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公开(公告)号:US06660647B1
公开(公告)日:2003-12-09
申请号:US09646012
申请日:2001-01-11
申请人: Tetsuo Ono , Takafumi Tokunaga , Tadashi Umezawa , Motohiko Yoshigai , Tatsumi Mizutani , Tokuo Kure , Masayuki Kojima , Takashi Sato , Yasushi Goto
发明人: Tetsuo Ono , Takafumi Tokunaga , Tadashi Umezawa , Motohiko Yoshigai , Tatsumi Mizutani , Tokuo Kure , Masayuki Kojima , Takashi Sato , Yasushi Goto
IPC分类号: H01L2100
CPC分类号: H01J37/32082 , H01L21/32136 , H01L21/32139
摘要: A surface processing method of a sample having a mask layer that does not contain carbon as a major component formed on a substance to be processed, the substance being a metal, semiconductor and insulator deposited on a silicon substrate, includes the steps of installing the sample on a sample board in a vacuum container, generating a plasma that consists of a mixture of halogen gas and adhesive gas inside the vacuum container, applying a radio frequency bias voltage having a frequency ranging from 200 kHz to 20 MHz on the sample board, and controlling a periodic on-off of the radio frequency bias voltage with an on-off control frequency ranging from 100 Hz to 10 kHz.
摘要翻译: 具有在被处理物质上形成的不含有碳作为主要成分的掩模层的样品的表面处理方法,该物质是沉积在硅基板上的金属,半导体和绝缘体,该物质包括如下步骤: 在真空容器中的样品板上,在真空容器内产生由卤素气体和粘合气体的混合物构成的等离子体,在样品板上施加频率范围为200kHz〜20MHz的射频偏置电压, 以从100Hz到10kHz的开关控制频率来控制射频偏置电压的周期性的断开。
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公开(公告)号:US5554257A
公开(公告)日:1996-09-10
申请号:US270839
申请日:1994-07-05
IPC分类号: C23F4/02 , C23C16/44 , C23C16/448 , C23C16/455 , H01L21/203 , H01L21/302 , H01L21/304 , H01L21/306 , H01L21/00
CPC分类号: C23C16/4551 , C23C16/448 , H01L21/02046 , H01L21/02381 , H01L21/02661
摘要: A molecular or atomic beam for cleaning or etching semiconductor substrates, or for forming a thin film on a semiconductor substrate is formed by generating a chemical reaction between at least two gases introduced into a reaction chamber. The products of the chemical reaction, and optionally additional atoms or molecules introduced into the reaction chamber, pass through an aperture to form a beam that is projected onto a sample supported in a sample chamber. The translation energy generated by the chemical reaction accelerates the atoms, molecules and/or particles to a high speed to enable cleaning, etching or depositing processes to be formed with the beam without damaging the surface of the substrate being treated.
摘要翻译: 用于清洁或蚀刻半导体衬底或用于在半导体衬底上形成薄膜的分子或原子束通过在引入到反应室中的至少两种气体之间产生化学反应而形成。 引入到反应室中的化学反应产物和任选的另外的原子或分子通过一个孔,形成一个投影到样品室中的样品上的光束。 由化学反应产生的翻译能量使原子,分子和/或颗粒高速加速,从而能够清洗,蚀刻或沉积与光束形成的工艺,而不会损坏正被处理的衬底的表面。
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公开(公告)号:US5284544A
公开(公告)日:1994-02-08
申请号:US599018
申请日:1990-10-17
申请人: Tatsumi Mizutani , Takashi Yunogami
发明人: Tatsumi Mizutani , Takashi Yunogami
IPC分类号: H01L21/302 , H01J37/32 , H01L21/205 , H01L21/3065 , H01L21/00
CPC分类号: H01J37/32357
摘要: An apparatus for surface treatment according to the present invention used for carrying out dry etching, thin film deposition and so forth is provided with a neutral beam etching apparatus in order to improve etching rate. In an embodiment, microwave wave-guides forming a duplex tube, a discharge tube, a pair of solenoids arranged coaxially, a multiaperture electrode for extracting an ion beam, gas supply pipes, a set of charged particle retarding grids, a device for controlling temperature of a specimen and a vacuum unit are provided.
