Samsung Electronics Co., Ltd.

Samyoung Pure Chemicals Co., Ltd.

Hyundai Motor Company

Mitsubishi Gas Chemical Company, Inc.

Yonsei University

Sungwoo Hitech Co., Ltd.

Jeong Ahn Kwon

Dong-Min Kang

Young Soo Kim

Chang Soon Park

Jang Won Lee

Hyo Sun Hwang

Mun Yong Lee

Tomoko Suzuki

Hyungjun Jeon

Jungsik Choi

Sung Yeon Kim

Akira Hosomi

Sang Eon Park

Seunghyun Ahn

Baiksoon Choi

Young Taek Hong

Kyoochul Cho

Ingoo Kang

JungIg Jeon

Inho Choi

Nakseung Jung

Heon Jin Park

Jung-ig Jeon

The present inventive concepts provide a liquid composition for etching a metal containing copper. The liquid composition may include hydrogen peroxide in a range of about 0.1 wt % to about 10 wt % and a buffer solution in a range of about 0.1 wt % to about 10 wt %. The buffer solution may include citrate. The liquid composition may have a pH in a range of about 4.0 to about 7.0.

Liquid compositions and methods of fabricating a semiconductor device using the same

A titanium etchant composition and a method of forming a semiconductor device using the same, the titanium etchant composition including a titanium remover; a corrosion inhibitor; and a deionized water; wherein the corrosion inhibitor includes 5-aminotetrazole.

Titanium etchant composition and method of forming a semiconductor device using the same

Provided are a hub, a relay node, and a node for reconfiguring an active time position of a node in a WBAN. An active time position of the node may be reconfigured based on information associated with an active time position of a candidate relay node that the node desires to use as a relay node.

Hub, relay node, and node for reconfiguring active state position in wireless body area network (WBAN), and communication method thereof

A bumper beam assembly for a vehicle may include a bumper beam having a horizontal support plate, front and rear vertical support plates attached to the horizontal support plate, wherein the rear vertical support plate includes an insertion hole, a partition formed along the horizontal support plate between the front and rear vertical support plates, and a stay, an end portion of which may be inserted into the insertion hole.

Bumper beam assembly for vehicle

Growing community of inventors

Seoul, South Korea

Jeong Ahn Kwon