Patents Assigned to Hynix Semiconductor Inc.
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Patent number: 8994143Abstract: A semiconductor device and a method for manufacturing the same are provided. A barrier film is formed in a device separating structure, and the device separating structure is etched at a predetermined thickness to expose a semiconductor substrate. Then, a SEG film is grown to form an active region whose area is increased. As a result, a current driving power of a transistor located at a cell region and peripheral circuit regions is improved.Type: GrantFiled: July 17, 2012Date of Patent: March 31, 2015Assignee: Hynix Semiconductor Inc.Inventor: Young Bog Kim
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Patent number: 8988961Abstract: An self-refresh control circuit for controlling a self-refresh operation of a memory device includes a self-refresh control logic block configured to control the memory device to perform the self-refresh operation and an initial refresh control block configured to activate the self-refresh control logic block in an initialization period of the memory device.Type: GrantFiled: June 18, 2012Date of Patent: March 24, 2015Assignee: Hynix Semiconductor Inc.Inventor: Jeong-Tae Hwang
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Patent number: 8988126Abstract: An apparatus for controlling a latency in a synchronous semiconductor device. The apparatus includes a first counting block for counting a cycle of a first clock signal to thereby generate a first binary code; a second counting block for counting a cycle of a second clock signal to thereby generate a second binary code. The second clock signal is obtained by delaying the first clock signal by a predetermined delay amount, A code comparison block stores the second binary code in response to a command and compares the first binary code with the second binary code to thereby generate a latency control signal.Type: GrantFiled: August 4, 2005Date of Patent: March 24, 2015Assignee: Hynix Semiconductor, Inc.Inventors: Si-Hong Kim, Sang-Sic Yoon
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Patent number: 8981841Abstract: A semiconductor integrated circuit includes a plurality of semiconductor chips respectively selected in response to a plurality of chip selection signals, and a chip selection signal generator configured to generate the chip selection signals in response to one first control signal for deciding whether to drive the semiconductor chips and at least one second control signal for selecting at least one semiconductor chip from among the semiconductor chips.Type: GrantFiled: September 20, 2011Date of Patent: March 17, 2015Assignee: Hynix Semiconductor Inc.Inventors: Jae-Bum Ko, Jong-Chern Lee, Sang-Jin Byeon
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Patent number: 8976593Abstract: A nonvolatile memory device includes a plurality of global word lines, a voltage pump configured to generate a plurality of voltages, a control unit configured to divide the plurality of global word lines into a first group and a second group in response to an input row address and generate control signals, a first selection unit configured to output at least two different voltages that are to be applied to global word lines of the first group, a second selection unit configured to output a voltage that is to be applied to global word lines of the second group, and a third selection unit configured to apply output voltages of the first selection unit to the global word lines of the first group, and apply an output voltage of the second selection unit to the global word lines of the second group.Type: GrantFiled: April 23, 2012Date of Patent: March 10, 2015Assignee: Hynix Semiconductor Inc.Inventors: Dae-Il Choi, Jin-Su Park, Byoung-Sung Yoo, Jae-Ho Lee
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Patent number: 8976598Abstract: A semiconductor memory device includes a memory block comprising cell strings each of which includes a plurality of memory cells, a current measurement circuit measure a current flowing through a selected bit line coupled to a selected cell string when a data read operation or a program verification operation is performed, and a logic group configured to change a read voltage, a program verification voltage, or a pass voltage in response to the measured current.Type: GrantFiled: December 30, 2010Date of Patent: March 10, 2015Assignee: Hynix Semiconductor Inc.Inventor: Ki Seog Kim
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Patent number: 8970236Abstract: An internal voltage generating circuit is utilized to perform a TDBI (Test During Burn-in) operation for a semiconductor device. The internal voltage generating circuit produces an internal voltage at a high voltage level, as an internal voltage, in not only a standby section but also in an active section in response to a test operation signal activated in a test operation. Accordingly, dropping of the internal voltage in the standby section of the test operation and failure due to open or short circuiting are prevented. As a result, reliability of the semiconductor chip, by preventing the generation of latch-up caused by breakdown of internal circuits, is assured.Type: GrantFiled: June 7, 2011Date of Patent: March 3, 2015Assignee: Hynix Semiconductor Inc.Inventors: kang-Seol Lee, Seok-Cheol Yoon