摘要翻译: 用于进行干蚀刻,薄膜沉积等的根据本发明的用于表面处理的设备设置有中性束蚀刻装置,以提高蚀刻速率。 在一个实施例中,形成双相管,放电管,同轴布置的一对螺线管的微波波导,用于提取离子束的多孔电极,气体供给管,一组带电粒子延迟栅,用于控制温度的装置 的试样和真空装置。
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公开(公告)号:US4412119A
公开(公告)日:1983-10-25
申请号:US260813
申请日:1981-05-05
申请人: Hideo Komatsu , Shinya Iida , Tatsumi Mizutani , Kazuyoshi Ueki
发明人: Hideo Komatsu , Shinya Iida , Tatsumi Mizutani , Kazuyoshi Ueki
IPC分类号: H01L21/302 , C23F4/00 , H01L21/3065 , H01L21/311 , H01L21/3213 , H01L21/306
CPC分类号: H01L21/32136 , C23F4/00 , H01L21/3065 , H01L21/31116 , H01L21/32137
摘要: A dry-etching method for working SiO.sub.2, phospho-silicate glass, Si, Mo, W, Cr, TiW, Si.sub.3 N.sub.4 or the like by the use of a glow discharge plasma involves the steps of introducing He, Ar, N.sub.2, O.sub.2 or a mixed gas thereof into a reaction chamber from the outside; and effecting the plasma discharge in the reaction chamber so that a reactive gas is liberated from a high molecular resin material arranged in the reaction chamber and containing fluorine atoms. The dry-etching method requires and uses no expensive gas containing a fluorocarbon, but has sufficient etching rate and selectivity.
摘要翻译: 通过使用辉光放电等离子体,对SiO 2,磷硅酸盐玻璃,Si,Mo,W,Cr,TiW,Si 3 N 4等进行加工的干式蚀刻方法包括引入He,Ar,N 2,O 2或 其混合气体从外部进入反应室; 并且在反应室中进行等离子体放电,使得反应气体从布置在反应室中的含有氟原子的高分子树脂材料释放出来。 干蚀刻方法需要并且不使用含有碳氟化合物的昂贵的气体,但是具有足够的蚀刻速率和选择性。
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公开(公告)号:US4308089A
公开(公告)日:1981-12-29
申请号:US148283
申请日:1980-05-09
申请人: Shinya Iida , Kazuyoshi Ueki , Tatsumi Mizutani , Hideo Komatsu , Kado Hirobe
发明人: Shinya Iida , Kazuyoshi Ueki , Tatsumi Mizutani , Hideo Komatsu , Kado Hirobe
IPC分类号: C23F4/00 , C23F15/00 , H01L21/02 , H01L21/3205 , H01L21/321 , H01L21/3213 , H01L23/52 , C23F1/02 , C23C15/00 , C23G1/02
CPC分类号: H01L21/02071 , C23F4/00 , H01L21/321
摘要: Disclosed is a method for preventing corrosion of Al and Al alloys processed by the dry-etching method, which comprises (i) the step of sputtering Al or Al alloy in an ammonia-containing atmosphere and (ii) the step of washing the sputtered Al or Al alloy with an alkaline aqueous solution and then with water after termination of the step (i).According to this method, corrosion of Al or Al alloy by halogen element-containing substances stuck to Al or Al alloy during the dry-etching treatment can be effectively prevented.
