公开(公告)号：US06979579B1

公开(公告)日：2005-12-27

申请号：US10813913

申请日：2004-03-30

申请人： Jisoo Kim ,  Sangheon Lee ,  Sean Kang ,  Binet Worsham ,  Bi-Ming Yen ,  Reza Sadjadi ,  Peter K. Loewenhardt

发明人： Jisoo Kim ,  Sangheon Lee ,  Sean Kang ,  Binet Worsham ,  Bi-Ming Yen ,  Reza Sadjadi ,  Peter K. Loewenhardt

IPC分类号： G01B21/00 ,  H01J9/42 ,  H01L21/00 ,  H01L21/66

CPC分类号： H01J9/42 ,  H01L22/12 ,  H01L2924/0002 ,  H01L2924/00

摘要： In a plasma processing system, a method of inspecting a contact opening of a contact formed in a first layer of the substrate to determine whether the contact reaches a metal layer that is disposed below the first layer is shown. The method includes flowing a gas mixture into a plasma reactor of the plasma processing system, the gas mixture comprising a flow of a chlorine containing gas. The method also includes striking a plasma from the gas mixture; and exposing the contact to the plasma. The method further includes detecting whether metal chloride is present in the contact opening after the exposing.

摘要翻译： 在等离子体处理系统中，示出了检查形成在基板的第一层中的接点的接触开口以确定接触是否到达设置在第一层下方的金属层的方法。 该方法包括将气体混合物流入等离子体处理系统的等离子体反应器，气体混合物包含含氯气体的流。 该方法还包括从气体混合物中冲击等离子体; 并将接触点暴露于等离子体。 该方法还包括在曝光后检测接触孔中是否存在金属氯化物。

公开(公告)号：US07078350B2

公开(公告)日：2006-07-18

申请号：US10804430

申请日：2004-03-19

申请人： Jisoo Kim ,  Binet Worsham ,  Bi-Ming Yen ,  Peter K. Loewenhardt

发明人： Jisoo Kim ,  Binet Worsham ,  Bi-Ming Yen ,  Peter K. Loewenhardt

IPC分类号： H01L21/302

CPC分类号： H01L21/31144 ,  H01L21/76811 ,  H01L21/76813

摘要： A method of etching a substrate in a plasma processing system is disclosed. The substrate has a semi-conductor layer, a first barrier layer disposed above the semi-conductor layer, a low-k layer disposed above the first barrier layer, a third hard mask layer disposed above the low-k layer; a second hard mask layer disposed above the third hard mask layer, and a first hard mask layer disposed above the second hard mask layer. The method includes alternatively etching the substrate with a first etchant and a second etchant, wherein the first etchant has a low selectivity to a first hard mask material of the first hard mask layer, a third hard mask material of the a third hard mask layer, and a first barrier layer material of the first barrier layer, but a high selectivity to a second hard mask material of the second hard mask layer; and wherein the second etchant has a high selectivity to the first hard mask material of the first hard mask layer, the third hard mask material of the third hard mask layer, and the first barrier layer material of the first barrier layer, and the second etchant has a low selectivity to the second hard mask material of the second hard mask layer.

摘要翻译： 公开了一种在等离子体处理系统中蚀刻衬底的方法。 衬底具有半导体层，设置在半导体层上方的第一势垒层，设置在第一阻挡层上方的低k层，设置在低k层上方的第三硬掩模层; 设置在第三硬掩模层之上的第二硬掩模层，以及设置在第二硬掩模层上方的第一硬掩模层。 所述方法包括用第一蚀刻剂和第二蚀刻剂替代地蚀刻所述衬底，其中所述第一蚀刻剂对所述第一硬掩模层的第一硬掩模材料具有低选择性，所述第三硬掩模层的第三硬掩模材料， 和第一阻挡层的第一阻挡层材料，但对第二硬掩模层的第二硬掩模材料具有高选择性; 并且其中第二蚀刻剂对第一硬掩模层的第一硬掩模材料，第三硬掩模层的第三硬掩模材料和第一阻挡层的第一阻挡层材料和第二蚀刻剂具有高选择性 对第二硬掩模层的第二硬掩模材料具有低选择性。

