Patents by Inventor I-Jung WANG
I-Jung WANG 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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Patent number: 12033682Abstract: An in-plane magnetized spin-orbit magnetic device is provided. The in-plane magnetized spin-orbit magnetic device includes a heavy metal layer, an antiferromagnetic layer, and a magnetic tunnel junction. The antiferromagnetic layer is disposed on the heavy metal layer, and the magnetic tunnel junction is disposed on the antiferromagnetic layer. The magnetic tunnel junction includes a free layer, a barrier layer, and a pinned layer. The barrier layer is disposed on the free layer, and the pinned layer is disposed on the barrier layer. A film surface shape of the free layer is a rounded rectangle.Type: GrantFiled: December 28, 2021Date of Patent: July 9, 2024Assignee: Industrial Technology Research InstituteInventors: Hsin-Han Lee, Jeng-Hua Wei, I-Jung Wang, Shan-Yi Yang, Yao-Jen Chang, Fang-Ming Chen
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Patent number: 11844288Abstract: An in-plane magnetized spin-orbit magnetic device is provided. The in-plane magnetized spin-orbit magnetic device includes a heavy metal layer, an upper electrode and a magnetic tunnel junction. The magnetic tunnel junction is disposed between the heavy metal layer and the upper electrode. The magnetic tunnel junction includes a free layer and a pinned layer. The free layer is disposed on the heavy metal layer, and the free layer has a first film plane area. The pinned layer is disposed on the free layer, and the pinned layer has a second film plane area. There is a preset angle between a long axis direction of a film plane shape of the free layer and a long axis direction of a film plane shape of the pinned layer, and the first film plane area is larger than the second film plane area.Type: GrantFiled: February 4, 2021Date of Patent: December 12, 2023Assignee: Industrial Technology Research InstituteInventors: Hsin-Han Lee, Jeng-Hua Wei, I-Jung Wang, Shan-Yi Yang, Yao-Jen Chang
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Patent number: 11758821Abstract: A magnetic memory structure includes a heavy-metal layer, a plurality of magnetic tunneling junction (MTJ) layer, a conductive layer and an insulation layer. In an example, the pinned-layer of the MTJ layers are arranged in a string form and disposed over the barrier-layer. In an example also disclosed, the pinned-layer, the free-layer of the MTJ layers are arranged in a string form. Whereas the pinned-layers are disposed over the barrier-layer and the free-layers are disposed over the heavy-metal layer. The conductive layer is formed under the heavy-metal layer and includes a first conductive portion and a second conductive portion separated from each other and connected with two end of the heavy-metal layer respectively. The insulation layer fills up an interval between the first conductive portion and the second conductive portion. The conductive layer has an electric conductivity higher than that of the heavy-metal layer.Type: GrantFiled: December 8, 2021Date of Patent: September 12, 2023Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ziaur Rahaman Shakh, I-Jung Wang, Jeng-Hua Wei
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Publication number: 20230178130Abstract: An in-plane magnetized spin-orbit magnetic device is provided. The in-plane magnetized spin-orbit magnetic device includes a heavy metal layer, an antiferromagnetic layer, and a magnetic tunnel junction. The antiferromagnetic layer is disposed on the heavy metal layer, and the magnetic tunnel junction is disposed on the antiferromagnetic layer. The magnetic tunnel junction includes a free layer, a barrier layer, and a pinned layer. The barrier layer is disposed on the free layer, and the pinned layer is disposed on the barrier layer. A film surface shape of the free layer is a rounded rectangle.Type: ApplicationFiled: December 28, 2021Publication date: June 8, 2023Applicant: Industrial Technology Research InstituteInventors: Hsin-Han Lee, Jeng-Hua Wei, I-Jung Wang, Shan-Yi Yang, Yao-Jen Chang, Fang-Ming Chen
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Publication number: 20220109100Abstract: An in-plane magnetized spin-orbit magnetic device is provided. The in-plane magnetized spin-orbit magnetic device includes a heavy metal layer, an upper electrode and a magnetic tunnel junction. The magnetic tunnel junction is disposed between the heavy metal layer and the upper electrode. The magnetic tunnel junction includes a free layer and a pinned layer. The free layer is disposed on the heavy metal layer, and the free layer has a first film plane area. The pinned layer is disposed on the free layer, and the pinned layer has a second film plane area. There is a preset angle between a long axis direction of a film plane shape of the free layer and a long axis direction of a film plane shape of the pinned layer, and the first film plane area is larger than the second film plane area.Type: ApplicationFiled: February 4, 2021Publication date: April 7, 2022Applicant: Industrial Technology Research InstituteInventors: Hsin-Han Lee, Jeng-Hua Wei, I-Jung Wang, Shan-Yi Yang, Yao-Jen Chang
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Publication number: 20220102623Abstract: A magnetic memory structure includes a heavy-metal layer, a plurality of magnetic tunneling junction (MTJ) layer, a conductive layer and an insulation layer. In an example, the pinned-layer of the MTJ layers are arranged in a string form and disposed over the barrier-layer. In an example also disclosed, the pinned-layer, the free-layer of the MTJ layers are arranged in a string form. Whereas the pinned-layers are disposed over the barrier-layer and the free-layers are disposed over the heavy-metal layer. The conductive layer is formed under the heavy-metal layer and includes a first conductive portion and a second conductive portion separated from each other and connected with two end of the heavy-metal layer respectively. The insulation layer fills up an interval between the first conductive portion and the second conductive portion. The conductive layer has an electric conductivity higher than that of the heavy-metal layer.Type: ApplicationFiled: December 8, 2021Publication date: March 31, 2022Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ziaur Rahaman Shakh, I-Jung Wang, Jeng-Hua Wei
