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11.
公开(公告)号:US20050070100A1
公开(公告)日:2005-03-31
申请号:US10673908
申请日:2003-09-30
申请人: Hideaki Yamasaki , Tsukasa Matsuda , Atsushi Gomi , Tatsuo Hatano , Masahito Sugiura , Yumiko Kawano , Gert Leusink , Fenton McFeely , Sandra Malhotra
发明人: Hideaki Yamasaki , Tsukasa Matsuda , Atsushi Gomi , Tatsuo Hatano , Masahito Sugiura , Yumiko Kawano , Gert Leusink , Fenton McFeely , Sandra Malhotra
IPC分类号: C23C16/16 , C23C16/44 , H01L21/285 , H01L21/44
CPC分类号: C23C16/16 , H01L21/28556
摘要: A method for depositing metal layers on semiconductor substrates by a thermal chemical vapor deposition (TCVD) process includes introducing a process gas containing a metal carbonyl precursor in a process chamber and depositing a metal layer on a substrate. The TCVD process utilizes a short residence time for the gaseous species in the processing zone above the substrate to form a low-resistivity metal layer. In one embodiment of the invention, the metal carbonyl precursor can be selected from at least one of W(CO)6, Ni(CO)4, Mo(CO)6, Co2(CO)8, Rh4(CO)12, Re2(CO)10, Cr(CO)6, and Ru3(CO)12 precursors. In another embodiment of the invention, a method is provided for depositing low-resistivity W layers at substrate temperatures below about 500° C., by utilizing a residence time less than about 120 msec.
摘要翻译: 通过热化学气相沉积(TCVD)方法在金属层上沉积金属层的方法包括在处理室中引入含有羰基金属前驱体的工艺气体并在基底上沉积金属层。 TCVD工艺利用在衬底上方的处理区域中的气态物质的短暂停留时间以形成低电阻率金属层。 在本发明的一个实施方案中,金属羰基前体可以选自W(CO)6,Ni(CO)4,Mo(CO)6,Co 2(CO)8,Rh 4(CO)12,Re 2 (CO)10,Cr(CO)6和Ru 3(CO)12前体)。 在本发明的另一个实施例中,提供了一种通过利用小于约120毫秒的停留时间在低于约500℃的衬底温度下沉积低电阻W层的方法。
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12.
公开(公告)号:US20050069641A1
公开(公告)日:2005-03-31
申请号:US10673910
申请日:2003-09-30
申请人: Tsukasa Matsuda , Taro Ikeda , Tatsuo Hatano , Mitsuhiro Tachibana , Hideaki Yamasaki , Gert Leusink , Fenton McFeely , Sandra Malhotra , Andrew Simon , John Yurkas
发明人: Tsukasa Matsuda , Taro Ikeda , Tatsuo Hatano , Mitsuhiro Tachibana , Hideaki Yamasaki , Gert Leusink , Fenton McFeely , Sandra Malhotra , Andrew Simon , John Yurkas
IPC分类号: C23C16/16 , C23C16/44 , C23C16/455 , H01L21/285 , B05D3/02 , C23C16/00
CPC分类号: C23C16/4408 , C23C16/16 , C23C16/45523 , H01L21/28562
摘要: A method for depositing metal layers with good surface morphology using sequential flow deposition includes alternately exposing a substrate in a process chamber to a metal-carbonyl precursor gas and a reducing gas. During exposure with the metal-carbonyl precursor gas, a thin metal layer is deposited on the substrate, and subsequent exposure of the metal layer to the reducing gas aids in the removal of reaction by-products from the metal layer. The metal-carbonyl precursor gas and a reducing gas exposure steps can be repeated until a metal layer with a desired thickness is achieved. The metal-carbonyl precursor can, for example, be selected from W(CO)6, Ni(CO)4, Mo(CO)6, Co2(CO)8, Rh4(CO)12, Re2(CO)10, Cr(CO)6, and Ru3(CO)12.
