Inventors:
Reza M. Golzarian - Beaverton OR, US
Robert P. Meagley - Hillsboro OR, US
Seiichi Morimoto - Beaverton OR, US
Mansour Moinpour - San Jose CA, US
Assignee:
Intel Corporation - Santa Clara CA
International Classification:
H01L 21/44
US Classification:
438610, 438597, 438598, 438615, 438643, 438645, 438652, 438653, 438659, 438678, 438679, 438680, 438626, 438627, 438629
Abstract:
A method of forming and a device including an interconnect structure having a unidirectional electrical conductive material is described. The unidirectional conductive material may overlie interconnect materials, and/or may surround interconnect materials, such as by lining the walls and base of a trench and via. The unidirectional conductive material may be configured to conduct electricity in a direction corresponding to a projection to or from a contact point and conductive material overlying the unidirectional conductive material, but have no substantial electrical conductivity in other directions. Moreover, the unidirectional conductive material may be electrically conductive in a direction normal to a surface over which it is formed or in directions along or across a plane, but have no substantial electrical conductivity in other directions. Finally, the unidirectional conductive material may have properties tending to reduce metal diffusion, reduce electron migration, provide adhesion or bonding, and/or act as an etch stop.