公开(公告)号：WO2004053979A8

公开(公告)日：2005-05-12

申请号：PCT/EP0350957

申请日：2003-12-08

Applicant: IBM ,  IBM DEUTSCHLAND ,  INFINEON TECHNOLOGIES AG

Inventor： CLEVENGER LARRY ,  DALTON TIMOTHY ,  HOINKIS MARK ,  KALDOR STEFFEN ,  KUMAR KAUSHIK ,  LA TULIPE DOUGLAS JR ,  SEO SOON-CHEON ,  SIMON ANDREW ,  WANG YUN-YU ,  YANG CHIH-CHAO ,  YANG HAINING

IPC: H01L21/768

CPC classification number: H01L21/76843 ,  H01L21/76805 ,  H01L21/76807 ,  H01L21/76834 ,  H01L21/76835 ,  H01L21/76844 ,  H01L21/76847 ,  H01L21/76865

Abstract: Disclosed is a method for depositing a metal layer on an interconnect structure for a semiconductor wafer. In the method, a metal conductor (14) is covered by a capping layer (16) and a dielectric layer (18). The dielectric layer is patterned so as to expose the capping layer. The capping layer is then sputter etched to remove the capping layer and expose the metal conductor (14). In the process of sputter etching, the capping layer is redeposited (22) onto the sidewall of the pattern. Lastly, at least one layer is deposited into the pattern and covers the redeposited capping layer.

Abstract translation: 公开了一种用于在半导体晶片的互连结构上沉积金属层的方法。 在该方法中，金属导体（14）被覆盖层（16）和电介质层（18）覆盖。 对电介质层进行图案化以使覆盖层露出。 然后溅射蚀刻覆盖层以去除覆盖层并暴露金属导体（14）。 在溅射蚀刻的过程中，将覆盖层再沉积（22）到图案的侧壁上。 最后，至少一层沉积到图案中并覆盖再沉积的覆盖层。

公开(公告)号：WO2009033837A2

公开(公告)日：2009-03-19

申请号：PCT/EP2008058306

申请日：2008-06-27

Applicant: IBM ,  IBM UK ,  ROBSON MARK TODHUNTER ,  LA TULIPE DOUGLAS JR

Inventor： ROBSON MARK TODHUNTER ,  LA TULIPE DOUGLAS JR

IPC: H01L21/768 ,  H01L23/48

CPC classification number: H01L21/76898 ,  H01L21/76804 ,  H01L21/84 ,  H01L23/481 ,  H01L27/0688 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method of forming a high aspect ratio via opening through multiple dielectric layers, a high aspect ratio electrically conductive via, methods of forming three-dimension integrated circuits, and three-dimensional integrated circuits. The methods include forming a stack of at least four dielectric layers and etching the first and third dielectric layers with processes selective to the second and fourth dielectric layers, etching the second and third dielectric layers with processes selective to the first and second dielectric layers. Advantageously the process used to etch the third dielectric layer is not substantially selective to the first dielectric layer.

Abstract translation: 通过多个电介质层开口形成高纵横比的方法，高纵横比导电通孔，形成三维集成电路的方法和三维集成电路。 所述方法包括形成至少四个电介质层的叠层，并且用对第二和第四电介质层选择性的工艺蚀刻第一和第三电介质层，用对第一和第二电介质层选择的工艺蚀刻第二和第三电介质层。 有利地，用于蚀刻第三介电层的工艺对第一介电层基本不具有选择性。

公开(公告)号：DE60332865D1

公开(公告)日：2010-07-15

申请号：DE60332865

申请日：2003-12-08

Applicant: IBM

Inventor： CLEVENGER LARRY ,  DALTON TIMOTHY ,  HOINKIS MARK ,  KALDOR STEFFEN ,  KUMAR KAUSHIK ,  LA TULIPE DOUGLAS JR ,  SEO SOON-CHEON ,  SIMON ANDREW ,  WANG YUN-YU ,  YANG CHIH-CHAO ,  YANG HAINING

IPC: H01L21/768