Samsung Sdi Co., Inc.

Samsung Heavy Industries Co., Ltd.

Seung Yong Han

Jaehyun Kim

Hwansung Cheon

Seungyong Chae

Kyungsoo Moon

Changsoo Woo

Jimin Kim

Ran Namgung

Eunmi Kang

Jae Kwang Eum

Bu Do Kim

A semiconductor photoresist composition includes an organometallic compound represented by Chemical Formula 1, an organic acid having a vapor pressure of less than or equal to about 1.0 mmHg at 25° C., and a pKa of about 3 to about 5, and a solvent. A method of forming photoresist patterns utilizes the composition

Semiconductor photoresist composition and method of forming patterns using the composition

A semiconductor photoresist composition includes an organometallic compound represented by Chemical Formula 1, a photoacid generator (PAG), and a solvent: In Chemical Formula 1, R is a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C2 to C20 aliphatic unsaturated organic group including at least one double bond or triple bond, a substituted or unsubstituted C6 to C30 aryl group, an ethoxy group, a propoxy group, or a combination thereof; and X, Y, and Z are each independently —ORor —OC(═O)R.

A semiconductor photoresist composition and a method of forming patterns utilizing the same are provided. The semiconductor photoresist composition includes a condensed product produced by a condensation reaction between an organotin compound represented by Chemical Formula 1 and at least one organic acid compound selected from a substituted organic acid, an organic acid including at least two acid functional groups, and a substituted or unsubstituted sulfonic acid; and a solvent. Specific details of Chemical Formula 1 are as defined in the specification.

Trailer coupling part

Disclosed is a top bracing for a marine engine. The top bracing comprises a beam part for transmitting vibration load of the engine to a hull structure; a hull connection part for connecting the beam part to the hull structure; and an engine connection part for connecting the engine to the beam part. One of either the hull connection part or the engine connection part includes a pair of pressing plates connected to the beam part and arranged parallel to each other with a predetermined distance therebetween, a pair of friction support brackets fastened to the hull structure or the engine such that they are close to outer surfaces of the pair of pressing plates, respectively, and an elastic member intervened between the pair of pressing plates for damping the vibration load of the engine by adjusting pressing force which is applied by the pair of pressing plates to the pair of friction support brackets.

Top bracing for marine engine

Growing community of inventors

Incheon, South Korea

Seung Yong Han