Patent ID: 6337148
Filing Date: 2002-01-08
Classification: C07F,C23C,H01L,Y10S,Y10T

Abstract:
A copper source reagent composition, comprising at least one copper precursor selected from the group consisting of:(a) copper complexes of the formula: â€ƒwherein Râ€², Râ€³, are the same or different and are independently selected from the group consisting of C1-C8 acyclic alkyl, aryl, fluoroaryl, C1-C8 fluoroalkyl, or C3-C6 cycloalkyl, and C3-C6 cycloalkyl, and C3-C6 fluorocycloalkyl; and L is an organic neutral Lewis base ligand, selected from the group consisting of (i) alkenes, (ii) alkynes, (iii) silicon containing ligands , and (iv) sulfur, oxygen and/or nitrogen-containing organic ligands; with the provisos that when Râ€² and Râ€³ are both CF3, L is not 1,5-cyclooctadiene (COD), dimethyl-1,5-cyclooctadiene (DMCOD), vinyltrimethylsilane (VTMS) 2-butyne, 2-pentyne, 2-methyl-1-hexen-3-yne (MHY), or 3-hexyne; and when at least one of Râ€² or Râ€³ is CF3 L is not 1,5-cyclooctadiene (COD), vinyltrimethylsilane (VTMS), 2-butyne or 2-pentyne; and (b) copper complexes of the formula: â€ƒwherein R1, R2, R3, R4 and R5 may be the same or different and are independently selected from the group consisting of H, aryl, fluoroaryl, C1-C8 acyclic alkyl, C1-C8 fluoroalkyl, or C3-C6 cycloalkyl, and n is 0, 1, 2, or 3.