公开(公告)号：US09252238B1

公开(公告)日：2016-02-02

申请号：US14461887

申请日：2014-08-18

申请人： GLOBALFOUNDRIES Inc.

发明人： Kristina Trevino ,  Yuan-Hung Liu ,  Gabriel Padron Wells ,  Xing Zhang ,  Hoong Shing Wong ,  Chang Ho Maeng ,  Taejoon Han ,  Gowri Kamarthy ,  Isabelle Orain ,  Ganesh Upadhyaya

IPC分类号： H01L21/336 ,  H01L29/66 ,  H01L29/51 ,  H01L29/49 ,  H01L21/3213 ,  H01L29/40

CPC分类号： H01L29/66545 ,  H01L21/28088 ,  H01L21/28194 ,  H01L21/31116 ,  H01L21/31122 ,  H01L21/32136 ,  H01L29/4966 ,  H01L29/517

摘要： Semiconductor structures and fabrication methods are provided which includes, for instance, providing a gate structure over a semiconductor substrate, the gate structure including multiple conformal gate layers and a gate material disposed within the multiple conformal gate layers; recessing a portion of the multiple conformal gate layers below an upper surface of the gate structure, where upper surfaces of recessed, multiple conformal gate layers are coplanar; and removing a portion of the gate material to facilitate an upper surface of a remaining portion of the gate material to be coplanar with an upper surface of the recessed, multiple conformal gate layers.

摘要翻译： 提供半导体结构和制造方法，其包括例如在半导体衬底上提供栅极结构，所述栅极结构包括多个共形栅极层和设置在多个共形栅极层内的栅极材料; 将多个共形栅极层的一部分凹陷在栅极结构的上表面之下，其中凹入的多个共形栅极层的上表面是共面的; 以及去除所述栅极材料的一部分以便于所述栅极材料的剩余部分的上表面与所述凹入的多个共形栅极层的上表面共面。