Patents Assigned to Mosel Vitelic Inc.
  • Patent number: 6617636
    Abstract: In a nonvolatile memory, select gates are self-aligned spacers formed on sidewalls of floating/control gate stacks. The same mask (1710) is used to remove the select gate layer from over the source lines (144), to etch trench insulation in the source line regions, and to dope the source lines. The memory can be formed in and over an isolated substrate region. The source lines can be doped at least partially before the trench insulation is etched, to prevent a short before the source lines and a region isolating the isolated substrate region from below. The memory can be erased by sectors, or alternatively a chip erase operation can be performed to erase all the cells in parallel. Peripheral transistor gates can be formed from the same layer as the select gates. The select gate spacers have extensions to which low resistance contacts can be made from overlying metal lines.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: September 9, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Hsing Ti Tuan, Li-Chun Li, Thomas Tong-Long Chang
  • Patent number: 6613672
    Abstract: A process of fabricating a deep trench capacitor includes the steps of: depositing a nitride masking layer over a substrate; removing portions of the nitride masking layer and substrate to form an exposed deep trench having sidewalls and a bottom surface; forming an oxide fill plug to fill a bottom portion of the trench; removing the oxide fill plug from the trench; doping a region of the substrate enveloping the bottom portion of the trench; depositing a spacer insulating layer over the sidewalls and bottom surface of the trench; removing a portion of the spacer insulating layer to expose a central portion of the bottom surface of the trench; depositing a conducting layer over the spacer insulating layer, and the exposed central portion of the bottom surface, the conducting layer and the doped region of the substrate being in electrical contact and forming a first plate of the capacitor; removing a portion of the conducting layer; removing the spacer insulating layer to expose outer walls of the conducting l
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: September 2, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Tso-Chun Tony Wang, Houng-Chi Wei
  • Patent number: 6615157
    Abstract: Systems, methods, and computer program products for analyzing experiment results obtained in a process are provided. The process is conducted separately in a first and second state of a control variable to generate a first and second plurality of experiment data, respectively. The experiment data corresponds to a plurality of attributes of the process. A processor is included in the systems for comparing the first and second plurality of experiment data, and identifying attributes having a statistically significant difference in their corresponding experiment data obtained in the first and second state of the process. The identified attributes are then compared with attributes expected to be affected by changes in the control variable, which are contained in a know-how database, in order to create a conformity database and a non-conformity database.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 2, 2003
    Assignees: ProMos Technologies, Inc., Mosel Vitelic Inc., Siemens AG
    Inventor: Yuchuan Tsai
  • Patent number: 6606088
    Abstract: An LCD panel signal processor is disclosed. The LCD panel signal processor of the present invention is applied to an LCD panel having a gate driver and a source driver, and comprises: an input interface for receiving plural types of video signals; a micro-processing device for outputting a first control signal which controls the input interface to select a first type video signal from the plural types of video signals, converting the first type video signal into a digital video signal having an output format, and simultaneously sending an information signal to inform a panel controller of the output format. The panel controller receives the digital video signal according to the output format and generates a gate driver signal and a source driver signal for the gate driver and the source driver.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: August 12, 2003
    Assignee: Mosel Vitelic Inc.
    Inventors: Jeffrey Yang, Justin Liu, Kane Hsu, Harchson Wen
  • Patent number: 6597201
    Abstract: A predecoder circuit for use in association with a memory circuit is shown to have a dynamic NAND gate formed by series-coupled transistors controlled by a bank active select signal and a row address selection signal. The predecoder circuit also includes a precharge circuit coupled to the dynamic NAND gate and controlled by a precharge signal. The predecoder circuit further includes a first inverter having an input terminal electrically coupled to the dynamic NAND gate and an output terminal selectively electrically connectable to at least one row decoder circuit for the memory circuit. The predecoder circuit finally includes a second inverter arranged in feedback with the first inverter to form a latch.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: July 22, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Michael C. Parris, Kim Carver Hardee
  • Publication number: 20030116796
    Abstract: A trench capacitor with an expanded area for use in a memory cell and a method for making the same are provided. The trench capacitor includes a vertical trench formed in a semiconductor, a doping region formed around a low portion of the trench, a collar isolation layer formed on an inner sidewall of an upper portion of the trench, a doped silicon liner layer formed on a surface of the collar isolation layer, wherein the doped silicon liner layer is electrically connected to the doping region, a dielectric layer formed on a surface of the doped silicon liner layer and inner sidewall of the lower portion of the trench, and a doped silicon material formed inside the trench.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 26, 2003
    Applicant: Mosel Vitelic Inc.