摘要翻译: 本发明公开了一种防腐蚀方法,该方法包括:(i)在含氨气氛中溅射Al或Al合金的步骤,以及(ii)将溅射的Al 或Al合金与碱性水溶液反应,然后在步骤(i)终止后与水合并。 根据该方法,可以有效地防止在干法蚀刻处理中在Al或Al合金上粘附含卤素元素的Al或Al合金的腐蚀。
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公开(公告)号:US4289188A
公开(公告)日:1981-09-15
申请号:US150939
申请日:1980-05-19
申请人: Tatsumi Mizutani , Kazuyoshi Ueki , Shinya Iida , Hideo Komatsu
发明人: Tatsumi Mizutani , Kazuyoshi Ueki , Shinya Iida , Hideo Komatsu
IPC分类号: C23F4/00 , H01J37/32 , H01L21/302 , H01L21/3065 , H01L21/306 , C23F1/00
CPC分类号: H01L21/32136 , C23F4/00 , H01J37/32935 , H01L21/02019
摘要: Method and apparatus for monitoring a dry etching process using gas plasma, wherein a ratio of a spectrum intensity which varies depending on the process of the etching process to a spectrum intensity which is independent of the process of the etching process is determined and a resulting signal intensity is monitored. The completion of the etching process can be exactly determined irrespective of variation of the etching conditions.
摘要翻译: 用于使用气体等离子体监测干蚀刻工艺的方法和装置,其中确定根据蚀刻工艺的过程而变化的光谱强度与不同于蚀刻工艺的工艺的光谱强度的比率,并且得到所得到的信号 监测强度。 蚀刻工艺的完成可以精确地确定,而与蚀刻条件的变化无关。
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公开(公告)号:USRE39895E1
公开(公告)日:2007-10-23
申请号:US10094157
申请日:2002-03-08
申请人: Takafumi Tokunaga , Sadayuki Okudaira , Tatsumi Mizutani , Kazutami Tago , Hideyuki Kazumi , Ken Yoshioka
发明人: Takafumi Tokunaga , Sadayuki Okudaira , Tatsumi Mizutani , Kazutami Tago , Hideyuki Kazumi , Ken Yoshioka
IPC分类号: H01L21/00
CPC分类号: H01L21/76802 , H01L21/31116
摘要: To realize etching with a high selection ratio and a high accuracy in fabrication of an LSI, the composition of dissociated species of a reaction gas is accurately controlled when dry-etching a thin film on a semiconductor substrate by causing an inert gas excited to a metastable state in a plasma and a flon gas to interact with each other and selectively obtaining desired dissociated species.
摘要翻译: 为了在LSI的制造中以高选择率和高精度实现蚀刻,当通过使惰性气体激发成亚稳态来干法蚀刻半导体衬底上的薄膜时,反应气体的解离物质的组成被精确地控制 状态在等离子体和氟里昂气体中彼此相互作用并选择性地获得期望的解离物种。
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公开(公告)号:US07259104B2
公开(公告)日:2007-08-21
申请号:US10671608
申请日:2003-09-29
申请人: Tetsuo Ono , Takafumi Tokunaga , Tadashi Umezawa , Motohiko Yoshigai , Tatsumi Mizutani , Tokuo Kure , Masayuki Kojima , Takashi Sato , Yasushi Goto
发明人: Tetsuo Ono , Takafumi Tokunaga , Tadashi Umezawa , Motohiko Yoshigai , Tatsumi Mizutani , Tokuo Kure , Masayuki Kojima , Takashi Sato , Yasushi Goto
IPC分类号: H01L21/302 , B44C1/22
CPC分类号: H01J37/32082 , H01L21/32136 , H01L21/32139
摘要: A surface processing method of a sample having a mask layer that does not contain carbon as a major component formed on a substance to be processed, the substance being a metal, semiconductor and insulator deposited on a silicon substrate, includes the steps of installing the sample on a sample board in a vacuum container, generating a plasma that consists of a mixture of halogen gas and adhesive gas inside the vacuum container, applying a radio frequency bias voltage having a frequency ranging from 200 kHz to 20 MHz on the sample board, and controlling a periodic on-off of the radio frequency bias voltage with an on-off control frequency ranging from 100 Hz to 10 kHz.
