Patents Assigned to Raydium Semiconductor Corporation
  • Integrated circuit wafer dicing method
    Patent number: 8617963
    Abstract: An integrated circuit wafer dicing method is provided. The method includes forming a plurality of integrated circuits and a plurality of test-keys on a wafer substrate, wherein the plurality of test-keys are disposed between the adjacent integrated circuits; forming a patterned protective film on the wafer to cover the plurality of integrated circuits and expose the plurality of test-keys; etching the plurality of test-keys by using the patterned protective film as a mask; and dicing an area between the plurality of integrated circuits to form a plurality of discrete integrated circuit dies.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: December 31, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Ching-San Lin, Kun-Tai Wu, Chih-Chao Wang
  • Optical touch apparatus and operating method thereof
    Patent number: 8619061
    Abstract: An optical touch apparatus is disclosed. The optical touch apparatus comprises at least one light sensing module and a processing module. The at least one light sensing module is set at a first side of a surface of the optical touch apparatus, and used for receiving at least one light and generating a sensing result according to the condition of receiving the at least one light. The sensing result relates to whether the at least one light is blocked by at least one object above the surface and also relates to a comparing result between the at least one object and a reference region. The reference region is set at an opposite second side of the surface. The processing module determines at least one touch point position corresponding to the at least one object on the surface according to the sensing result.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: December 31, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Meng Shin Yen, William Wang, Chung Cheng Chou
  • Level shifter
    Patent number: 8618861
    Abstract: A level shifter is disclosed and includes at least four Type 1 transistors and at least four Type 2 transistors. The sources of several Type 1 transistors are electrically connected to a first voltage terminal while the sources of several Type 2 transistors are connected to a second voltage terminal. The level shifter receive an input signal and outputs a logically equivalent output signal with higher voltage, wherein the voltage of the output signal is between the voltages of the first voltage terminal and the second voltage terminal.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: December 31, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventor: Ying-Lieh Chen
  • DRIVING CIRCUIT, DRIVING METHOD, AND STORING METHOD
    Publication number: 20130328595
    Abstract: A driving circuit includes at least one output end, at least one driving voltage module, and at least one signal module. The output end receives and outputs an analog voltage. The at least one driving voltage module is connected with the at least one output end and generates a driving voltage, wherein the driving voltage module determines a voltage value of an output voltage according to a relation between an analog voltage and the driving voltage and transmits the output voltage to the at least one output end. The at least one signal module is connected with the at least one output end and outputs an analog data according to the analog voltage, wherein the at least one driving voltage module stores a residual voltage of the at least one signal module when the at least one signal module converts the analog voltage and the analog voltage is larger than the driving voltage.
    Type: Application
    Filed: January 14, 2013
    Publication date: December 12, 2013
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventor: Cheng-Chin Liu
  • Optical touch apparatus with high resolution and method of operating the same
    Patent number: 8593435
    Abstract: An optical touch apparatus includes an inputting interface, an optical module, a light receiving module, and a processing module. The inputting interface includes a surface and a light transmitting unit under the surface. The optical module and the light receiving module are set on a first side and a second side of the inputting interface. The optical module receives an incident beam and generates a plurality of parallel sensing lights according to the incident beam. When the plurality of parallel sensing lights pass the light transmitting unit to the light receiving module, the light receiving module generates a sensing result according to the condition the light receiving module receives the plurality of sensing lights. The processing module determines a touch point position formed on the surface according to the sensing result.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: November 26, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Meng-Shin Yen, William Wang, Chung-Cheng Chou
  • Optical touch system and operating method thereof
    Patent number: 8593414
    Abstract: An optical touch system is disclosed. The optical touch system includes an optical touch apparatus, a control apparatus, and a rotating apparatus. When the control apparatus receives a mode switching signal, the control apparatus selects a corresponding specific using mode from a plurality of default using modes according to the mode switching signal. And, the specific using mode corresponds to a specific rotating angle. The rotating apparatus rotates the optical touch apparatus with the specific rotating angle to make the optical touch apparatus is rotated from a first location to a second location, so that a user can perform an input action via the optical touch apparatus according to the specific using mode.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: November 26, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Meng-Shin Yen, William Wang, Chung-Cheng Chou
  • DRIVING CIRCUIT
    Publication number: 20130278143
    Abstract: A driving circuit includes a plurality of light-emitting units, a plurality of switches, and a bias current module, wherein the light-emitting units are coupled with each other in series and are driven with an input voltage varying according to a frequency. Each switch has a reference voltage and a critical activation voltage and includes a light-emitting end and a bias end opposite to the light-emitting end, wherein the light-emitting end is coupled with the light-emitting units, and the bias ends of the switches are coupled with each other. The bias current module is coupled with the bias ends of the switches and has an operating bias voltage varying according to the frequency, wherein each switch is driven to be activated or to be deactivated according to a relation of the critical activation voltage and a difference between the reference voltage and the operating bias voltage.
