75 patents
Utility
Mask layout, semiconductor device and manufacturing method using the same
28 Nov 23
A mask layout for forming a semiconductor device includes an active mask pattern, a gate electrode mask pattern, a silicide blocking mask pattern, and a contact mask pattern.
Guk Hwan Kim
Filed: 19 Apr 21
Utility
Source Driver of Display Panel
21 Sep 23
A source driver for a display panel includes an output buffer configured to output a signal to a data line of the display panel; an output controller configured to control an output of the output buffer; a load resistance measuring unit configured to measure a load resistance of at least one data line of the display panel; and a comparison unit configured to compare the load resistance measured in the load resistance measuring unit with an initial load resistance, wherein the output controller is further configured to control a signal to be output by the output buffer based on the comparison result.
Jonghyun KIM
Filed: 16 Feb 23
Utility
Wafer Level Chip Scale Package of Power Semiconductor and Manufacutring Method Thereof
21 Sep 23
A wafer level chip scale package includes a semiconductor substrate having a first thickness, an input-output pad formed on the semiconductor substrate, a front metal layer having a second thickness formed on the input-output pad, a back metal layer having a third thickness formed on a bottom of the semiconductor substrate, and a metal bump formed on the semiconductor substrate.
Myungho PARK, Heejin Park, Beomsu KIM
Filed: 19 Sep 22
Utility
Power Factor Correction Circuit
21 Sep 23
A power factor correction circuit includes an inductor configured to receive an input voltage and supply an output voltage; a power switch connected to the inductor and configured to control an input current flowing through the inductor; and a switch controller configured to receive a feedback voltage including information on the output voltage and an auxiliary voltage including information on a voltage of the inductor and control an on/off operation of the power switch.
Zhiyuan CUI, Jonghyun KIM, Byungki KIM, Tianzhao GAO, Chunyan ZHANG, Quan LIU
Filed: 26 Oct 22
Utility
Spread Spectrum Clock Generation Device
7 Sep 23
A spread spectrum clock generation device that may reduce electromagnetic interference (EMI) includes: a first comparator configured to compare an input signal with a first reference voltage and output a first comparison signal; a second comparator configured to compare the input signal with a second reference voltage and output a second comparison signal; a latch configured to receive the first and second comparison signals as inputs and output an output signal; and a delaying circuit configured to generate the input signal by delaying the output signal to have a different delay time for each time interval.
Chelho CHUNG, Gilsung ROH
Filed: 18 Oct 22
Utility
Current generating circuit and oscillator using current generating circuit
5 Sep 23
A current generating circuit includes a current generator configured to supply a reference current, switches connected to the current generator, wherein one switch of the switches is selected and configured to operate, according to a switch selection signal, and one or more resistors, respectively connected to the switches, wherein a rate of current change according to a temperature change of the current generator is adjusted based on a temperature coefficient of resistance (TCR) of resistors connected to the one switch, according to adjustment of the one switch.
Jin Seop Noh, Hyoung Kyu Kim
Filed: 12 Apr 21
Utility
Switch control circuit and switch control method thereof
15 Aug 23
A switch control circuit and a switch control method are provided.
Jang Hyuck Lee, Joo Han Yoon, Byoung Kwon An
Filed: 27 Apr 22
Utility
Slew Rate Adjusting Circuit for Adjusting Slew Rate, Buffer Circuit Including Same, and Slew Rate Adjusting Method
13 Jul 23
A slew rate adjusting circuit includes an adjustment transistor configured to provide an adjustment current into an output port of an arithmetic amplifier, a first transistor connected between a power line of the arithmetic amplifier and the adjustment transistor, and a second transistor connected between the first transistor and an output node of the output port, wherein the adjustment transistor is turned on by the second transistor in response to a difference between an input voltage and an output voltage being equal to or greater than a reference voltage, and the adjustment current is provided to the output port in response to the adjustment transistor being turned on.
Jung Hoon SUL, Dong Il SEO
Filed: 22 Mar 23
Utility
Low Voltage Drop Output Regulator for Preventing Inrush Current and Method for Controlling Thereof
6 Jul 23
A low voltage drop output regulator and a method for controlling thereof for preventing an inrush current that occurs momentarily during an initial operation of a circuit are described.
Gilsung ROH
Filed: 9 Aug 22
Utility
Chip solution device for driving display panel comprising display driving integrated circuit (IC) and display control IC
30 May 23
A device for driving a display panel includes a display driving integrated circuit (IC) configured to transmit image data to the display panel, a display control IC configured to receive compressed image data from a host and including a timing controller configured to control the display driving IC, and a non-volatile memory configured to transmit data to and receive data from the display control IC, and configured to store driving parameters necessary for operation of the display driving IC.
