公开(公告)号：WO2005031809A3

公开(公告)日：2005-06-23

申请号：PCT/EP2004052283

申请日：2004-09-23

Applicant: IBM ,  IBM UK ,  GOUSEV EVGENI ,  SHANG HUILING ,  D EMIC CHRISTOPHER ,  KOZLOWSKI PAUL

Inventor： GOUSEV EVGENI ,  SHANG HUILING ,  D EMIC CHRISTOPHER ,  KOZLOWSKI PAUL

IPC: H01L21/28 ,  H01L21/314 ,  H01L21/316 ,  H01L21/318 ,  H01L29/51 ,  H01L29/772

CPC classification number: H01L21/28202 ,  H01L21/02247 ,  H01L21/02326 ,  H01L21/02337 ,  H01L21/0234 ,  H01L21/28255 ,  H01L21/3143 ,  H01L21/31658 ,  H01L21/318 ,  H01L29/518 ,  Y10S438/906 ,  Y10S438/933

Abstract: A method for producing thin, below 6nm of equivalent oxide thickness, germanium oxynitride layer on Ge-based materials for use as gate dielectric is disclosed. The method involves a two step process. First, nitrogen is incorporated in a surface layer of the Ge-based material. Second, the nitrogen incorporation is followed by an oxidation step. The method yields excellent thickness control of high quality gate dielectrics for Ge-based field effect devices, such as MOS transistors. Structures of devices having the thin germanium oxynitride gate dielectric and processors made with such devices are disclosed, as well.

Abstract translation: 公开了一种用作栅极电介质的Ge基材料上产生6nm以下等效氧化物厚度薄的锗氮氧化物层的方法。 该方法涉及两步法。 首先，在Ge基材料的表层中加入氮。 其次，氮掺入之后是氧化步骤。 该方法为基于Ge的场效应器件（例如MOS晶体管）的高质量栅极电介质产生优异的厚度控制。 还公开了具有薄氮氧化锗栅电介质的器件的结构和用这种器件制造的处理器。