization, said rotation is assisted, rather than being opposed, by the crystalline anisotropy. Consequently, relative to the prior art, a lower external field is required to switch the state of the element.
    Type: Application
    Filed: January 18, 2005
    Publication date: June 16, 2005
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Denny Tang
  • Publication number: 20050122770
    Abstract: In magnetic memories it is important to be able to switch the states of the memory elements using minimal power i.e. external fields of minimal intensity. This has been achieved by giving each memory element an easy axis whose direction parallels its minimum surface dimension. Then, when the magnetic state of the element is switched by rotating its direction of magnetization, said rotation is assisted, rather than being opposed, by the crystalline anisotropy. Consequently, relative to the prior art, a lower external field is required to switch the state of the element.
    Type: Application
    Filed: January 18, 2005
    Publication date: June 9, 2005
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Denny Tang
  • Publication number: 20050083747
    Abstract: A multilevel reference generator has a plurality of nonlinear standard resistive elements where each resistive element is biased at a constant level to develop a resultant level. The multilevel reference generator has a plurality of mirror sources. Each mirror source is in communication with the one of the plurality of resistive elements such that each mirror source receives the resultant level from the one standard resistive element and provides a mirrored replication of the resultant level. The multilevel reference generator has a plurality of reference level combining circuits. The reference level combining circuit includes a resultant level summing circuit that additively combines the first and second mirrored replication level and a level scaling circuit to create a scaling of the combined first and second mirrored replication levels to create the reference level.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 21, 2005
    Inventors: Denny Tang, Wen-Chin Lin
  • Publication number: 20050077485
    Abstract: A method and system is disclosed for concentrating high energy particles on a predetermined area on a target semiconductor substrate. A high energy source for generating a predetermined amount of high energy particles, and an electromagnetic radiation source for generating low energy beams are used together. The system also uses a mask set having at least one mask with at least one alignment area and at least one mask target area thereon, the mask target area passing more high energy particles then any other area of the mask. At least one protection shield is incorporated in the system for protecting the alignment area from being exposed to the high energy particles, wherein the mask is aligned with the predetermined target semiconductor substrate by passing the low energy beams through the alignment area, wherein the high energy particles generated by the high energy source pass through the mask target area to land on the predetermined area on the target semiconductor substrate.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 14, 2005
    Inventors: Chao-Hsiung Wang, Denny Tang, Wen-Chin Lin, Li-Shyue Lai