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Patent number: 8964449Abstract: A semiconductor memory device selects one of a plurality of memory cells as a dummy memory cell. The dummy memory cell is connected to a bit line that is complementary to a bit line connected to a selected memory cell. This technique advantageously compensates capacitance of the bit line. The semiconductor memory device comprises a selected memory cell connected to a first bit line and a first word line, a dummy memory cell connected to a second bit line complementary to the first bit line and a second word line, and a sense amplifier connected to the first and second bit lines and configured to read data stored in the selected memory cell by simultaneously enablement of the first and second word lines.Type: GrantFiled: January 23, 2012Date of Patent: February 24, 2015Assignee: Hynix Semiconductor Inc.Inventors: Tae Sik Yun, Kang Seol Lee
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Patent number: 8958262Abstract: A bank selection circuit includes a command latch unit configured to latch an input command at a time earlier than a rising edge of a clock by a setup time, a command decoder configured to decode a latched command and generate a row operation signal, a bank address latch unit configured to latch an input bank address at a time earlier than the rising edge of the clock by the setup time, a bank address decoder configured to decode a latched bank address and generate a bank selection signal, and a bank selection unit configured to receive the row operation signal and the bank selection signal and transfer the row operation signal to a bank selected by the bank selection signal.Type: GrantFiled: December 21, 2011Date of Patent: February 17, 2015Assignee: Hynix Semiconductor Inc.Inventor: Jeong-Tae Hwang
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Publication number: 20150035578Abstract: An internal voltage compensation circuit is provided which includes a power up signal generator configured to generate a power up signal, a select signal generator configured to compare a level of a first external voltage with a level of a second external voltage to generate first and second select signals, wherein the second select signal is generated in response to the power up signal, and a voltage compensation unit configured to electrically connect an internal voltage to the first external voltage or the second external voltage in response to the first and second select signals.Type: ApplicationFiled: September 12, 2014Publication date: February 5, 2015Applicant: HYNIX SEMICONDUCTOR INC.Inventor: Bong Hwa Jeong
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Patent number: 8947956Abstract: A delay circuit includes a delay unit configured to generate a delayed transfer signal by delaying a transfer signal corresponding to a first signal or a second signal, a distinguishment signal generation unit configured to generate a distinguishment signal which represents to what signal the transfer signal correspond between the first signal and the second signal and a delayed signal generation unit configured to output the delayed transfer signal as a first delayed signal or a second delayed signal in response to the distinguishment signal.Type: GrantFiled: November 22, 2011Date of Patent: February 3, 2015Assignee: Hynix Semiconductor Inc.Inventor: Jeong-Tae Hwang
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Patent number: 8946855Abstract: A semiconductor device and a method for manufacturing the same are disclosed. The semiconductor device includes adjacent storage node contact plugs having different heights, and lower-electrode bowing profiles having different heights, such that a spatial margin between the lower electrodes is assured and a bridge fail is prevented, resulting in improved device operation characteristics. The semiconductor device includes a first storage node contact plug and a second storage node contact plug formed over a semiconductor substrate, wherein the second storage node contact plug is arranged at a height different from that of the first storage node contact plug, and a lower electrode formed over the first storage node contact plug and the second storage node contact plug.Type: GrantFiled: January 5, 2012Date of Patent: February 3, 2015Assignee: Hynix Semiconductor Inc.Inventor: Sang Ho Sohn
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Patent number: 8947959Abstract: A memory device includes a first bank, a second bank, a plurality of interface pads, and a data output unit configured to output compressed data of the first bank through at least one interface pad among the plurality of interface pads and subsequently output compressed data of the second bank through the one interface pad.Type: GrantFiled: August 9, 2011Date of Patent: February 3, 2015Assignee: Hynix Semiconductor Inc.Inventor: Kang-Youl Lee
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Patent number: 8939377Abstract: An RFID device includes an amplification unit, a demodulator, and a modulator. The amplification unit is configured to amplify a level of a radio signal applied through an antenna, and output an amplification signal. The demodulator is configured to generate an operating voltage by rectifying and amplifying the amplification signal, demodulate the operating voltage, and generate a command signal. The modulator is configured to output a response signal, which corresponds to the command signal, to the antenna.Type: GrantFiled: June 2, 2010Date of Patent: January 27, 2015Assignee: Hynix Semiconductor Inc.Inventor: Hee Bok Kang
