公开(公告)号：US07390755B1

公开(公告)日：2008-06-24

申请号：US10137096

申请日：2002-05-01

Applicant: David L. Chen ,  Yuh-Jia Su ,  Eddie Ka Ho Chiu ,  Maria Paola Pozzoli ,  Senzi Li ,  Giuseppe Colangelo ,  Simone Alba ,  Simona Petroni

Inventor： David L. Chen ,  Yuh-Jia Su ,  Eddie Ka Ho Chiu ,  Maria Paola Pozzoli ,  Senzi Li ,  Giuseppe Colangelo ,  Simone Alba ,  Simona Petroni

IPC: H01L21/302

CPC classification number: B08B7/0035 ,  H01J2237/335 ,  H01L21/02063 ,  H01L21/02071

Abstract: The current invention provides methods for performing a cleaning process that provides greater cleaning efficiency with less damage to device structures. After etching and photoresist stripping, a first plasma clean is performed. The first plasma clean may comprise one or more steps. Following the first plasma clean, a first HO based clean is performed. The first HO based clean may be a de-ionized water rinse, a water vapor clean, or a plasma clean, where the plasma includes hydrogen and oxygen. Following the first HO based clean, a second plasma clean is performed, which may comprise one or more steps. A second HO based clean follows the second plasma clean, and may be a de-ionized water rinse, a water vapor clean, or a plasma clean, where the plasma includes hydrogen and oxygen. For plasma processes, an RF generated plasma, a microwave generated plasma, an inductively coupled plasma, or combination may be used. Embodiments of the invention are performed after an etch, such as a metal etch, via etch, contact etch, polysilicon etch, nitride etch or shallow trench isolation etch has been performed. Photoresist may be removed either prior to, during, or after cleaning processes according to embodiments of the invention, using an oxygen-containing plasma. Photoresist removal may be performed at low temperatures.

Abstract translation: 本发明提供了用于执行清洁过程的方法，其提供更高的清洁效率，同时对设备结构的损坏较小。 在蚀刻和光致抗蚀剂剥离之后，进行第一等离子体清洁。 第一等离子体清洁可以包括一个或多个步骤。 在第一次等离子体清洁之后，执行第一次基于HO的清洁。 第一个基于HO的清洁可以是去离子水冲洗，水蒸气清洁或等离子体清洁，其中等离子体包括氢和氧。 在第一个基于HO的清洁之后，执行第二等离子体清洁，其可以包括一个或多个步骤。 第二个基于HO的清洁遵循第二等离子体清洁，并且可以是去离子水冲洗，水蒸汽清洁或等离子体清洁，其中等离子体包括氢和氧。 对于等离子体处理，可以使用RF产生的等离子体，微波产生的等离子体，电感耦合等离子体或组合。 通过蚀刻，接触蚀刻，多晶硅蚀刻，氮化物蚀刻或浅沟槽隔离蚀刻等蚀刻，例如金属蚀刻，进行本发明的实施例。 可以使用含氧等离子体在根据本发明的实施方案的清洁方法之前，期间或之后除去光致抗蚀剂。 可以在低温下进行光刻胶去除。

公开(公告)号：US08058181B1

公开(公告)日：2011-11-15

申请号：US12502130

申请日：2009-07-13

Applicant: David L. Chen ,  Yuh-Jia Su ,  Eddie Ka Ho Chiu ,  Maria Paola Pozzoli ,  Senzi Li ,  Giuseppe Colangelo ,  Simone Alba ,  Simona Petroni

Inventor： David L. Chen ,  Yuh-Jia Su ,  Eddie Ka Ho Chiu ,  Maria Paola Pozzoli ,  Senzi Li ,  Giuseppe Colangelo ,  Simone Alba ,  Simona Petroni

IPC: H01L21/302

CPC classification number: B08B7/0035 ,  H01J2237/335 ,  H01L21/02063 ,  H01L21/02071

Abstract: The current invention provides methods for performing a cleaning process that provides greater cleaning efficiency with less damage to device structures. After etching and photoresist stripping, a first plasma clean is performed. The first plasma clean may comprise one or more steps. Following the first plasma clean, a first HO based clean is performed. The first HO based clean may be a de-ionized water rinse, a water vapor clean, or a plasma clean, where the plasma includes hydrogen and oxygen. Following the first HO based clean, a second plasma clean is performed, which may comprise one or more steps. A second HO based clean follows the second plasma clean, and may be a de-ionized water rinse, a water vapor clean, or a plasma clean, where the plasma includes hydrogen and oxygen. For plasma processes, an RF, generated plasma, a microwave generated plasma, an inductively coupled plasma, or combination may be used. Embodiments of the invention are performed after an etch, such as a metal etch, via etch, contact etch, polysilicon etch, nitride etch or shallow trench isolation etch has been performed. Photoresist may be removed either prior to, during, or after cleaning processes according to embodiments of the invention, using an oxygen-containing plasma. Photoresist removal may be performed at low temperatures.

