Patents by Inventor Hye Eun Heo
Hye Eun Heo 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).
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Publication number: 20240161834Abstract: The present technology includes a memory device and a method of operating the same. The memory device includes a string including a first select transistor, memory cells, and a second select transistor connected between a source line and a bit line, and a voltage generator configured to supply a precharge voltage to the source line and selectively apply a turn on voltage or a negative voltage to a first select line connected to a gate of the first select transistor. The voltage generator is configured to apply the precharge voltage to the source line, apply the turn on voltage to the first select line during a first time in which a channel layer of the string is precharged, and apply the negative voltage to the first select line during a second time in which the channel layer of the string is precharged, while precharging the channel layer of the string.Type: ApplicationFiled: May 24, 2023Publication date: May 16, 2024Applicant: SK hynix Inc.Inventors: Hye Eun HEO, Hyun Seung YOO
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Publication number: 20240067668Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.Type: ApplicationFiled: December 29, 2021Publication date: February 29, 2024Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
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Patent number: 11417376Abstract: A semiconductor device includes a memory string coupled between a source line and a bit line and including a plurality of memory cells, a plurality of word lines, a peripheral circuit configured to apply a program voltage to a word line, apply a first pass voltage to a word line coupled to a first memory cell adjacent to the selected memory cell, and apply a second pass voltage to a second memory cell adjacent to the selected memory cell, and control logic configured to control the peripheral circuit so that the first pass voltage has a higher voltage level than the second pass voltage when a program target level of the selected memory cell is lower than a first threshold value, and the first pass voltage has a lower voltage level than the second pass voltage when the program target level is higher than a second threshold value.Type: GrantFiled: January 20, 2021Date of Patent: August 16, 2022Assignee: SK hynix Inc.Inventors: Jong Kyung Park, Ji Hyun Seo, Hye Eun Heo
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Publication number: 20210142835Abstract: A semiconductor device includes a memory string coupled between a source line and a bit line and including a plurality of memory cells, a plurality of word lines, a peripheral circuit configured to apply a program voltage to a word line, apply a first pass voltage to a word line coupled to a first memory cell adjacent to the selected memory cell, and apply a second pass voltage to a second memory cell adjacent to the selected memory cell, and control logic configured to control the peripheral circuit so that the first pass voltage has a higher voltage level than the second pass voltage when a program target level of the selected memory cell is lower than a first threshold value, and the first pass voltage has a lower voltage level than the second pass voltage when the program target level is higher than a second threshold value.Type: ApplicationFiled: January 20, 2021Publication date: May 13, 2021Applicant: SK hynix Inc.Inventors: Jong Kyung PARK, Ji Hyun SEO, Hye Eun HEO
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Patent number: 10930331Abstract: A semiconductor device includes a memory string coupled between a source line and a bit line and including a plurality of memory cells, a plurality of word lines, a peripheral circuit configured to apply a program voltage to a word line, apply a first pass voltage to a word line coupled to a first memory cell adjacent to the selected memory cell, and apply a second pass voltage to a second memory cell adjacent to the selected memory cell, and control logic configured to control the peripheral circuit so that the first pass voltage has a higher voltage level than the second pass voltage when a program target level of the selected memory cell is lower than a first threshold value, and the first pass voltage has a lower voltage level than the second pass voltage when the program target level is higher than a second threshold value.Type: GrantFiled: October 11, 2019Date of Patent: February 23, 2021Assignee: SK hynix Inc.Inventors: Jong Kyung Park, Ji Hyun Seo, Hye Eun Heo
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Publication number: 20200388312Abstract: A semiconductor device includes a memory string coupled between a source line and a bit line and including a plurality of memory cells, a plurality of word lines, a peripheral circuit configured to apply a program voltage to a word line, apply a first pass voltage to a word line coupled to a first memory cell adjacent to the selected memory cell, and apply a second pass voltage to a second memory cell adjacent to the selected memory cell, and control logic configured to control the peripheral circuit so that the first pass voltage has a higher voltage level than the second pass voltage when a program target level of the selected memory cell is lower than a first threshold value, and the first pass voltage has a lower voltage level than the second pass voltage when the program target level is higher than a second threshold value.Type: ApplicationFiled: October 11, 2019Publication date: December 10, 2020Applicant: SK hynix Inc.Inventors: Jong Kyung PARK, Ji Hyun SEO, Hye Eun HEO
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Patent number: 10026489Abstract: The present technique relates to an electronic device, and more particularly, to a semiconductor memory device and an operating method thereof. A semiconductor memory device having improved reliability includes an address decoder applying a program voltage to a selected word line coupled to selected memory cells, among the plurality of memory cells, and a read and write circuit applying a program permission voltage or a program inhibition voltage to bit lines coupled to the selected memory cells, and a control logic controlling the read and write circuit to sequentially apply the program permission voltage and the program inhibition voltage to the bit lines coupled to the selected memory cells when the program voltage is applied.Type: GrantFiled: August 16, 2016Date of Patent: July 17, 2018Assignee: SK hynix Inc.Inventors: Hee Youl Lee, Hye Eun Heo
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Publication number: 20170263327Abstract: The present technique relates to an electronic device, and more particularly, to a semiconductor memory device and an operating method thereof. A semiconductor memory device having improved reliability includes an address decoder applying a program voltage to a selected word line coupled to selected memory cells, among the plurality of memory cells, and a read and write circuit applying a program permission voltage or a program inhibition voltage to bit lines coupled to the selected memory cells, and a control logic controlling the read and write circuit to sequentially apply the program permission voltage and the program inhibition voltage to the bit lines coupled to the selected memory cells when the program voltage is applied.Type: ApplicationFiled: August 16, 2016Publication date: September 14, 2017Inventors: Hee Youl LEE, Hye Eun HEO
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Patent number: 9330766Abstract: A semiconductor device according to an embodiment may include cell strings including a plurality of memory cells coupled between bit lines and a source line and coupled to word lines, a peripheral circuit suitable for programming selected memory cells coupled to a selected word line among the word lines by applying a program voltage to the selected word line, and applying one or more pass voltages to unselected word lines, and a control circuit suitable for controlling the peripheral circuit to temporarily float the unselected word lines while the selected memory cells are programmed.Type: GrantFiled: August 3, 2015Date of Patent: May 3, 2016Assignee: SK Hynix Inc.Inventors: Sung Wook Jung, Hye Eun Heo, Ji Hui Baek, Dong Hun Lee, Tae Hwa Lee
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Patent number: 9281217Abstract: A method of manufacturing a semiconductor memory device includes forming a first attached layer on a substrate, forming a stack layer on the first attached layer, separating the stack layer and the first attached layer from each other, forming vertical holes by performing a first etch process on the stack layer in a direction from bottom to top, removing the first attached layer, attaching the stack layer in which the vertical holes are formed to the substrate, and performing a second etch process so that each of the vertical holes has a uniform width.Type: GrantFiled: May 28, 2015Date of Patent: March 8, 2016Assignee: SK Hynix Inc.Inventors: Sung Wook Jung, Ji Hui Baek, Dong Hun Lee, Tae Hwa Lee, Hye Eun Heo