摘要翻译: 使用顺序流动沉积沉积具有良好表面形态的金属层的方法包括将处理室中的衬底交替地暴露于羰基金属前体气体和还原气体。 在用羰基金属前驱体气体曝光的同时,在基板上沉积薄金属层,随后将金属层暴露于还原气体有助于从金属层除去反应副产物。 可以重复金属羰基前体气体和还原气体暴露步骤,直到达到具有所需厚度的金属层。 金属羰基前体可以例如选自W(CO)6,Ni(CO)4,Mo(CO)6,Co2(CO)8,Rh4(CO)12,Re2(CO) (CO)6和Ru 3(CO)12。
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公开(公告)号:US20050079708A1
公开(公告)日:2005-04-14
申请号:US10673648
申请日:2003-09-30
申请人: Hideaki Yamasaki , Tsukasa Matsuda , Atsushi Gomi , Tatsuo Hatano , Masahito Sugiura , Yumiko Kawano , Gert Leusink , Fenton McFeely , Sandra Malhotra
发明人: Hideaki Yamasaki , Tsukasa Matsuda , Atsushi Gomi , Tatsuo Hatano , Masahito Sugiura , Yumiko Kawano , Gert Leusink , Fenton McFeely , Sandra Malhotra
IPC分类号: C23C16/16 , H01L21/285 , H01L21/768 , H01L21/44
CPC分类号: H01L21/76843 , C23C16/16 , H01L21/28556 , H01L21/76841
摘要: A method for depositing metal layers on semiconductor substrates by a thermal chemical vapor deposition (TCVD) process. The TCVD process utilizes high flow rate of a dilute process gas containing a metal-carbonyl precursor to deposit a metal layer. In one embodiment of the invention, the metal-carbonyl precursor can be selected from at least one of W(CO)6, Ni(CO)4, Mo(CO)6, Co2(CO)8, Rh4(CO)12, Re2(CO)10, Cr(CO)6, and Ru3(CO)12. In another embodiment of the invention, a method is provided for depositing a W layer from a process gas comprising a W(CO)6 precursor at a substrate temperature of about 410° C. and a chamber pressure of about 200 mTorr.
摘要翻译: 一种通过热化学气相沉积(TCVD)工艺在半导体衬底上沉积金属层的方法。 TCVD工艺利用含有羰基金属前体的稀释工艺气体的高流速来沉积金属层。 在本发明的一个实施方案中,羰基金属前体可以选自W(CO)6,Ni(CO)4,Mo(CO)6,Co 2(CO)8,Rh 4(CO)12, Re 2(CO)10,Cr(CO)6和Ru 3(CO)12)。 在本发明的另一个实施方案中,提供了一种方法,用于在约410℃的基底温度和约200mTorr的室压下从包含W(CO)6前体的工艺气体中沉积W层。
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公开(公告)号:US20050069632A1
公开(公告)日:2005-03-31
申请号:US10673646
申请日:2003-09-30
申请人: Hideaki Yamasaki , Tsukasa Matsuda , Atsushi Gomi , Tatsuo Hatano , Mitsuhiro Tachibana , Koumei Matsuzava , Yumiko Kawano , Gert Leusink , Fenton McFeely , Sandra Malhotra , Andrew Simon , John Yurkas
发明人: Hideaki Yamasaki , Tsukasa Matsuda , Atsushi Gomi , Tatsuo Hatano , Mitsuhiro Tachibana , Koumei Matsuzava , Yumiko Kawano , Gert Leusink , Fenton McFeely , Sandra Malhotra , Andrew Simon , John Yurkas
IPC分类号: C23C16/04 , C23C16/16 , C23C16/44 , C23C16/455 , H01L21/285 , H01L21/768 , B05D5/12 , H01L21/4763
CPC分类号: C23C16/45523 , C23C16/045 , C23C16/16 , C23C16/4408 , H01L21/28556 , H01L21/76843 , H01L21/76876 , H01L21/76877
摘要: A method is provided for forming a metal layer on a substrate using an intermittent precursor gas flow process. The method includes exposing the substrate to a reducing gas while exposing the substrate to pulses of a metal-carbonyl precursor gas. The process is carried out until a metal layer with desired thickness is formed on the substrate. The metal layer can be formed on a substrate, or alternately, the metal layer can be formed on a metal nucleation layer.
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公开(公告)号:US08900422B2
公开(公告)日:2014-12-02
申请号:US12921776
申请日:2009-04-17
申请人: Imran Hashim , Indranil De , Tony Chiang , Edward Haywood , Hanhong Chen , Nobi Fuchigami , Pragati Kumar , Sandra Malhotra , Sunil Shanker
发明人: Imran Hashim , Indranil De , Tony Chiang , Edward Haywood , Hanhong Chen , Nobi Fuchigami , Pragati Kumar , Sandra Malhotra , Sunil Shanker
IPC分类号: B05D5/12 , C23C14/34 , H01L49/02 , C23C16/40 , C23C16/455 , H01L21/314 , H01L21/316 , H01L27/108 , H01L21/02
CPC分类号: H01L28/65 , C23C16/405 , C23C16/45529 , C23C16/45531 , H01L21/02697 , H01L21/3141 , H01L21/31604 , H01L27/10852 , H01L28/40
摘要: This disclosure provides (a) methods of making an oxide layer (e.g., a dielectric layer) based on yttrium and titanium, to have a high dielectric constant and low leakage characteristic and (b) related devices and structures. An oxide layer having both yttrium and titanium may be fabricated either as an amorphous oxide or as an alternating series of monolayers. In several embodiments, the oxide is characterized by a yttrium contribution to total metal that is specifically controlled. The oxide layer can be produced as the result of a reactive process, if desired, via either a PVD process or, alternatively, via an atomic layer deposition process that employs specific precursor materials to allow for a common process temperature window for both titanium and yttrium reactions.