    Inventor: Wei-Shang King
  • Patent number: 6584018
    Abstract: In each row of a nonvolatile memory array, the select gates of all the memory cells are connected together and are used to select a row for memory access. The control gates of each row are also connected together, and the source regions of each row are connected together. Also, the control gates of plural rows are connected together, and the source regions of plural rows are connected together, but if the source regions of two rows are connected together, then their control gates are not connected together. If one of the two rows is being accessed but the other one of the two rows is not being accessed, their control gates are driven to different voltages, reducing the probability of a punch-through in the non-accessed row.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: June 24, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Hsing T. Tuan, Li-Chun Li, Vei-Han Chan
  • Patent number: 6584578
    Abstract: An arbitration method and circuit for control of double data rate (“DDR”) dynamic random access memory (“DRAM”) device first-in, first-out (“FIFO”) registers which allows the data path of the device to be functional over a wider range of system clock and delay locked loop (“DLL”) clock signal skews. By comparing the system and DLL clocks, the circuit and method of the present invention determines whether the DLL clock should be considered “faster” than the system clock, or “slower.” Functionally, it then attempts to force all cases into the “fast” condition until a determination is made that the amount of advance is now so fast, that data corruption in the pipeline might occur. Only in this case will it force the result to be “slow,” adding 1 cycle to the output control path, and thereby correcting the data flow.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: June 24, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventor: Jon Allan Faue
  • Patent number: 6580960
    Abstract: A system and method for finding operation/tool's combination which causes the integration failure in a semiconductor fabrication facility is disclosed. It comprises the steps of generating a candidate operation/tool list by selecting the operation/tool's that are more likely to cause said failure. Assign a weight value to each lot in the lot list for each operatioon/tool in said candidate operation/tool list, the weight value being a predetermined positive value for a bad lot, and a negative value for a good lot. Then select any pair of operation/tool's from said candidate operation/tool list and calculate a peak combination cumulative value for that pair of operation/tool's. Rank each pair of operation/tool's according to their corresponding peak combination cumulative values. It is determined the pair of operation/tool's with the greatest peak combination cumulative value the most likely to cause said failure.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: June 17, 2003
    Assignees: ProMos Technologies, Inc., Mosel Vitelic, Inc., Infineon Technologies AG.
    Inventor: Mark Nicholson
  • Patent number: 6571488
    Abstract: Embodiments of the present invention relate to an apparatus for spin drying substrates in a spin dryer tank. A spin dryer cover is movable between a closed position to close an opening of the spin dryer tank and an open position to open the spin dryer tank, and a cylinder is coupled with the spin dryer cover. The cylinder is movable in a first operation to move the spin dryer cover to the open position and movable in a second operation to move the spin dryer cover to the closed position. A system for sensing the position of the spin dryer cover comprises a cylinder sensor configured to sense the first operation and the second operation of the cylinder. A cover sensor is configured to sense the position of the spin dryer cover. A logic circuit is configured to output a cover opening signal indicating that the spin dryer cover is in the open position when the cylinder sensor senses the first operation of the cylinder and the cover sensor senses that the spin dryer cover is in the open position.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: June 3, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Yu Chih Lin, Chih Hsin Tsai, Ming Hua Shih, Shih Kai Pao
  • Patent number: 6570215
    Abstract: In a nonvolatile memory, a floating gate includes a portion of a conductive layer (150), and also includes conductive spacers (610). The spacers increase the capacitive coupling between the floating gate and the control gate (170).
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: May 27, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Hsing T. Tuan, Vei-Han Chan, Chung Wai Leung, Chia-Shun Hsiao
  • Patent number: 6568988
    Abstract: A chemical mechanical polishing apparatus has a plurality of electric machines for executing mechanical polishing motions, at least two control systems for controlling the mechanical polishing motions, at least two signal wires connected with the two control systems for transmitting signals of the two control systems, and a wave filter comprising two terminals connected with the two signal wires respectively for filtering out the signal whose voltage exceeds a predetermined value in the two signal wires.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: May 27, 2003
    Assignee: Mosel Vitelic Inc.
    Inventors: Yi-Hua Chin, Hua-Jen Tseng, Chun-Chieh Lee, Dong-Tay Tsai
  • Publication number: 20030096485
    Abstract: Embodiment of the present invention are directed to improving the performance of a DMOS transistor. A method of fabricating a DMOS transistor comprises providing a semiconductor substrate having a gate oxide and a trenched gate, and implanting first conductive dopants into a surface of the semiconductor substrate adjacent to the trenched gate to form a first doping region. An insulating layer is deposited over the semiconductor substrate; and selectively etching the insulating layer to form a source contact window over a central portion of the first doping region and to leave an insulator structure above the trenched gate. The source contact window of the insulating layer has an enlarged top portion which is larger in size than a bottom portion of the source contact window closer to the first doping region than the enlarged top portion. The enlarged top portion is typically bowl-shaped.
    Type: Application
    Filed: May 29, 2002
    Publication date: May 22, 2003
    Applicant: MOSEL VITELIC, INC.
