公开(公告)号：US20050179098A1

公开(公告)日：2005-08-18

申请号：US10780513

申请日：2004-02-17

申请人： Bor-Wen Chan ,  Chih-Hao Wang ,  Lawrance Hsu ,  Hun-Jan Tao

发明人： Bor-Wen Chan ,  Chih-Hao Wang ,  Lawrance Hsu ,  Hun-Jan Tao

IPC分类号： H01L21/28 ,  H01L21/3205 ,  H01L21/336 ,  H01L21/4763 ,  H01L21/8234 ,  H01L21/8238 ,  H01L29/49 ,  H01L29/78 ,  H01L29/94

CPC分类号： H01L29/6659 ,  H01L21/28097 ,  H01L21/823425 ,  H01L21/823443 ,  H01L21/823462 ,  H01L21/823835 ,  H01L21/823857 ,  H01L29/4975 ,  H01L29/66545 ,  H01L29/7833

摘要： A new method to form metal silicide gates in the fabrication of an integrated circuit device is achieved. The method comprises forming polysilicon lines overlying a substrate with a dielectric layer therebetween. A first isolation layer is formed overlying the substrate and the sidewalls of the polysilicon lines. The first isolation layer does not overlie the top surface of the polysilicon lines. The polysilicon lines are partially etched down such that the top surfaces of the polysilicon lines are below the top surface of the first isolation layer. A metal layer is deposited overlying the polysilicon lines. A thermal anneal is used to completely convert the polysilicon lines to metal silicide gates. The unreacted metal layer is removed to complete the device.

摘要翻译： 实现了在制造集成电路器件中形成金属硅化物栅极的新方法。 该方法包括在其间具有介电层的衬底上形成多晶硅线。 第一隔离层形成在衬底和多晶硅线的侧壁上。 第一隔离层不覆盖多晶硅线的顶表面。 多晶硅线被部分地向下蚀刻，使得多晶硅线的顶表面在第一隔离层的顶表面下方。 金属层沉积在多晶硅线上。 使用热退火将多晶硅线完全转换成金属硅化物栅极。 去除未反应的金属层以完成该装置。

公开(公告)号：US07122484B2

公开(公告)日：2006-10-17

申请号：US10833558

申请日：2004-04-28

申请人： Baw-Ching Perng ,  Yi-Chen Huang ,  Jun-Lung Huang ,  Bor-Wen Chan ,  Peng-Fu Hsu ,  Hsin-Ching Shih ,  Lawrance Hsu ,  Hun-Jan Tao

发明人： Baw-Ching Perng ,  Yi-Chen Huang ,  Jun-Lung Huang ,  Bor-Wen Chan ,  Peng-Fu Hsu ,  Hsin-Ching Shih ,  Lawrance Hsu ,  Hun-Jan Tao

IPC分类号： H01L21/469 ,  H01L21/44

CPC分类号： H01L21/76814 ,  C11D3/3947 ,  C11D7/50 ,  C11D11/0047 ,  G03F7/423 ,  H01L21/02063 ,  H01L21/02101 ,  H01L21/31133 ,  H01L21/31144 ,  H01L21/76808

摘要： A method for removing organic material from an opening in a low k dielectric layer and above a metal layer on a substrate is disclosed. An ozone water solution comprised of one or more additives such as hydroxylamine or an ammonium salt is applied as a spray or by immersion. A chelating agent may be added to protect the metal layer from oxidation. A diketone may be added to the ozone water solution or applied in a gas or liquid phase in a subsequent step to remove any metal oxide that forms during the ozone treatment. A supercritical fluid mixture that includes CO2 and ozone can be used to remove organic residues that are not easily stripped by one of the aforementioned liquid solutions. The removal method prevents changes in the dielectric constant and refractive index of the low k dielectric layer and cleanly removes residues which improve device performance.

摘要翻译： 公开了一种从基底上的低k电介质层和金属层上方的开口除去有机材料的方法。 将由一种或多种添加剂如羟胺或铵盐组成的臭氧水溶液作为喷雾或浸渍施用。 可以加入螯合剂以保护金属层免于氧化。 可以将二酮加入到臭氧水溶液中或在随后的步骤中以气相或液相的形式施加，以除去在臭氧处理期间形成的任何金属氧化物。 可以使用包括CO 2和臭氧的超临界流体混合物来除去不易被上述液体溶液剥离的有机残留物。 去除方法防止低k电介质层的介电常数和折射率的变化，并且清洁地去除提高器件性能的残留物。

公开(公告)号：US07067391B2

公开(公告)日：2006-06-27

申请号：US10780513

申请日：2004-02-17

申请人： Bor-Wen Chan ,  Chih-Hao Wang ,  Lawrance Hsu ,  Hun-Jan Tao

发明人： Bor-Wen Chan ,  Chih-Hao Wang ,  Lawrance Hsu ,  Hun-Jan Tao

IPC分类号： H01L21/28 ,  H01L21/4763 ,  H01L21/44 ,  H01L21/302

CPC分类号： H01L29/6659 ,  H01L21/28097 ,  H01L21/823425 ,  H01L21/823443 ,  H01L21/823462 ,  H01L21/823835 ,  H01L21/823857 ,  H01L29/4975 ,  H01L29/66545 ,  H01L29/7833

摘要： A new method to form metal silicide gates in the fabrication of an integrated circuit device is achieved. The method comprises forming polysilicon lines overlying a substrate with a dielectric layer therebetween. A first isolation layer is formed overlying the substrate and the sidewalls of the polysilicon lines. The first isolation layer does not overlie the top surface of the polysilicon lines. The polysilicon lines are partially etched down such that the top surfaces of the polysilicon lines are below the top surface of the first isolation layer. A metal layer is deposited overlying the polysilicon lines. A thermal anneal is used to completely convert the polysilicon lines to metal silicide gates. The unreacted metal layer is removed to complete the device.

摘要翻译： 实现了在制造集成电路器件中形成金属硅化物栅极的新方法。 该方法包括在其间具有介电层的衬底上形成多晶硅线。 第一隔离层形成在衬底和多晶硅线的侧壁上。 第一隔离层不覆盖多晶硅线的顶表面。 多晶硅线被部分地向下蚀刻，使得多晶硅线的顶表面在第一隔离层的顶表面下方。 金属层沉积在多晶硅线上。 使用热退火将多晶硅线完全转换成金属硅化物栅极。 去除未反应的金属层以完成该装置。