摘要翻译: 本公开内容提供(a)制造基于钇和钛的氧化物层(例如,电介质层)的方法,以具有高介电常数和低泄漏特性,以及(b)相关的器件和结构。 具有钇和钛的氧化物层可以制成无定形氧化物或交替的单层系列。 在几个实施方案中,氧化物的特征在于对特定控制的总金属的钇贡献。 如果需要,可以通过PVD工艺或者通过使用特定的前体材料以允许钛和钇的共同工艺温度窗口的原子层沉积工艺,作为反应过程的结果来生产氧化物层 反应。
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公开(公告)号:US08765570B2
公开(公告)日:2014-07-01
申请号:US13494808
申请日:2012-06-12
申请人: Sandra Malhotra , Wim Deweerd , Hiroyuki Ode
发明人: Sandra Malhotra , Wim Deweerd , Hiroyuki Ode
IPC分类号: H01L21/20
CPC分类号: H01L28/56 , H01L27/10852 , H01L28/60 , H01L28/90
摘要: A method for forming a capacitor stack is described. In some embodiments of the present invention, a first dielectric material is formed above a first electrode material. The first electrode material is rigid and has good mechanical strength and serves as a robust frame for the capacitor stack. The first dielectric material is sufficiently thin ( 3 nm) or lightly doped or non-doped so that it crystallizes after subsequent anneal treatments. A second electrode material is formed adjacent to the second dielectric material. The second electrode material has a high work function and a crystal structure that serves to promote the formation of the high k-value crystal structure of the second dielectric material.
摘要翻译: 描述形成电容器堆叠的方法。 在本发明的一些实施例中,第一电介质材料形成在第一电极材料之上。 第一电极材料是刚性的并且具有良好的机械强度并且用作用于电容器叠层的坚固框架。 第一介电材料足够薄(<2nm)或高度掺杂,使得在随后的退火处理之后其保持非晶态。 在第一电介质材料上方形成第二电介质材料。 第二介电材料足够厚(> 3nm)或轻掺杂或未掺杂,使得其在随后的退火处理之后结晶。 与第二电介质材料相邻地形成第二电极材料。 第二电极材料具有高功函数和用于促进形成第二电介质材料的高k值晶体结构的晶体结构。
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公开(公告)号:US08574998B2
公开(公告)日:2013-11-05
申请号:US13311368
申请日:2011-12-05
申请人: Sandra Malhotra , Kenichi Koyanagi , Hiroyuki Ode , Xiangxin Rui , Takashi Arao , Naonori Fujiwara
发明人: Sandra Malhotra , Kenichi Koyanagi , Hiroyuki Ode , Xiangxin Rui , Takashi Arao , Naonori Fujiwara
IPC分类号: H01L21/02
CPC分类号: H01L28/40 , H01G4/1272 , H01G4/306 , H01G4/33 , H01L21/02175 , H01L21/02189 , H01L21/02192 , H01L21/02194 , H01L21/022 , H01L21/0228
摘要: A method for reducing the leakage current in DRAM MIM capacitors comprises forming a multi-layer dielectric stack from an amorphous highly doped material, an amorphous high band gap material, and a lightly or non-doped material. The highly doped material will remain amorphous (
摘要翻译: 用于减少DRAM MIM电容器中的漏电流的方法包括从非晶高掺杂材料,非晶高带隙材料以及轻掺杂或非掺杂材料形成多层电介质叠层。 退火步骤后,高掺杂材料将保持无定形(<30%结晶)。 在退火步骤之后,高带隙材料将保持无定形(<30%结晶)。 在退火步骤之后,轻掺杂或非掺杂材料将变成晶体(> = 30%结晶)。 高带隙材料形成在无定形高掺杂材料和轻掺杂材料和非掺杂材料之间,并提供通过多层电介质叠层的导电的中间屏障。
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公开(公告)号:US08563392B2
公开(公告)日:2013-10-22
申请号:US13310980
申请日:2011-12-05
申请人: Sandra Malhotra , Wim Deweerd , Edward Haywood , Hiroyuki Ode
发明人: Sandra Malhotra , Wim Deweerd , Edward Haywood , Hiroyuki Ode
IPC分类号: H01L21/02
CPC分类号: C23C16/45534 , C23C16/405 , H01L21/28562 , H01L21/32051 , H01L28/60
摘要: In some embodiments of the present invention, methods are developed wherein a gas flow of an electron donating compound (EDC) is introduced in sequence with a precursor pulse and alters the deposition of the precursor material. In some embodiments, the EDC pulse is introduced sequentially with the precursor pulse with a purge step used to remove the non-adsorbed EDC from the process chamber before the precursor is introduced. In some embodiments, the EDC pulse is introduced using a vapor draw technique or a bubbler technique. In some embodiments, the EDC pulse is introduced in the same gas distribution manifold as the precursor pulse. In some embodiments, the EDC pulse is introduced in a separate gas distribution manifold from the precursor pulse.