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Patent number: 8943262Abstract: A non-volatile memory device includes a first bank including a plurality of first page buffers, a second bank including a plurality of second page buffers, and an address counter configured to count a first address and a second address in response to a clock before a first time in a period for performing a read operation and count the first address and the second address in response to a bank address after the first time, wherein data of the first page buffers are sequentially outputted in response to the first address, and data of the second page buffers are sequentially outputted in response to the second address.Type: GrantFiled: December 1, 2011Date of Patent: January 27, 2015Assignee: Hynix Semiconductor Inc.Inventor: Min-Su Kim
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Patent number: 8922251Abstract: A buffer control circuit includes a current supply unit configured to supply current and adjust the current in response to codes, an amplifying buffer configured to operate using the current and output a value obtained by comparing a reference potential and the reference potential, a second buffer configured to buffer an output of the first buffer, and a code generation unit configured to generate the codes in response to an output of the second buffer.Type: GrantFiled: December 21, 2011Date of Patent: December 30, 2014Assignee: Hynix Semiconductor Inc.Inventors: Taek-Sang Song, Dae-Han Kwon
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Patent number: 8922250Abstract: A semiconductor device and a power voltage supply circuit for a test operation of a semiconductor system including the semiconductor device. The semiconductor device receives first and second power supply voltages in a normal operation mode from an external device and receives the first power supply voltage in a test operation mode. The semiconductor device includes a voltage level setting unit configured to set a power connection node at a voltage between a voltage level of a first power supply voltage terminal and a voltage level of a ground voltage terminal according to an operation mode signal, and a voltage driving unit configured to drive a second power supply voltage terminal with the first power supply voltage in the test operation mode, wherein the driving power is controlled according to the voltage level of the power connection node.Type: GrantFiled: November 1, 2011Date of Patent: December 30, 2014Assignee: Hynix Semiconductor Inc.Inventor: Chae-Kyu Jang
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Patent number: 8921189Abstract: A method for fabricating a semiconductor device including a first region and a second region, wherein pattern density of etch target patterns formed in the second region is lower than that of etch target patterns formed in the first region includes providing a substrate including the first region and the second region, forming an etch target layer over the substrate, forming a hard mask layer over the etch target layer, etching the hard mask layer to form a first and a second hard mask pattern in the first and the second regions, respectively, reducing a width of the second hard mask pattern formed in the second region and etching the etch target layer using the first hard mask pattern and the second hard mask pattern having the reduced width as an etch barrier to form the etch target patterns in the first and the second regions.Type: GrantFiled: December 26, 2007Date of Patent: December 30, 2014Assignee: Hynix Semiconductor Inc.Inventors: Jae-Seon Yu, Sang-Rok Oh
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Patent number: 8924679Abstract: A memory device includes a first bank group, a second bank group, where the first and second bank groups are each configured to output multi-bit data in parallel in response to a read command, a data transferor configured to receive the multi-bit data outputted in parallel from the first bank group or the second bank group and output the multi-bit data at a time interval corresponding to an operation mode, first global data buses configured to transfer the multi-bit data outputted from the first bank group to the data transferor, second global data buses configured to transfer the multi-bit data outputted from the second bank group to the data transferor, and a parallel-to-serial converter configured to convert the multi-bit data outputted from the data transferor into serial data according to the operation mode.Type: GrantFiled: August 8, 2011Date of Patent: December 30, 2014Assignee: Hynix Semiconductor Inc.Inventors: Hyoung-Jun Na, Jae-Il Kim
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Patent number: 8917555Abstract: There is disclosed an operating method of a semiconductor device including programming a memory cell by supplying a program voltage to a control gate of the memory cell and a detrap voltage to a well which is formed in a semiconductor substrate, and subsequently removing electrons trapped in a tunnel insulating layer of the memory cell by supplying a voltage lower than the detrap voltage to the control gate while also supplying the detrap voltage to the well before the programmed memory cell is verified.Type: GrantFiled: April 25, 2012Date of Patent: December 23, 2014Assignee: Hynix Semiconductor Inc.Inventor: Yong Mook Baek