Jin Seok Yang, Jung Hoon Sul, Sang Kyung Kim, Dae Young Yoo, Jae Won Kim
Filed: 28 Apr 20
Utility
Slew rate adjusting circuit for adjusting slew rate, buffer circuit including same, and slew rate adjusting method
2 May 23
A slew rate adjusting circuit includes an adjustment transistor configured to provide an adjustment current into an output port of an arithmetic amplifier, a first transistor connected between a power line of the arithmetic amplifier and the adjustment transistor, and a second transistor connected between the first transistor and an output node of the output port, wherein the adjustment transistor is turned on by the second transistor in response to a difference between an input voltage and an output voltage being equal to or greater than a reference voltage, and the adjustment current is provided to the output port in response to the adjustment transistor being turned on.
Jung Hoon Sul, Dong Il Seo
Filed: 26 Mar 20
Utility
Switch Control Circuit and Switch Control Method Thereof
13 Apr 23
A switch control circuit and switch control method are provided.
Jang Hyuck LEE, Joo Han YOON
Filed: 17 Jun 22
Utility
Static random-access memory (SRAM) fault handling apparatus and SRAM fault handling method
7 Mar 23
A fault handling apparatus and a fault handling method which perform a built-in self-test (BIST) and a repair on a static random-access memory (SRAM) cell, and the fault handling apparatus and the fault handling method store the fault and repair history information of a previous SRAM test, provide the information to a current test, and reflect both BIST results and the information on the previous test, thereby performing multiple repairs until there is no available spare SRAM.
Sangsu Park
Filed: 31 Dec 21
Utility
Switch Control Circuit and Switch Control Method Thereof
19 Jan 23
A switch control circuit and a switch control method are provided.
Jang Hyuck LEE, Joo Han YOON, Byoung Kwon AN
Filed: 27 Apr 22
Utility
Current mode logic driver and transmission driver including the same
10 Jan 23
A transmission driver includes a pulse generator and a current mode logic driver.
Gil Sung Roh, Sang Kyung Kim
Filed: 17 May 21
Utility
Mask Layout, Semiconductor Device and Manufacturing Method Using the Same
5 Jan 23
A mask layout for forming a semiconductor device includes an active mask pattern, a gate electrode mask pattern, a silicide blocking mask pattern, and a contact mask pattern.
Guk Hwan KIM
Filed: 9 Sep 22
Utility
Semiconductor Device and Manufacturing Method of Semiconductor Device
5 Jan 23
A semiconductor device includes a source region, a drain region, and a gate insulating film formed on a substrate, a gate electrode formed on the gate insulating film, a first insulating film pattern formed to extend from the source region to a part of a top surface of the gate electrode, and a spacer formed on a side surface of the gate electrode in a direction of the drain region.
Guk Hwan KIM
Filed: 8 Sep 22
Utility
Method for improving slew rate of amplifier circuit and display device using the same
29 Nov 22
A device for increasing a slew rate of a driving amplifier includes a driving amplifier, a slew rate improvement circuit, and a controller.
Dong Ho Kim, Chel Ho Chung, Hee Jung Kim, Hyeong Sik Choi
Filed: 21 Jul 21
Utility
Panel control circuit and display device including panel control circuit
8 Nov 22
A panel control circuit for controlling a display panel comprising a first data line and a second data line includes a timing controller configured to generate input data comprising a first input data and a second input data, a first driving circuit configured to output a first video signal corresponding to the first input data into the first data line, and a second driving circuit configured to output a second video signal corresponding to the second input data into the second data line, wherein the timing controller is configured to turn off the second driving circuit based on a first deviation, a second deviation, or a third deviation.
Duk Min Lee
Filed: 19 Jan 21
Utility
Switching driving circuit and driving method of switching driving circuit
1 Nov 22
A switching driving circuit includes a switch configured to switch a current supplied to a target circuit, a sensing resistor connected to the switch, a controller configured to control the switch by comparing a sensing voltage applied to the sensing resistor with a reference voltage, and a compensation circuit configured to regulate the reference voltage based on an amount of variation of an input voltage input into the target circuit and an output voltage output from the target circuit.
Jang Hyuck Lee, Joo Han Yoon, Byoung Kwon An
Filed: 15 Apr 20