摘要翻译: 在本发明的一些实施方案中,开发了一种方法,其中给电子化合物(EDC)的气流按前驱脉冲依次导入并改变前体材料的沉积。 在一些实施方案中,EDC脉冲依次与前体脉冲一起引入,其中吹扫步骤用于在引入前体之前从处理室去除未吸附的EDC。 在一些实施例中,使用蒸汽抽吸技术或起泡器技术引入EDC脉冲。 在一些实施例中,EDC脉冲被引入与前驱脉冲相同的气体分配歧管中。 在一些实施例中,EDC脉冲从前驱脉冲引入到单独的气体分配歧管中。
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公开(公告)号:US20130122678A1
公开(公告)日:2013-05-16
申请号:US13294341
申请日:2011-11-11
申请人: Sandra Malhotra , Hanhong Chen , Wim Deweerd , Toshiyuki Hirota , Hiroyuki Ode
发明人: Sandra Malhotra , Hanhong Chen , Wim Deweerd , Toshiyuki Hirota , Hiroyuki Ode
IPC分类号: H01L21/02
CPC分类号: H01L28/60 , C23C16/45534 , H01L21/02175 , H01L21/02178 , H01L21/02186 , H01L21/02189 , H01L21/02194 , H01L21/0228 , H01L27/10852 , H01L28/40 , H01L28/56 , H01L29/4234
摘要: A method for doping a dielectric material by pulsing a first dopant precursor, purging the non-adsorbed precursor, pulsing a second precursor, purging the non-adsorbed precursor, and pulsing a oxidant to form an intermixed layer of two (or more) metal oxide dielectric dopant materials. The method may also be used to form a blocking layer between a bulk dielectric layer and a second electrode layer. The method improves the control of the composition and the control of the uniformity of the dopants throughout the thickness of the doped dielectric material.
摘要翻译: 一种用于通过脉冲第一掺杂剂前体掺杂电介质材料的方法,清洗未吸附的前体,脉冲第二前体,净化未吸附的前体,以及脉冲氧化剂以形成两个(或多个)金属氧化物的混合层 电介质掺杂剂材料。 该方法还可用于在体电介质层和第二电极层之间形成阻挡层。 该方法改善了组合物的控制和掺杂介质材料整个厚度均匀性的控制。
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公开(公告)号:US08440537B1
公开(公告)日:2013-05-14
申请号:US13294341
申请日:2011-11-11
申请人: Sandra Malhotra , Hanhong Chen , Wim Deweerd , Toshiyuki Hirota , Hiroyuki Ode
发明人: Sandra Malhotra , Hanhong Chen , Wim Deweerd , Toshiyuki Hirota , Hiroyuki Ode
IPC分类号: H01L21/20
CPC分类号: H01L28/60 , C23C16/45534 , H01L21/02175 , H01L21/02178 , H01L21/02186 , H01L21/02189 , H01L21/02194 , H01L21/0228 , H01L27/10852 , H01L28/40 , H01L28/56 , H01L29/4234
摘要: A method for doping a dielectric material by pulsing a first dopant precursor, purging the non-adsorbed precursor, pulsing a second precursor, purging the non-adsorbed precursor, and pulsing a oxidant to form an intermixed layer of two (or more) metal oxide dielectric dopant materials. The method may also be used to form a blocking layer between a bulk dielectric layer and a second electrode layer. The method improves the control of the composition and the control of the uniformity of the dopants throughout the thickness of the doped dielectric material.
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