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Patent number: 11227990Abstract: A magnetic memory structure is provided. The magnetic memory structure includes a magnetic tunneling junction (MTJ) layer and a heavy-metal layer. The MTJ layer includes a pinned-layer, a barrier-layer formed under the pinned-layer and a free-layer formed under the barrier-layer. The heavy-metal layer is formed under the free-layer. The barrier-layer has a first upper surface, the pinned-layer has a lower surface, and area of the first upper surface is larger than area of the lower surface.Type: GrantFiled: July 17, 2019Date of Patent: January 18, 2022Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ziaur Rahaman Shakh, I-Jung Wang, Jeng-Hua Wei
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Publication number: 20210020827Abstract: A magnetic memory structure is provided. The magnetic memory structure includes a magnetic tunneling junction (MTJ) layer and a heavy-metal layer. The MTJ layer includes a pinned-layer, a barrier-layer formed under the pinned-layer and a free-layer formed under the barrier-layer. The heavy-metal layer is formed under the free-layer. The barrier-layer has a first upper surface, the pinned-layer has a lower surface, and area of the first upper surface is larger than area of the lower surface.Type: ApplicationFiled: July 17, 2019Publication date: January 21, 2021Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ziaur Rahaman Shakh, I-Jung Wang, Jeng-Hua Wei
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Patent number: 10784441Abstract: A perpendicularly magnetized spin-orbit magnetic device including a heavy metal layer, a magnetic tunnel junction, a first antiferromagnetic layer, a first block layer and a first stray field applying layer is provided. The magnetic tunnel junction is disposed on the heavy metal layer. The first block layer is disposed between the magnetic tunnel junction and the first antiferromagnetic layer. The first stray field applying layer is disposed between the first antiferromagnetic layer and the first block layer. The magnetic tunnel junction comprises a free layer, a tunneling barrier layer, and pinned layer. The tunneling barrier layer is disposed on the free layer. The pinned layer is disposed on the tunneling barrier layer. A film plane area of the free layer is greater than a film plane area of the tunneling barrier layer and a film plane area of the pinned layer.Type: GrantFiled: October 28, 2019Date of Patent: September 22, 2020Assignee: Industrial Technology Research InstituteInventors: Hsin-Han Lee, Shan-Yi Yang, Yao-Jen Chang, I-Jung Wang, Jeng-Hua Wei
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Publication number: 20200058847Abstract: A perpendicularly magnetized spin-orbit magnetic device including a heavy metal layer, a magnetic tunnel junction, a first antiferromagnetic layer, a first block layer and a first stray field applying layer is provided. The magnetic tunnel junction is disposed on the heavy metal layer. The first block layer is disposed between the magnetic tunnel junction and the first antiferromagnetic layer. The first stray field applying layer is disposed between the first antiferromagnetic layer and the first block layer. The magnetic tunnel junction comprises a free layer, a tunneling barrier layer, and pinned layer. The tunneling barrier layer is disposed on the free layer. The pinned layer is disposed on the tunneling barrier layer. A film plane area of the free layer is greater than a film plane area of the tunneling barrier layer and a film plane area of the pinned layer.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Applicant: Industrial Technology Research InstituteInventors: Hsin-Han Lee, Shan-Yi Yang, Yao-Jen Chang, I-Jung Wang, Jeng-Hua Wei
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Patent number: 10546622Abstract: A spin-orbit torque MRAM is provided. The spin-orbit torque MRAM includes a spin Hall metal layer, a free magnetic layer disposed on the spin Hall metal layer, a barrier layer, and a pinned layer. The free magnetic layer includes a first area and a second area located on both sides thereof. The barrier layer includes a first area and a second area located on both sides thereof. The first area of the barrier layer is disposed on that of the free magnetic layer, and the second area of the barrier layer is disposed on that of the free magnetic layer. The pinned layer is disposed on the first area of the barrier layer.Type: GrantFiled: August 3, 2018Date of Patent: January 28, 2020Assignee: Industrial Technology Research InstituteInventors: Yu-Sheng Chen, I-Jung Wang
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Publication number: 20190164586Abstract: A spin-orbit torque MRAM is provided. The spin-orbit torque MRAM includes a spin Hall metal layer, a free magnetic layer disposed on the spin Hall metal layer, a barrier layer, and a pinned layer. The free magnetic layer includes a first area and a second area located on both sides thereof. The barrier layer includes a first area and a second area located on both sides thereof. The first area of the barrier layer is disposed on that of the free magnetic layer, and the second area of the barrier layer is disposed on that of the free magnetic layer. The pinned layer is disposed on the first area of the barrier layer.Type: ApplicationFiled: August 3, 2018Publication date: May 30, 2019Inventors: Yu-Sheng CHEN, I-Jung WANG