    Inventors: Chiao-Shun Chuang, Chien-Ping Chang, Mao-Song Tseng, Cheng-Tsung Ni
  • Patent number: 6566196
    Abstract: In a nonvolatile memory, a floating gate (124) is covered with ONO (98), and a control gate polysilicon layer (124) is formed on the ONO. After the control gate is patterned, the control gate sidewalls are oxidized to form a protective layer (101) of silicon dioxide. This oxide protects the control gate polysilicon during a subsequent etch of the silicon nitride portion (98.2) of the ONO. Therefore, the silicon nitride can be removed with an isotropic etch. A potential damage to the substrate isolation dielectric (210) is therefore reduced. Other embodiments are also provided.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: May 20, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Barbara Haselden, Chia-Shun Hsiao, Chunchieh Huang, Jin-Ho Kim, Chung Wai Leung, Kuei-Chang Tsai
  • Patent number: 6563166
    Abstract: A memory device includes a first memory cell and a second memory cell both controlled by a common control gate. The device includes: a substrate; first and second stacks each including an insulating layer formed over the substrate, a first conductive layer formed over the insulating layer and providing a select gate, and a first dielectric layer formed over the first conductive layer, each of the stacks also including an inner sidewall and an outer sidewall, the. stacks being separated by a common area of the substrate, the inner and outer sidewalls of the stacks being coated with a second dielectric layer; first and second spacers formed adjacent the inner sidewalls of the first and second stacks respectively, the first and second spacers being separated by a medial portion of the common source area of the substrate, each of the spacers.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: May 13, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventor: Cheng-Tsung Ni
  • Patent number: 6563747
    Abstract: An integrated data input sorting and timing circuit for double data rate (“DDR”) dynamic random access memory (“DRAM”) devices in which a sorting of the input data into odd/even is integrated with the necessary timing to allow synchronization with the on-chip Y-clock signal (column address select) without the need to provide separate circuits. In those devices having multiple DQS inputs, any skew between DQS pins is allowed as long as no one DQS pin violates the DQS-to-clock (“DQS-CLK”) skew requirements. The circuit and method of the present invention also allows a write to occur at command +2 cycles (last data+½). Functionally, both rising and falling data (i.e., data on the rising and falling edges of DQS) is captured by the DQS inputs and presented in parallel to the chips internal write path and data is passed on the falling edge of DQS.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: May 13, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventor: Jon Allan Faue
  • Patent number: 6562681
    Abstract: In a nonvolatile memory, a floating gate includes a portion of a conductive layer (150), and also includes conductive spacers (610). The spacers increase the capacitive coupling between the floating gate and the control gate (170).
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: May 13, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Hsing T. Tuan, Vei-Han Chan, Chung-Wai Leung, Chia-Shun Hsiao
  • Patent number: 6559055
    Abstract: Circuit elements (e.g. transistor gates) formed over a semiconductor substrate are protected by adjacent dummy structures during mechanical or chemical mechanical polishing of an overlying dielectric.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 6, 2003
    Assignee: Mosel Vitelic, Inc.
    Inventors: Hsing Ti Tuan, Chung Wai Leung
  • Publication number: 20030068901
    Abstract: Embodiments of the present invention are directed to an improved method for forming dual oxide layers at the bottom of a trench of a substrate. A substrate has a trench which includes a bottom and a sidewall. The trench may be created by forming a mask oxide layer on the substrate; defining the mask oxide layer to form a patterned mask oxide layer and exposing a partial surface of the substrate to form a window; and using the patterned mask oxide layer as an etching mask to form the trench in the window. A first oxide layer is formed on the sidewall and the bottom of the trench of the substrate. A photoresist layer is formed on the substrate, filling the trench of the substrate. The method further comprises partially etching back the photoresist layer to leave a remaining photoresist layer in the trench. The height of the remaining photoresist layer is lower than the depth of the trench. A curing treatment of the remaining photoresist layer is performed after the partial etching.
    Type: Application
    Filed: August 29, 2002
    Publication date: April 10, 2003
    Applicant: MOSEL VITELIC, INC.
    Inventors: Chiao-Shun Chuang, Chien-Ping Chang, Mao-Song Tseng, Cheng-Tsung Ni
  • Publication number: 20030068868
    Abstract: Embodiments of the present invention relate to a method of making an IC capacitor. In one embodiment, the method comprises providing a substrate, forming a polycide layer on the substrate, and forming an insulating amorphous silicon layer on the polycide layer. The insulating amorphous silicon layer serves as an anti-reflection layer. The method further comprises implanting n-type ions into the insulating amorphous silicon layer to transform the insulating amorphous silicon layer into a conductive amorphous silicon layer, and patterning the polycide layer and the conductive amorphous silicon layer to form a bottom electrode on the substrate. A dielectric layer is formed on the bottom electrode and the substrate, and a conductor layer is formed on the dielectric layer. The conductor layer is patterned to form a top electrode on the dielectric layer.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 10, 2003
    Applicant: MOSEL VITELIC, INC.
    Inventors: Chun-Pey Cho, Tsai-Sen Lin, Chou-Shin Jou, Chuan-Yi Wang, Jen-Chieh Chang, Yi-Fu Chung, Huei-Ping Hsieh