公开(公告)号：US06340435B1

公开(公告)日：2002-01-22

申请号：US09329012

申请日：1999-06-09

申请人： Claes H. Bjorkman ,  Min Melissa Yu ,  Hongquing Shan ,  David W. Cheung ,  Wai-Fan Yau ,  Kuowei Liu ,  Nasreen Gazala Chapra ,  Gerald Yin ,  Farhad K. Moghadam ,  Judy H. Huang ,  Dennis Yost ,  Betty Tang ,  Yunsang Kim

发明人： Claes H. Bjorkman ,  Min Melissa Yu ,  Hongquing Shan ,  David W. Cheung ,  Wai-Fan Yau ,  Kuowei Liu ,  Nasreen Gazala Chapra ,  Gerald Yin ,  Farhad K. Moghadam ,  Judy H. Huang ,  Dennis Yost ,  Betty Tang ,  Yunsang Kim

IPC分类号： C23F100

CPC分类号： H01L21/76835 ,  C23C16/401 ,  H01L21/02126 ,  H01L21/022 ,  H01L21/02208 ,  H01L21/02274 ,  H01L21/02304 ,  H01L21/31116 ,  H01L21/31138 ,  H01L21/3121 ,  H01L21/31612 ,  H01L21/31633 ,  H01L21/76801 ,  H01L21/76802 ,  H01L21/76807 ,  H01L21/76829

摘要： A method of depositing and etching dielectric layers having low dielectric constants and etch rates that vary by at least 3:1 for formation of horizontal interconnects. The amount of carbon or hydrogen in the dielectric layer is varied by changes in deposition conditions to provide low k dielectric layers that can replace etch stop layers or conventional dielectric layers in damascene applications. A dual damascene structure having two or more dielectric layers with dielectric constants lower than about 4 can be deposited in a single reactor and then etched to form vertical and horizontal interconnects by varying the concentration of a carbon:oxygen gas such as carbon monoxide. The etch gases for forming vertical interconnects preferably comprises CO and a fluorocarbon, and CO is preferably excluded from etch gases for forming horizontal interconnects.

摘要翻译： 沉积和蚀刻具有低介电常数和蚀刻速率的介电层的方法，该介电层变化至少3:1以形成水平互连。 电介质层中的碳或氢的量可以通过沉积条件的变化来改变，以提供低k电介质层，其可代替蚀刻停止层或在镶嵌应用中的常规电介质层。 具有介电常数低于约4的两个或多个电介质层的双镶嵌结构可以沉积在单个反应器中，然后通过改变碳：氧气如一氧化碳的浓度进行蚀刻以形成垂直和水平互连。 用于形成垂直互连的蚀刻气体优选地包括CO和碳氟化合物，并且CO优选从用于形成水平互连的蚀刻气体中排除。

公开(公告)号：US06858153B2

公开(公告)日：2005-02-22

申请号：US10011368

申请日：2001-11-05

申请人： Claes H. Bjorkman ,  Min Melissa Yu ,  Hongquing Shan ,  David W. Cheung ,  Wai-Fan Yau ,  Kuowei Liu ,  Nasreen Gazala Chapra ,  Gerald Yin ,  Farhad K. Moghadam ,  Judy H. Huang ,  Dennis Yost ,  Betty Tang ,  Yunsang Kim

发明人： Claes H. Bjorkman ,  Min Melissa Yu ,  Hongquing Shan ,  David W. Cheung ,  Wai-Fan Yau ,  Kuowei Liu ,  Nasreen Gazala Chapra ,  Gerald Yin ,  Farhad K. Moghadam ,  Judy H. Huang ,  Dennis Yost ,  Betty Tang ,  Yunsang Kim

IPC分类号： H01L21/302 ,  A01C15/02 ,  A01C17/00 ,  C23C16/40 ,  H01L21/3065 ,  H01L21/31 ,  H01L21/311 ,  H01L21/312 ,  H01L21/316 ,  H01L21/768 ,  H01L23/522 ,  C23F1/00

