Nof Corporation

Osaka University

Tokyo Institute of Technology

Tohoku Techno Arch Co., Ltd.

Institute of Science Tokyo

Tomoyuki Ohtake

Eui-chul Kang

Kazushi Kinbara

Tomoki Uruga

Katsuaki Suganuma

Masaya Nogi

Ryutaro Imamura

Natsuki Komoda

Takahiro Muraoka

Adam Marcin Wawro

A branched type hetero monodispersed polyethylene glycol represented by formula (1) where X, Y, n, E, L, Land Lare as defined herein.

Branched type hetero monodispersed polyethylene glycol, production method thereof, and conjugate thereof

A hetero type monodispersed polyethylene glycol containing a compound represented by the following formula (1):NH&#x2014;(CHCHO)&#x2014;CHCHCOOH&#x2003;&#x2003;(1)

Hetero type monodispersed polyethylene glycol, intermediate for production of hetero type monodispersed polyethylene glycol, methods for producing same, and hetero type monodispersed polyethylene glycol conjugate

A composition for copper patterning and a method of copper patterning using the composition are provided, which composition is excellently safe in copper patterning, sintering at lower temperatures, and capable of forming a highly conducive copper pattern of a desired shape even on a plastic substrate. The composition contains Component A: a copper &#x3b2;-ketocarboxylate compound of formula (1): (R1, R2: H or C1-C6 straight- or C3-C6 branched-hydrocarbon group, etc.); and based on 1 mol of this compound, Component B: an amine compound having a boiling point of not higher than 250&#xb0; C. at 0.1 to 500 mol; and Component C-1: an organic acid having pKa of not more than 4 at 0.01 to 20 mol, and/or Component C-2: an organic copper compound composed of copper and an organic acid having pKa of not more than 4 at 0.01 to 100 mol. The composition is useful in the field of electronics.

Composition for forming copper pattern and method for forming copper pattern

Growing community of inventors

Tsukuba, Japan

Tomoyuki Ohtake