    Type: Application
    Filed: December 17, 2012
    Publication date: October 24, 2013
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventors: Chih-Wei Chu, Yung-Hsiang Yang, Shu-Kuang Chou
  • Optical touch apparatus and operating method thereof
    Patent number: 8564570
    Abstract: An optical touch apparatus including an input interface, at least one sensing module, and a processing module is disclosed. The input interface includes at least one functional input key, and the position of the at least one functional input key disposed on the input interface corresponds to that of the at least one sensing module disposed on the surrounding of the input interface. The at least one sensing module generates a sensing result according to the condition that the at least one sensing module receives sensing lights. The processing module determines touch point position formed on the input interface according to the sensing result.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: October 22, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chung-Cheng Chou, William Wang, Meng-Shin Yen
  • METHOD OF CONTROLLING NOISE PROCESSING CIRCUIT OF TOUCH PANEL AND RELATED NOISE PROCESSING APPARATUS
    Publication number: 20130271398
    Abstract: The present invention provides a method of controlling a noise processing circuit of a touch panel and a related noise signal processing apparatus. At first, the present invention detects whether the touch panel is interfered with by noise. Then, according to whether the noise interferes with the touch panel, the noise processing circuit is controlled to be activated or not activated. Therefore, the noise processing circuit can be turned off if it is unnecessary, thereby to reduce the workload due to the noise processing.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 17, 2013
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventors: Hsu-Ming Chuang, Shih-Tzung Chou
  • CHIP STRUCTURE, CHIP BONDING STRUCTURE USING THE SAME, AND MANUFACTURING METHOD THEREOF
    Publication number: 20130249086
    Abstract: A chip structure, a chip bonding structure, and manufacturing methods thereof are provided. The chip structure includes a chip, a plurality of bumps, and an insulation layer. The bumps are disposed on the chip. Each bump has a first bump portion and a second bump portion connected to each other, wherein the first bump portion and the second bump portion have different activities. The bumps are subjected to chemical reaction to form an insulation layer on the surface of one of the first bump portion and the second bump portion which has higher activity, so as to avoid short-circuit between the adjacent bumps.
    Type: Application
    Filed: April 13, 2013
    Publication date: September 26, 2013
    Applicant: Raydium Semiconductor Corporation
    Inventor: Ching-San Lin
  • Source driver and receiver thereof
    Patent number: 8542038
    Abstract: A source driver and a receiver thereof are disclosed. A two-stage amplifier of the receiver includes a first-stage circuit and a second-stage circuit. The second-stage circuit includes a first switch, a second switch, a third switch, a first node, and a second node. The first switch is coupled between the first node and a ground end; the second switch is coupled between the second node and the ground end; the third switch is coupled between the first node and the second node. When the receiver wants to wake up from a power-saving mode to a normal operation mode, the first switch and the second switch are switched to the off-state according to a control signal at first; after a period of delay time, the third switch is also switched to the off-state according to a delayed control signal.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: September 24, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Ren-Feng Huang, Hui-Wen Miao, Ko-Yang Tso
  • Controlling apparatus and controlling method for signal outputing circuit and video system
    Patent number: 8542277
    Abstract: The invention discloses a controlling apparatus for a signal outputting circuit in an electronic system. The controlling apparatus includes a detecting circuit, a switch, and a controlling circuit. The detecting circuit is used for detecting whether the electronic system has an abnormal condition. The switch is electrically connected between a signal receiving terminal and the signal outputting circuit. The controlling circuit is electrically connected between the detecting circuit and the switch. Once the detecting circuit detects that the electronic system has the abnormal condition, the controlling circuit sets the switch into a high-impedance state.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: September 24, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chih-Chuan Huang, Hui-Wen Miao, Ko-Yang Tso
  • DRIVING CIRCUIT, OPERATIONAL AMPLIFIER, AND DATA TRANSMITTING METHOD THEREOF
    Publication number: 20130241648
    Abstract: A data transmitting method is provided, wherein an operational amplifier is coupled with a channel and includes a positive switch, a negative switch, and a coupling end; the positive switch includes a positive control unit and a positive switch unit; the negative switch includes a negative control unit and a negative switch unit. The data transmitting method includes: transmitting an analog data to a first node and a second node from the coupling end; and by the positive control unit and the negative control unit, respectively according to a positive control signal and a negative control signal, selectively activating or deactivating the positive switch unit and the negative switch unit to control transmission of the analog data to an output end, wherein the output end is coupled between the negative switch unit and the positive switch unit.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: Raydium Semiconductor Corporation
    Inventors: Yu-Lung Lo, Kuan-Hung Chou, Chih-Hsien Jen
  • ELECTRODE UNIT WITH PERIMETER-LENGTHENED TOUCH-SENSING PATTERN FOR TOUCH-SENSING ELEMENT LOCATED AT FRINGES OF TOUCH PANEL
    Publication number: 20130241851
    Abstract: An electrode unit on a touch-sensing element includes a first electrode, a second electrode, and a plurality of fifth conductive elements. The first electrode includes a first conductive element and a plurality of second conductive elements. The first conductive element has a plurality of first funnel-shaped notches. The plurality of second conductive elements extends from the first conductive element. The second electrode includes a third conductive element and a plurality of fourth conductive elements. The third conductive element has a plurality of second funnel-shaped notches. The plurality of fourth conductive elements extends from the third conductive element. The plurality of fifth conductive elements extends from the third conductive element.
