Patent ID: 9520558
Filing Date: 2016-12-13
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor structure, comprising: forming a structure having at least one opening defined by sidewalls of a dielectric material, comprising: forming the dielectric material over a conductive structure overlying an electrode; and defining the at least one opening in the dielectric material; forming at least one of a chalcogenide material or an oxide material in contact with the conductive structure; forming a conductive material comprising silver over the at least one of the chalcogenide material or the oxide material and over surfaces of the structure having the at least one opening; forming another conductive material over the conductive material; and performing a polishing process to substantially redistribute at least one of the conductive material or the another conductive material into an unfilled region of the at least one opening to form another conductive structure overlying the at least one of the chalcogenide material or the oxide material, the semiconductor structure comprising: the conductive structure overlying the electrode; the dielectric material overlying the electrode; at least one of the chalcogenide material or the oxide material in contact with the conductive structure; and the another conductive structure overlying the at least one of the chalcogenide material or the oxide material, an upper surface of the another conductive structure being coplanar with an upper surface of the dielectric material, the another conductive structure comprising: at least one region comprising the silver in contact with the at least one of the chalcogenide material or the oxide material; and at least one other region comprising the another conductive material above the at least one region comprising the silver, a majority of or substantially all of the another conductive material being spaced from the at least one of the chalcogenide material or the oxide material by the conductive material comprising the silver, the another conductive material comprising at least one of platinum, tantalum, aluminum, lead, copper, iridium, titanium, nickel, cobalt, ruthenium, or rhodium.