公开(公告)号：US07294580B2

公开(公告)日：2007-11-13

申请号：US10860833

申请日：2004-06-03

申请人： Seokmin Yun ,  Ji Zhu ,  Peter Cirigliano ,  Sangheon Lee ,  Thomas S. Choi ,  Peter Loewenhardt ,  Mark H. Wilcoxson ,  Reza Sadjadi ,  Eric A. Hudson ,  James V. Tietz

发明人： Seokmin Yun ,  Ji Zhu ,  Peter Cirigliano ,  Sangheon Lee ,  Thomas S. Choi ,  Peter Loewenhardt ,  Mark H. Wilcoxson ,  Reza Sadjadi ,  Eric A. Hudson ,  James V. Tietz

IPC分类号： H01L21/00

CPC分类号： H01L21/31116 ,  H01L21/31138 ,  H01L21/76802 ,  H01L21/76829

摘要： A method for etching a feature in a low-k dielectric layer through a photoresist etch mask over a substrate. A gas-modulated cyclic stripping process is performed for more than three cycles for stripping a single photoresist mask. Each cycle of the gas-modulated cyclic stripping process comprises performing a protective layer formation phase and a stripping phase. The protective layer forming phase using first gas chemistry with a deposition gas chemistry, wherein the protective layer forming phase is performed in about 0.005 to 10 seconds for each cycle. The performing the stripping phase for stripping the photoresist mask using a second gas chemistry using a stripping gas chemistry, where the first gas chemistry is different than the second gas chemistry, wherein the etching phase is performed in about 0.005 to 10 seconds for each cycle.

摘要翻译： 一种通过光刻胶蚀刻掩模在衬底上蚀刻低k电介质层中的特征的方法。 执行气体调制的循环剥离工艺超过三个循环以剥离单个光致抗蚀剂掩模。 气体调节循环汽提过程的每个循环包括进行保护层形成阶段和汽提阶段。 使用具有沉积气化学性质的第一气体化学物质的保护层形成阶段，其中保护层形成阶段在每个循环中以约0.005至10秒钟进行。 使用第二种气体化学法，使用剥离气体化学法，其中第一种气体化学物质与第二种气体化学物质不同，进行汽提阶段以剥离光致抗蚀剂掩模，其中每个循环在约0.005至10秒内进行蚀刻阶段。

公开(公告)号：US08614149B2

公开(公告)日：2013-12-24

申请号：US13586571

申请日：2012-08-15

申请人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S. M. Reza Sadjadi

发明人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S. M. Reza Sadjadi

IPC分类号： H01L21/311

CPC分类号： C23F4/00 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816 ,  Y10S438/947

摘要： A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

摘要翻译： 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开，控制层突破性化学。 特征被蚀刻到蚀刻层中，其蚀刻化学性质不同于控制层突破化学，其中控制层比蚀刻化学性质比保形层蚀刻更耐腐蚀。

公开(公告)号：US20120309201A1

公开(公告)日：2012-12-06

申请号：US13586571

申请日：2012-08-15

申请人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S.M. Reza Sadjadi

发明人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S.M. Reza Sadjadi

IPC分类号： H01L21/302

CPC分类号： C23F4/00 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816 ,  Y10S438/947

摘要： A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

摘要翻译： 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开，控制层突破性化学。 特征被蚀刻到蚀刻层中，其蚀刻化学性质不同于控制层突破性化学，其中控制层比蚀刻化学性质比共形层更耐蚀刻蚀刻。

公开(公告)号：US07695632B2

公开(公告)日：2010-04-13

申请号：US11142509

申请日：2005-05-31

申请人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S.M. Reza Sadjadi

发明人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S.M. Reza Sadjadi

IPC分类号： H01L21/302

CPC分类号： C23F4/00 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816 ,  Y10S438/947

摘要： A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

摘要翻译： 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开，控制层突破性化学。 特征被蚀刻到蚀刻层中，其蚀刻化学性质不同于控制层突破性化学，其中控制层比蚀刻化学性质比共形层更耐蚀刻蚀刻。

公开(公告)号：US07541291B2

公开(公告)日：2009-06-02

申请号：US11821422

申请日：2007-06-22

申请人： Sean S. Kang ,  Sangheon Lee ,  Wan-Lin Chen ,  Eric A. Hudson ,  S. M. Reza Sadjadi ,  Gan Ming Zhao

发明人： Sean S. Kang ,  Sangheon Lee ,  Wan-Lin Chen ,  Eric A. Hudson ,  S. M. Reza Sadjadi ,  Gan Ming Zhao

IPC分类号： H01L21/302

CPC分类号： H01L21/76802 ,  H01L21/0337 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816

摘要： A feature in a layer is provided. A photoresist layer is formed over the layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls, where the photoresist features have a first critical dimension. A conformal layer is deposited over the sidewalls of the photoresist features to reduce the critical dimensions of the photoresist features. Features are etched into the layer, wherein the layer features have a second critical dimension, which is less than the first critical dimension.