    Type: Application
    Filed: January 21, 2013
    Publication date: September 19, 2013
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventors: Sheng-Fu Wang, Kun-Pei Lee
  • LEVEL SHIFT CIRCUIT
    Publication number: 20130241623
    Abstract: A level shift circuit includes a first input terminal, a second input terminal, a first output terminal, a second output terminal, a latch-type level shifter, a first current source and a second current source. The first input terminal receives an input signal; the second input terminal receives an inverse signal of the input signal; the first output terminal outputs an output signal; and the second output terminal outputs an inverse signal of the output signal. The latch-type level shifter is connected to the first input terminal, the second input terminal, the first output terminal and the second output terminal. The first current source is connected between a first high voltage input terminal of the latch-type level shifter and a voltage source. The second current source is connected between a second high voltage input terminal of the latch-type level shifter and the voltage source.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventors: YU CHUN LIN, HUI WEN MIAO
  • ELECTRODE UNIT WITH PERIMETER-LENGTHENED TOUCH-SENSING PATTERN FOR TOUCH-SENSING ELEMENT LOCATED AT FRINGES OF TOUCH PANEL
    Publication number: 20130240342
    Abstract: An electrode unit on a touch-sensing element includes a first electrode and a second electrode. The first electrode includes a first conductive element; and a plurality of second conductive elements extending from the first conductive element in directions in parallel with a first direction within a specific range. The second electrode includes a third conductive element and a plurality of fourth conductive elements extending from the third conductive element in directions in parallel with a second direction within a specific range.
    Type: Application
    Filed: January 21, 2013
    Publication date: September 19, 2013
    Applicant: Raydium Semiconductor Corporation
    Inventor: Sheng-Fu Wang
  • DRIVING CIRCUIT AND DATA TRANSMITTING METHOD THEREOF
    Publication number: 20130241904
    Abstract: A driving circuit and a data transmitting data method thereof are disclosed. The data transmitting method includes: according to an input control signal, selectively transmitting a plurality digital data to a plurality of channels, wherein the channels include a first channel and a second channel, and the first channel and the second channel respectively have a negative conversion unit and a positive conversion unit; by means of the negative conversion unit or the positive conversion unit converting the digital data into a plurality of negative analog data or a plurality of positive analog data; and according to a switching control signal, by means of a switching unit selectively switching the negative analog data or the positive analog data from its corresponding channel to another channel.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: Raydium Semiconductor Corporation
    Inventors: Yu-Lung Lo, Kuan-Hung Chou, Chih-Hsien Jen
  • SOURCE DRIVER
    Publication number: 20130235007
    Abstract: A source driver applied in a liquid crystal display is disclosed. The source driver at least includes a first pair of channels, a second pair of channels, two P-type digital/analog converting modules, two N-type digital/analog converting modules, two multiplexers, two polarization multiplexers, and four amplifying and buffer modules. The first pair of channels includes a first channel and a second channel which are adjacent, and the second pair of channels includes a third channel and a four channel which are adjacent. The two P-type digital/analog converting modules correspond to a first set of gamma values, and the two N-type digital/analog converting modules correspond to a second set of gamma values. The first pair of channels shares the two P-type digital/analog converting modules and the second pair of channels shares the two N-type digital/analog converting modules to save the used chip area.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 12, 2013
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventor: Yu-Jen Yen
  • Apparatus and method for generating chopper-stabilized signals
    Patent number: 8520034
    Abstract: A method for generating chopper-stabilized signals includes the following steps. First, a voltage polarity control signal is received. Next, the voltage polarity control signal is sampled to obtain a sampling signal, and a voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal is judged according to the sampling signal. Then, a frame transformation signal template is obtained according to the voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal and the sampling signal. Next, the frame transformation signal template is compared with the sampling signal and a frame transformation signal is generated. Then, a first chopper-stabilized signal is outputted according to the frame transformation signal and the voltage polarity control signal.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: August 27, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventor: Yong-Nien Rao
  • Die structure and die connecting method
    Patent number: 8518743
    Abstract: A die structure and a die connecting method using the same are provided. The die structure includes a die and a bump structure. The bump structure includes a body and a solder layer. The body is disposed on the die. The solder layer is disposed on the body. The method includes providing a die structure mentioned above, providing a circuit board mentioned above, and soldering the solder layer of the die structure with the tine layer on the copper block of the circuit board. In different embodiments, a tin layer is omitted from the circuit board, wherein the solder layer of the die structure is directly soldered onto the surface of the copper block.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: August 27, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventors: Chia-Hung Hsu, Ching-San Lin, Chin-Yung Chen