Patent ID: 8911827

Claim:
A chemical vapor deposition method for forming a platinum thin film or a platinum compound thin film, comprising the steps of vaporizing an organoplatinum compound to be a raw material compound to prepare a reaction gas, introducing the resulting reaction gas onto the surface of a substrate, and decomposing the organoplatinum compound to deposit platinum, wherein said method uses, as the organoplatinum compound, the organoplatinum compound, which is represented by the following formula and includes a divalent platinum atom, and hexadiene or a hexadiene derivative and alkyl anions coordinated to the divalent platinum atom, and decomposes the organoplatinum compound wherein at least either of the substituents R 1 and R 2 is any one of a methyl group, an ethyl group and a propyl group; R 1 and R 2 may be different from each other; R 3 and R 4 are each a hydrogen atom or an alkyl group; and R 3 and R 4 may be different from each other.