Abstract translation: 本发明提供了用于执行清洁过程的方法，其提供更高的清洁效率，同时对设备结构的损坏较小。 在蚀刻和光致抗蚀剂剥离之后，进行第一等离子体清洁。 第一等离子体清洁可以包括一个或多个步骤。 在第一次等离子体清洁之后，执行第一次基于HO的清洁。 第一个基于HO的清洁可以是去离子水冲洗，水蒸气清洁或等离子体清洁，其中等离子体包括氢和氧。 在第一个基于HO的清洁之后，执行第二等离子体清洁，其可以包括一个或多个步骤。 第二个基于HO的清洁遵循第二等离子体清洁，并且可以是去离子水冲洗，水蒸汽清洁或等离子体清洁，其中等离子体包括氢和氧。 对于等离子体处理，可以使用RF，产生的等离子体，微波产生的等离子体，电感耦合等离子体或组合。 通过蚀刻，接触蚀刻，多晶硅蚀刻，氮化物蚀刻或浅沟槽隔离蚀刻等蚀刻，例如金属蚀刻，进行本发明的实施例。 可以使用含氧等离子体在根据本发明的实施方案的清洁方法之前，期间或之后除去光致抗蚀剂。 可以在低温下进行光刻胶去除。

公开(公告)号：US07569492B1

公开(公告)日：2009-08-04

申请号：US12111095

申请日：2008-04-28

Applicant: David L. Chen ,  Yuh-Jia Su ,  Eddie Ka Ho Chiu ,  Maria Paola Pozzoli ,  Senzi Li ,  Giuseppe Colangelo ,  Simone Alba ,  Simona Petroni

Inventor： David L. Chen ,  Yuh-Jia Su ,  Eddie Ka Ho Chiu ,  Maria Paola Pozzoli ,  Senzi Li ,  Giuseppe Colangelo ,  Simone Alba ,  Simona Petroni

IPC: H01L21/302

CPC classification number: B08B7/0035 ,  H01J2237/335 ,  H01L21/02063 ,  H01L21/02071

Abstract: The current invention provides methods for performing a cleaning process that provides greater cleaning efficiency with less damage to device structures. After etching and photoresist stripping, a first plasma clean is performed. The first plasma clean may comprise one or more steps. Following the first plasma clean, a first HO based clean is performed. The first HO based clean may be a de-ionized water rinse, a water vapor clean, or a plasma clean, where the plasma includes hydrogen and oxygen. Following the first HO based clean, a second plasma clean is performed, which may comprise one or more steps. A second HO based clean follows the second plasma clean, and may be a de-ionized water rinse, a water vapor clean, or a plasma clean, where the plasma includes hydrogen and oxygen. For plasma processes, an RF generated plasma, a microwave generated plasma, an inductively coupled plasma, or combination may be used. Embodiments of the invention are performed after an etch, such as a metal etch, via etch, contact etch, polysilicon etch, nitride etch or shallow trench isolation etch has been performed. Photoresist may be removed either prior to, during, or after cleaning processes according to embodiments of the invention, using an oxygen-containing plasma. Photoresist removal may be performed at low temperatures.

Abstract translation: 本发明提供了用于执行清洁过程的方法，其提供更高的清洁效率，同时对设备结构的损坏较小。 在蚀刻和光致抗蚀剂剥离之后，进行第一等离子体清洁。 第一等离子体清洁可以包括一个或多个步骤。 在第一次等离子体清洁之后，执行第一次基于HO的清洁。 第一个基于HO的清洁可以是去离子水冲洗，水蒸气清洁或等离子体清洁，其中等离子体包括氢和氧。 在第一个基于HO的清洁之后，执行第二等离子体清洁，其可以包括一个或多个步骤。 第二个基于HO的清洁遵循第二等离子体清洁，并且可以是去离子水冲洗，水蒸汽清洁或等离子体清洁，其中等离子体包括氢和氧。 对于等离子体处理，可以使用RF产生的等离子体，微波产生的等离子体，电感耦合等离子体或组合。 通过蚀刻，接触蚀刻，多晶硅蚀刻，氮化物蚀刻或浅沟槽隔离蚀刻等蚀刻，例如金属蚀刻，进行本发明的实施例。 可以使用含氧等离子体在根据本发明的实施方案的清洁方法之前，期间或之后除去光致抗蚀剂。 可以在低温下进行光刻胶去除。