公开(公告)号：US20130260529A1

公开(公告)日：2013-10-03

申请号：US13903267

申请日：2013-05-28

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Tsai-Yu Huang ,  Vishwanath Bhat ,  Vassil Antonov ,  Chun-I Hsieh ,  Chris Carlson

IPC: H01L49/02

CPC classification number: H01L27/10855 ,  H01G4/20 ,  H01L21/02186 ,  H01L21/02192 ,  H01L21/02244 ,  H01L27/108 ,  H01L27/10852 ,  H01L28/40 ,  H01L28/55 ,  H01L28/60 ,  H01L28/90

Abstract: Methods of forming a capacitor including forming at least one aperture in a support material, forming a titanium nitride material within the at least one aperture, forming a ruthenium material within the at least one aperture over the titanium nitride material, and forming a first conductive material over the ruthenium material within the at least one aperture. The support material may then be removed and the titanium nitride material may be oxidized to form a titanium dioxide material. A second conductive material may then be formed over an outer surface of the titanium dioxide material.

Abstract translation: 形成电容器的方法包括在支撑材料中形成至少一个孔，在所述至少一个孔内形成氮化钛材料，在所述氮化钛材料的所述至少一个孔内形成钌材料，以及形成第一导电材料 在该至少一个孔内的钌材料上。 然后可以移除支撑材料，并且氮化钛材料可被氧化以形成二氧化钛材料。 然后可以在二氧化钛材料的外表面上形成第二导电材料。