Samsung Electronics Co., Ltd.

Woori Fine Chem Co., Ltd.

Junghwan Shin

Ha-Young Kim

Jae-Woo Seo

Sungwe Cho

Keunho Lee

Ki-Man Park

Sung Gi Lee

Gyeong Ha Choi

Dal Seong Kim

Oh Joon Kwon

Provided is a method for manufacturing diisocyanate and an optical lens in which, during the manufacture of diisocyanate from diamine via diamine hydrochloride, use is made of an aqueous hydrochloric acid solution and an organic solvent instead of hydrogen chloride gas and solid-phase triphosgen instead of phosgen gas while reaction conditions are controlled, whereby the diisocyanate of high quality can be manufactured at excellent yield, with the causation of less environmental problems.

Method for manufacturing diisocyanate and optical lens

Disclosed is a semiconductor device including a substrate with first and second regions adjacent to each other in a first direction, and first to third gate electrodes extending from the first region toward the second region. Each of the first and second regions includes a PMOSFET region and an NMOSFET region. The first to third gate electrodes extend in the first direction and are sequentially arranged in a second direction different from the first direction. The first and third gate electrodes are supplied with a first signal. The second gate electrode is supplied with a second signal that is an inverted signal of the first signal. The first gate electrode includes a first gate of the first region and a first gate of the second region. The first gates are aligned and connected with each other in the first direction.

Semiconductor device

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Seoul, South Korea

Junghwan Shin