公开(公告)号：US20050205519A1

公开(公告)日：2005-09-22

申请号：US10804430

申请日：2004-03-19

申请人： Jisoo Kim ,  Binet Worsham ,  Bi-Ming Yen ,  Peter Loewenhardt

发明人： Jisoo Kim ,  Binet Worsham ,  Bi-Ming Yen ,  Peter Loewenhardt

IPC分类号： B44C1/22 ,  C03C15/00 ,  C23F1/00 ,  H01L21/302 ,  H01L21/311 ,  H01L21/768

CPC分类号： H01L21/31144 ,  H01L21/76811 ,  H01L21/76813

摘要： A method of etching a substrate in a plasma processing system is disclosed. The substrate has a semi-conductor layer, a first barrier layer disposed above the semi-conductor layer, a low-k layer disposed above the first barrier layer, a third hard mask layer disposed above the low-k layer; a second hard mask layer disposed above the third hard mask layer, and a first hard mask layer disposed above the second hard mask layer. The method includes alternatively etching the substrate with a first etchant and a second etchant, wherein the first etchant has a low selectivity to a first hard mask material of the first hard mask layer, a third hard mask material of the a third hard mask layer, and a first barrier layer material of the first barrier layer, but a high selectivity to a second hard mask material of the second hard mask layer; and wherein the second etchant has a high selectivity to the first hard mask material of the first hard mask layer, the third hard mask material of the third hard mask layer, and the first barrier layer material of the first barrier layer, and the first etchant has a low selectivity to the second hard mask material of the second hard mask layer.

摘要翻译： 公开了一种在等离子体处理系统中蚀刻衬底的方法。 衬底具有半导体层，设置在半导体层上方的第一势垒层，设置在第一阻挡层上方的低k层，设置在低k层上方的第三硬掩模层; 设置在第三硬掩模层之上的第二硬掩模层，以及设置在第二硬掩模层上方的第一硬掩模层。 所述方法包括用第一蚀刻剂和第二蚀刻剂替代地蚀刻所述衬底，其中所述第一蚀刻剂对所述第一硬掩模层的第一硬掩模材料具有低选择性，所述第三硬掩模层的第三硬掩模材料， 和第一阻挡层的第一阻挡层材料，但对第二硬掩模层的第二硬掩模材料具有高选择性; 并且其中第二蚀刻剂对第一硬掩模层的第一硬掩模材料，第三硬掩模层的第三硬掩模材料和第一阻挡层的第一阻挡层材料和第一蚀刻剂具有高选择性 对第二硬掩模层的第二硬掩模材料具有低选择性。

公开(公告)号：US20060223327A1

公开(公告)日：2006-10-05

申请号：US11094559

申请日：2005-03-29

申请人： Jisoo Kim ,  Sangheon Lee ,  Binet Worsham ,  Robert Charatan ,  S.M. Sadjadi

发明人： Jisoo Kim ,  Sangheon Lee ,  Binet Worsham ,  Robert Charatan ,  S.M. Sadjadi

IPC分类号： H01L21/302 ,  H01L21/461

CPC分类号： H01L21/31116

摘要： A method for etching a dielectric layer over a substrate is provided. A photoresist mask is formed over the dielectric layer. The substrate is placed in a plasma processing chamber. An etchant gas comprising NF3 is provided into the plasma chamber. A plasma is formed from the NF3 gas. The dielectric layer is etched through the photoresist mask with the plasma from the NF3 gas.

摘要翻译： 提供了一种在衬底上蚀刻电介质层的方法。 在电介质层上形成光致抗蚀剂掩模。 将基板放置在等离子体处理室中。 包含NF 3 N的蚀刻剂气体被提供到等离子体室中。 从NF 3 N气体形成等离子体。 通过来自NF 3 N 3气体的等离子体通过光致抗蚀剂掩模蚀刻电介质层。

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：US07442649B2

公开(公告)日：2008-10-28

申请号：US11094559

申请日：2005-03-29

申请人： Jisoo Kim ,  Sangheon Lee ,  Binet A. Worsham ,  Robert Charatan ,  S.M. Reza Sadjadi

发明人： Jisoo Kim ,  Sangheon Lee ,  Binet A. Worsham ,  Robert Charatan ,  S.M. Reza Sadjadi

IPC分类号： H01L21/302 ,  H01L21/461

CPC分类号： H01L21/31116

摘要： A method for etching a dielectric layer over a substrate is provided. A photoresist mask is formed over the dielectric layer. The substrate is placed in a plasma processing chamber. An etchant gas comprising NF3 is provided into the plasma chamber. A plasma is formed from the NF3 gas. The dielectric layer is etched through the photoresist mask with the plasma from the NF3 gas.

摘要翻译： 提供了一种在衬底上蚀刻电介质层的方法。 在电介质层上形成光致抗蚀剂掩模。 将基板放置在等离子体处理室中。 包含NF 3 N的蚀刻剂气体被提供到等离子体室中。 从NF 3 N气体形成等离子体。 通过来自NF 3 N 3气体的等离子体通过光致抗蚀剂掩模蚀刻电介质层。

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：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。