摘要:
To provide a ruthenium complex represented by formula (1a), (2), (3), etc., which is useful for producing a ruthenium-containing thin film both under the conditions using an oxidizing gas as the reaction gas and under the conditions using a reducing gas as the reaction gas. [Chem. 1] (wherein R 1a to R 7a , R 8 , R 9 and R 10 to R 18 represents an alkyl group having a carbon number of 1 to 6, etc., and n represents an integer of 0 to 2.)
摘要:
For forming a thin ruthenium film of good quality by CVD method, it is necessary to form the thin film at low temperature. There hence is a desire for a ruthenium compound having a high reactivity to heat. This invention relates to a method of producing a ruthenium-containing film by CVD or the like using, as a raw material, a ruthenium complex mixture containing (2,4-dimethylpentadienyl)(ethylcyclopentadienyl)ruthenium and bis(2,4-dimethylpentadienyl)ruthenium, the amount of the latter compound being 0.1 to 100% by weight based on the weight of (2,4-dimethylpentadienyl)(ethylcyclopentadienyl)ruthenium, and the like.
摘要:
The invention relates to novel titanium complexes which have excellent vaporization characteristics and thermal stability and are useful as raw material in forming titanium-containing thin films by CVD, ALD, or the like; a process for the production of the complexes; titanium-containing thin films formed by using the complexes; and a method for formation of the films. According to the invention, a titanium complex represented by the general formula (1) is produced by reacting a diimine represented by the general formula (2) with metallic lithium and then with a tetrakisamido complex represented by the general formula (3) and a titanium-containing thin film is formed by using the titanium complex as the raw material: [Chemical formula 1] (2) [Chemical formula 2] Ti(NR 5 R 6 ) 4 (3) [Chemical formula 3] (1) wherein R 1 and R 4 are each alkyl of 1 to 6 carbon atoms, or the like; R 2 and R 3 are each independently hydrogen, alkyl of 1 to 3 carbon atoms, or the like; and R 5 and R 6 are each independently alkyl of 1 to 4 carbon atoms, or the like.