摘要翻译： 提供了一个图层中的一个特征。 在该层上形成光致抗蚀剂层。 光致抗蚀剂层被图案化以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征，其中光致抗蚀剂特征具有第一临界尺寸。 在光致抗蚀剂特征的侧壁上沉积保形层以减少光致抗蚀剂特征的临界尺寸。 将特征蚀刻到层中，其中层特征具有小于第一临界尺寸的第二临界尺寸。

公开(公告)号：US08268118B2

公开(公告)日：2012-09-18

申请号：US12711420

申请日：2010-02-24

申请人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S. M. Reza Sadjadi

发明人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S. M. Reza Sadjadi

IPC分类号： H01L21/3065

CPC分类号： C23F4/00 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816 ,  Y10S438/947

摘要： A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

摘要翻译： 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开，控制层突破性化学。 特征被蚀刻到蚀刻层中，其蚀刻化学性质不同于控制层突破性化学，其中控制层比蚀刻化学性质比共形层更耐蚀刻蚀刻。

公开(公告)号：US07910489B2

公开(公告)日：2011-03-22

申请号：US11357548

申请日：2006-02-17

申请人： Ji Soo Kim ,  Peter Cirigliano ,  Sangheon Lee ,  Dongho Heo ,  Daehan Choi ,  S. M. Reza Sadjadi

发明人： Ji Soo Kim ,  Peter Cirigliano ,  Sangheon Lee ,  Dongho Heo ,  Daehan Choi ,  S. M. Reza Sadjadi

IPC分类号： H01L21/302

CPC分类号： H01L21/31116 ,  H01L21/30655

摘要： A method for etching features into an etch layer disposed below a photoresist mask without an intermediate hardmask is provided. A plurality of etch cycles are provided. Each etch cycle comprises providing a deposition etch phase that etches features into the etch layer and deposits polymer on sidewalls of the features and over the photoresist and providing a cleaning phase that removes polymer deposited on the sidewalls.

摘要翻译： 提供了一种用于将特征蚀刻到设置在光刻胶掩模下方而不具有中间硬掩模的蚀刻层中的方法。 提供多个蚀刻循环。 每个蚀刻循环包括提供沉积蚀刻阶段，其将特征蚀刻到蚀刻层中并将聚合物沉积在特征的侧壁上并在光致抗蚀剂上方，并提供去除沉积在侧壁上的聚合物的清洁相。

公开(公告)号：US20060266478A1

公开(公告)日：2006-11-30

申请号：US11142509

申请日：2005-05-31

申请人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S.M. Reza Sadjadi

发明人： Sangheon Lee ,  Dae-Han Choi ,  Jisoo Kim ,  Peter Cirigliano ,  Zhisong Huang ,  Robert Charatan ,  S.M. Reza Sadjadi

IPC分类号： H01L21/306 ,  C23F1/00

CPC分类号： C23F4/00 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816 ,  Y10S438/947

摘要： A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

公开(公告)号：US07250371B2

公开(公告)日：2007-07-31

申请号：US10648953

申请日：2003-08-26

申请人： Sean S. Kang ,  Sangheon Lee ,  Wan-Lin Chen ,  Eric A. Hudson ,  S. M. Reza Sadjadi ,  Gan Ming Zhao

发明人： Sean S. Kang ,  Sangheon Lee ,  Wan-Lin Chen ,  Eric A. Hudson ,  S. M. Reza Sadjadi ,  Gan Ming Zhao

IPC分类号： H01L21/311

CPC分类号： H01L21/76802 ,  H01L21/0337 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/76816

摘要： A feature in a layer is provided. A photoresist layer is formed over the layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls, where the photoresist features have a first critical dimension. A conformal layer is deposited over the sidewalls of the photoresist features to reduce the critical dimensions of the photoresist features. Features are etched into the layer, wherein the layer features have a second critical dimension, which is less than the first critical dimension.

摘要翻译： 提供了一个图层中的一个特征。 在该层上形成光致抗蚀剂层。 光致抗蚀剂层被图案化以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征，其中光致抗蚀剂特征具有第一临界尺寸。 在光致抗蚀剂特征的侧壁上沉积保形层以减少光致抗蚀剂特征的临界尺寸。 将特征蚀刻到层中，其中层特征具有小于第一临界尺寸的第二临界尺寸。

公开(公告)号：US07192531B1

公开(公告)日：2007-03-20

申请号：US10603412

申请日：2003-06-24

申请人： Sean S. Kang ,  Sangheon Lee ,  Wan-Lin Chen ,  Eric A. Hudson ,  Reza Sadjadi

发明人： Sean S. Kang ,  Sangheon Lee ,  Wan-Lin Chen ,  Eric A. Hudson ,  Reza Sadjadi

IPC分类号： H01L21/302

CPC分类号： H01L21/76808 ,  H01L21/31138

摘要： A method for forming damascene features in a dielectric layer over a barrier layer over a substrate is provided. A plurality of vias are etched in the dielectric layer to the barrier layer with a plasma etching process in the plasma processing chamber. A patterned photoresist layer is formed with a trench pattern. Within a single plasma process chamber a combination via plug deposition to form plugs in the vias over the barrier layer and trench etch is provided.

摘要翻译： 提供了一种用于在衬底上的阻挡层上的介电层中形成镶嵌特征的方法。 在等离子体处理室中通过等离子体蚀刻工艺将多个通孔在电介质层中蚀刻到阻挡层。 形成具有沟槽图案的图案化的光致抗蚀剂层。 在单个等离子体处理室内，提供了通过插塞沉积的组合以在阻挡层上的通孔中形成插塞和沟槽蚀刻。