Patent ID: 6534869
Filing Date: 2003-03-18
Classification: H01L

Abstract:
A semiconductor chip, comprising:a semiconductor substrate; at least one predetermined pattern of aluminum (Al) lines supported by the substrate, the lines having a reduced void-content, adjacent lines being separated by distances equal to or less than about three-eighths of a micron, at least one line of the pattern comprising a stack, the stack comprising at least one first type layer comprising aluminum (Al), and at least one second type layer comprising titanium (Ti); and at least one intermetallic layer sandwiched between the at least one first type layer and the at least one second type layer, the intermetallic layer comprising a titanium aluminide (TiAl3) compound, the TiAl3 compound being reacted prior to insulating the lines from each other, said at least one first type layer comprising a metal additive, and said metal additive comprising at least one metal selected from a group consisting essentially of nickel (Ni), zinc (Zn), indium (In), chromium (Cr), and platinum (Pt).