CPC分类号： H01L21/76835 ,  C23C16/401 ,  H01L21/02126 ,  H01L21/022 ,  H01L21/02208 ,  H01L21/02274 ,  H01L21/02304 ,  H01L21/31116 ,  H01L21/31138 ,  H01L21/3121 ,  H01L21/31612 ,  H01L21/31633 ,  H01L21/76801 ,  H01L21/76802 ,  H01L21/76807 ,  H01L21/76829

摘要： A method of depositing and etching dielectric layers having low dielectric constants and etch rates that vary by at least 3:1 for formation of horizontal interconnects. The amount of carbon or hydrogen in the dielectric layer is varied by changes in deposition conditions to provide low k dielectric layers that can replace etch stop layers or conventional dielectric layers in damascene applications. A dual damascene structure having two or more dielectric layers with dielectric constants lower than about 4 can be deposited in a single reactor and then etched to form vertical and horizontal interconnects by varying the concentration of a carbon:oxygen gas such as carbon monoxide. The etch gases for forming vertical interconnects preferably comprises CO and a fluorocarbon, and CO is preferably excluded from etch gases for forming horizontal interconnects.

摘要翻译： 沉积和蚀刻具有低介电常数和蚀刻速率的介电层的方法，该介电层变化至少3:1以形成水平互连。 电介质层中的碳或氢的量可以通过沉积条件的变化来改变，以提供低k电介质层，其可代替蚀刻停止层或在镶嵌应用中的常规电介质层。 具有介电常数低于约4的两个或多个电介质层的双镶嵌结构可以沉积在单个反应器中，然后通过改变碳：氧气如一氧化碳的浓度进行蚀刻以形成垂直和水平互连。 用于形成垂直互连的蚀刻气体优选地包括CO和碳氟化合物，并且CO优选从用于形成水平互连的蚀刻气体中排除。

公开(公告)号：US06669858B2

公开(公告)日：2003-12-30

申请号：US10011369

申请日：2001-11-05

申请人： Claes H. Bjorkman ,  Min Melissa Yu ,  Hongquing Shan ,  David W. Cheung ,  Wai-Fan Yau ,  Kuowei Liu ,  Nasreen Gazala Chapra ,  Gerald Yin ,  Farhad K. Moghadam ,  Judy H. Huang ,  Dennis Yost ,  Betty Tang ,  Yunsang Kim

发明人： Claes H. Bjorkman ,  Min Melissa Yu ,  Hongquing Shan ,  David W. Cheung ,  Wai-Fan Yau ,  Kuowei Liu ,  Nasreen Gazala Chapra ,  Gerald Yin ,  Farhad K. Moghadam ,  Judy H. Huang ,  Dennis Yost ,  Betty Tang ,  Yunsang Kim

IPC分类号： B44C122

CPC分类号： H01L21/76835 ,  C23C16/401 ,  H01L21/02126 ,  H01L21/022 ,  H01L21/02208 ,  H01L21/02274 ,  H01L21/02304 ,  H01L21/31116 ,  H01L21/31138 ,  H01L21/3121 ,  H01L21/31612 ,  H01L21/31633 ,  H01L21/76801 ,  H01L21/76802 ,  H01L21/76807 ,  H01L21/76829

摘要： A method of depositing and etching dielectric layers having low dielectric constants and etch rates that vary by at least 3:1 for formation of horizontal interconnects. The amount of carbon or hydrogen in the dielectric layer is varied by changes in deposition conditions to provide low k dielectric layers that can replace etch stop layers or conventional dielectric layers in damascene applications. A dual damascene structure having two or more dielectric layers with dielectric constants lower than about 4 can be deposited in a single reactor and then etched to form vertical and horizontal interconnects by varying the concentration of a carbon:oxygen gas such as carbon monoxide. The etch gases for forming vertical interconnects preferably comprises CO and a fluorocarbon, and CO is preferably excluded from etch gases for forming horizontal interconnects.