摘要翻译: 具有在被处理物质上形成的不含有碳作为主要成分的掩模层的样品的表面处理方法,该物质是沉积在硅基板上的金属,半导体和绝缘体,该物质包括如下步骤: 在真空容器中的样品板上,在真空容器内产生由卤素气体和粘合气体的混合物构成的等离子体,在样品板上施加频率范围为200kHz〜20MHz的射频偏置电压, 以从100Hz到10kHz的开关控制频率来控制射频偏置电压的周期性的断开。
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公开(公告)号:US06849191B2
公开(公告)日:2005-02-01
申请号:US09249292
申请日:1999-02-12
申请人: Tetsuo Ono , Tatsumi Mizutani , Ryouji Hamasaki , Tokuo Kure , Takafumi Tokunaga , Masayuki Kojima
发明人: Tetsuo Ono , Tatsumi Mizutani , Ryouji Hamasaki , Tokuo Kure , Takafumi Tokunaga , Masayuki Kojima
IPC分类号: C23F4/00 , H01L21/3213 , H01L21/00
CPC分类号: H01J37/32137 , C23F4/00 , H01J37/32706 , H01L21/32137
摘要: According to the present invention, there is provided a sample surface treating apparatus for processing a fine pattern by plasma etching, including a stage provided in a chamber, on which a sample to be subjected to a surface treatment is placed; etching gas supply source for continuously supplying an etching gas for plasma generation into the chamber; a plasma generator for generating a high-density plasma in the chamber; a bias power supply for applying a bias voltage of 100 kHz or higher to the stage independently of the plasma generation; and a pulse modulator for modulating the bias power supply at a frequency of 100 Hz to 10 kHz, wherein a surface treatment in which the minimum feature size is 1 μm or smaller is performed on the sample placed on the stage.
摘要翻译: 根据本发明,提供了一种用于通过等离子体蚀刻处理精细图案的样品表面处理装置,包括设置在其中放置待进行表面处理的样品的室中的台阶; 蚀刻气体供给源,用于将用于等离子体产生的蚀刻气体连续地供应到所述室中; 用于在所述室中产生高密度等离子体的等离子体发生器; 偏置电源,用于独立于等离子体产生而向所述载台施加100kHz或更高的偏置电压; 以及用于以100Hz至10kHz的频率调制偏置电源的脉冲调制器,其中对放置在载物台上的样品执行最小特征尺寸为1um或更小的表面处理。
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公开(公告)号:US06074958A
公开(公告)日:2000-06-13
申请号:US339041
申请日:1999-06-23
申请人: Takafumi Tokunaga , Sadayuki Okudaira , Tatsumi Mizutani , Kazutami Tago , Hideyuki Kazumi , Ken Yoshioka
发明人: Takafumi Tokunaga , Sadayuki Okudaira , Tatsumi Mizutani , Kazutami Tago , Hideyuki Kazumi , Ken Yoshioka
IPC分类号: H01L21/302 , H01L21/3065 , H01L21/311 , H01L21/70 , H01L21/768 , H01L21/77 , H01L21/00
CPC分类号: H01L21/31116 , H01L21/76802
摘要: To realize etching with a high selection ratio and a high accuracy in fabrication of an LSI, the composition of dissociated species of a reaction gas is accurately controlled when dry-etching a thin film on a semiconductor substrate by causing an inert gas excited to a metastable state in a plasma and a flon gas to interact with each other and selectively obtaining desired dissociated species.
摘要翻译: 为了在LSI的制造中以高选择率和高精度实现蚀刻,当通过使惰性气体激发成亚稳态来干法蚀刻半导体衬底上的薄膜时,反应气体的解离物质的组成被精确地控制 状态在等离子体和氟里昂气体中彼此相互作用并选择性地获得期望的解离物种。
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