Sk Biopharmaceuticals Co., Ltd.

Lg Chem, Ltd

Skhynix Inc.

Korea Advanced Institute of Science and Technology

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Korea Institute of Energy Research

Chungbuk National University Industry-academic Cooperation Foundation

Hyun Seok Lee

Dae Won Lee

Sang Chul Lim

Dong Ho Lee

Moo Yong Uhm

Hui Ho Kim

Song Taek Oh

Geun Chang Chung

Jae Woo Lee

Ju Young Lee

Hoe Jin Hah

Sun Kyu Kim

Jung Hwan Park

Doo Yong Lee

Nahm Ryune Cho

Sin Kyu Kim

Ji Hee Ahn

Youn Kyoung Lee

Gun Ko

Su Bon Kim

Seung Gyu Kang

Sun Mo Son

Yun Jin Gu

Joon-Ho Oh

Ka-Hyun Kim

Dong Myoung Lee

Cheong Jun Kim

Seong Pil Byeon

Ji Hye Hwang

Young Gi Jung

Su Hwan Park

Bong Kook Youn

Se Il Lee

Hye Hyun Han

Myeong Jin Kim

Seonho Kong

Se Ii Lee

Disclosed are a method of forming a contact structure, a method of fabricating a semiconductor device, a contact structure, and a semiconductor device including the same. A method of forming a contact structure may comprise forming a porous silicon layer on a substrate by using an epitaxy process, forming a dielectric layer on the porous silicon layer, forming a metal layer on the dielectric layer, forming a silicide member having a three-dimensional structure in the porous silicon layer by diffusing metal atoms of the metal layer into the porous silicon layer through the dielectric layer and reacting the diffused metal atoms with the porous silicon layer in a heat treatment process, removing the metal layer and the dielectric layer, and forming a conductive layer in contact with the silicide member.

Method of forming contact structure, method of fabricating semiconductor device, contact structure and semiconductor device including the same

The present invention relates to a direction-controllable drug injection catheter. According to the present invention, provided is the catheter extending along a central axis 'A' including a drug injection part in which a drug injection channel has been formed; a channel opening and closing means which opens and closes the drug injection channel; and a steering structure which is rotationally asymmetric with respect to the central axis 'A' and varies according to a pressure change of the drug injection channel for the purpose of steering.

Direction-controllable catheter using drug injection channel

Provided are a cathode active material having high capacity and excellent lifetime characteristics as well as being inexpensive by mixing transition metal oxide having high irreversible capacity with composite dimensional manganese oxide (CDMO) of the following Chemical Formula 1, which has high capacity and good lifetime characteristics but is difficult to be charged and discharged by being used alone, and a lithium secondary battery including the cathode active material:MnO.(1&#x2212;)LiMnO(0&#x3c;&#x3c;1).&#x2003;&#x2003;[Chemical Formula 1]

High-capacity cathode active material and lithium secondary battery including the same

Disclosed is a method for the preparation of carbamic acid (R)-1-aryl-2-tetrazolyl-ethyl esters, comprising the enantioselective enzyme reduction of a 1-aryl-2-tetrazolyl-ethyl ketone to form a (R)-1-aryl-2-tetrazolyl-ethyl alcohol and the carbamation of said alcohol.

Method for preparation of carbamic acid (R)-1-aryl-2-tetrazolyl-ethyl ester

A high capacity lithium secondary battery includes a lithium manganese oxide having a layered structure exhibiting a great irreversible capacity in the event of overcharging at a high voltage and a spinel-based lithium manganese oxide. Because it is activated at a high voltage of 4.45 V or higher based on a positive electrode potential, additional lithium for utilizing a 3V range of the spinel-based lithium manganese oxide can be provided and an even profile in the entire SOC area can be obtained. Because the lithium secondary battery includes the mixed positive electrode active material including the spinel-based lithium manganese oxide and the lithium manganese oxide having a layered structure, and is charged at a high voltage, its stability can be improved. Also, the high capacity battery having a large available SOC area and improved stability without causing an output shortage due to a rapid voltage drop in the SOC area can be implemented.

Positive electrode active material with high capacity and lithium secondary battery including the same

Disclosed is a method for the preparation of carbamic acid (R)-1-aryl-2-tetrazolyl-ethyl ester, comprising the asymmetric reduction of arylketone and the carbamation of alcohol.

Growing community of inventors

Daejeon, South Korea

Hyun Seok Lee