公开(公告)号：US10062699B1

公开(公告)日：2018-08-28

申请号：US15648770

申请日：2017-07-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Keun Kim ,  Jung Joon Pyeon ,  Cheol Jin Cho ,  Sangtae Kim ,  Doo Seok Jeong ,  Seung-Hyub Baek ,  Chong-Yun Kang ,  Ji-Won Choi ,  Jin-Sang Kim

IPC: H01L27/108 ,  H01L49/02 ,  H01L21/285 ,  H01L21/02

Abstract: A capacitor for a semiconductor memory element includes a lower electrode, a dielectric layer disposed on the lower electrode and including titanium oxide, and an upper electrode disposed on the dielectric layer. The lower electrode includes a first metal and a second metal, the first metal including at least one selected from the group consisting of platinum (Pt), osmium (Os), rhodium (Rh) and palladium (Pd), the second metal including at least one selected from the group consisting of ruthenium (Ru) and iridium (Jr).

公开(公告)号：US10886450B2

公开(公告)日：2021-01-05

申请号：US15996706

申请日：2018-06-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin-Sang Kim ,  Chong-Min Koo ,  Seung-Hyub Baek ,  Seong-Keun Kim ,  Chong-Yun Kang ,  Soon-Man Hong ,  Seung-Sang Hwang ,  Ji-Won Choi ,  Seok-Jin Yoon ,  Kwang-Chon Kim ,  Kyung-Youl Baek ,  Sang-Ho Cho

IPC: H01L35/24 ,  H01L35/16 ,  C04B35/547 ,  C04B35/628 ,  H01L35/18 ,  C04B35/58 ,  C04B35/626 ,  C04B35/01 ,  C04B35/645 ,  H01L35/22 ,  C04B35/56

Abstract: Disclosed is a thermoelectric composite material includes a thermoelectric material including crystal grains; and a MXene inserted at boundaries of the crystal grains consisting of the thermoelectric material. Accordingly, the thermoelectric composite material may have a reduced thermal conductivity and an increased electrical conductivity. Furthermore, mechanical properties of the thermoelectric composite material may be improved. Thus, the thermoelectric composite material may improve the thermoelectric ability of a thermoelectric module including the same. A method of manufacturing the thermoelectric composite material includes coating MXene on a surface of a thermoelectric material powder including crystal grains; and sintering the thermoelectric material powder coated with the MXene to form a sintered body including the MXene inserted at boundaries of the crystal grains consisting of the thermoelectric material.

公开(公告)号：US10529905B2

公开(公告)日：2020-01-07

申请号：US15609057

申请日：2017-05-31

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin-Sang Kim ,  Seung-Hyub Baek ,  Seong-Keun Kim ,  Dow-Bin Hyun ,  Beomjin Kwon ,  Ji-Won Choi ,  Chong-Yun Kang ,  Im-Jun Roh

IPC: H05B3/00 ,  H01L35/34 ,  H01L35/16 ,  B28B3/20 ,  B28B11/16 ,  B28B11/24 ,  B28B17/00

Abstract: A method for manufacturing a thermoelectric material is provided. According to the method, a first shaped body is formed from a thermoelectric powder, of which a crystal has a layer structure. An extruded body is formed by extruding the first shaped body. A plurality of cut-off pieces are formed by cutting the extruded body along a cross-section perpendicular to an extrusion direction. A second shaped body is formed by stacking and pressing the cut-off pieces along a direction perpendicular to the extrusion direction. According to the above, a thermoelectric ability of a thermoelectric material and an efficiency for manufacturing a thermoelectric module may be improved.