Silicon Containing Patents (Class 204/192.23)
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Patent number: 6325901Abstract: At least an effective region of the face of a panel of a cathode ray tube is held within a vacuum chamber. After the vacuum chamber is hermetically sealed from the outside of the vacuum chamber, a thin film is formed on the face of the panel by using a film-forming means.Type: GrantFiled: October 19, 1998Date of Patent: December 4, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Kazumasa Hirayama, Hitoshi Takeda, Hisashi Iijima, Takeo Ito, Sakae Kimura, Hisashi Chigusa, Yoshimitsu Aramaki
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Patent number: 6322881Abstract: A glazing assembly is provided made of at least one transparent substrate having a stack thereon that includes an alternation of n functional layers and n-1 coatings, wherein the functional layers have reflection properties in the infrared and/or solar radiation and where n≳1 and where, in order to maintain the quality of the stack when the substrate is subjected to a heat treatment step, at least one of the following must be satisfied: the coating placed on top of at least one of the functional layers includes at least one barrier layer providing a barrier to at least oxygen and water; and at least one absorbent or stabilizing layer made of a material capable of absorbing or stabilizing the consituent material of the functional layer forms a part of either the coating placed on top of the functional layer and under the barrier layer or the coating placed beneath the functional layer; and a method for production of the glazing assembly.Type: GrantFiled: February 29, 2000Date of Patent: November 27, 2001Assignee: Saint-Gobain VitrageInventors: Philippe Boire, Fabrice Didier, Jean-Michel Grimal
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Patent number: 6287430Abstract: The present invention is drawn to an apparatus for forming a thin film. The apparatus includes a vacuum chamber; a vacuum apparatus connected to the vacuum chamber; a holder placed in the vacuum chamber, which holder holds a substrate and is rotated by means of a rotating mechanism; a plasma CVD apparatus; and a sputtering apparatus, wherein the plasma CVD apparatus and the sputtering apparatus are placed in a single vacuum chamber and a thin film having an medium refractive index is formed on the substrate held by the holder, by means of the plasma CVD apparatus and the sputtering apparatus. The method making use of such an apparatus is also disclosed.Type: GrantFiled: December 21, 1999Date of Patent: September 11, 2001Assignee: Shincron Co., Ltd.Inventors: Shigeharu Matsumoto, Kazuo Kikuchi, Yizhou Song, Takeshi Sakurai, Shinichiro Saisho
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Publication number: 20010016262Abstract: A silicon target material is sputtered in a vacuum chamber having a controlled vacuum atmosphere in a reactive sputtering gas containing oxygen and nitrogen while varying the composition of the sputtering gas during the sputtering to thereby form a coating having a refractive index gradient due to a composition gradient in the thickness direction thereof on the substrate. The coating reduces the surface reflectance of glass to one-twentieth in a wavelength region of from 450 to 650 nm.Type: ApplicationFiled: January 4, 2001Publication date: August 23, 2001Inventors: Takayuki Toyoshima, Toshiaki Anzaki
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Patent number: 6274007Abstract: A process for controllably forming silicon nanostructures such as a silicon quantum wire array. A silicon surface is sputtered by a uniform flow of nitrogen molecular ions in an ultrahigh vacuum so as to form a periodic wave-like relief in which the troughs of said relief are level with the silicon-insulator border of the SOI material. The ion energy, the ion incidence angle to the surface of said material, the temperature of the silicon layer, the formation depth of the wave-like relief, the height of said wave-like relief and the ion penetration range into silicon are all determined on the basis of a selected wavelength of the wave-like relief in the range 9 nm to 120 nm. A silicon nitride mask having pendant edges is used to define the area of the silicon surface on which the array is formed. Impurities are removed from the silicon surface within the mask window prior to sputtering.Type: GrantFiled: March 14, 2000Date of Patent: August 14, 2001Assignee: Sceptre Electronics LimitedInventors: Valery K Smirnov, Dmitri S Kibalov
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Publication number: 20010008206Abstract: Silicon-chromium cathode targets comprising 5 to 80 weight percent chromium are disclosed for sputtering absorbing coatings of silicon-chromium alloy in atmospheres comprising inert gas, reactive gases such as nitrogen, oxygen, and mixtures thereof which may further comprise inert gas, such as argon, to form nitrides, oxides, and oxynitrides as well as metallic films. The presence of chromium in the cathode target in the range of 5 to 80 weight percent provides target stability and enhanced sputtering rates over targets of silicon alone, comparable to the target stability and sputtering rates of silicon-nickel, not only when sputtering in oxygen to produce an oxide coating, but also when sputtering in inert gas, nitrogen or a mixture of nitrogen and oxygen to produce coatings of silicon-chromium, silicon-chromium nitride or silicon-chromium oxynitride respectively.Type: ApplicationFiled: September 8, 1997Publication date: July 19, 2001Inventor: JAMES J FINLEY
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Patent number: 6251795Abstract: A method of forming a self-planarized HDPCVD oxide layer over a substrate having uneven topography in a process chamber is disclosed. The method comprising the steps of: depositing HDPCVD oxide over said uneven topography; and performing a sputter-only step in said process chamber.Type: GrantFiled: April 8, 1999Date of Patent: June 26, 2001Assignee: WaferTech, L.L.C.Inventors: Jesse C. Shan, Chang-Kuei Huang, Steve H. Y. Yang
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Patent number: 6251231Abstract: A magneto-resistive (MR) head having a read element including two magnetic shield films, two magnetic gap films which separate the two magnetic shield films and which are held between the two magnetic shield films, and an MR element held between the two magnetic gap films, with the two magnetic gap films having a stress value of up to 200 MPa.Type: GrantFiled: April 5, 2000Date of Patent: June 26, 2001Assignee: NEC CorporationInventors: Mikiko Saito, Fujio Suzuki
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Patent number: 6241859Abstract: The present invention provides a method of forming a silicide layer on a silicon region. The method comprises the following steps. A first refractory metal layer is formed on the silicon region. The first refractory metal layer is made of a first refractory metal. A second refractory metal layer is formed on the first refractory metal layer. The second refractory metal layer is made of a second refractory metal and containing nitrogen. The second refractory metal layer has a film stress of not higher than 1×1010 dyne/cm2. A heat treatment is carried out in a first atmosphere substantially free of nitrogen so as to cause a silicidation of a lower region of the first refractory metal layer, whereby a C49-structured refractory metal silicide layer is formed on the silicon region.Type: GrantFiled: August 24, 1998Date of Patent: June 5, 2001Assignee: NEC CorporationInventors: Yoshiaki Yamada, Yoshihisa Matsubara, Takashi Ishigami
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Patent number: 6242085Abstract: An underlying layer is formed of Cr or the like on a glass substrate, and a magnetic layer is formed on the underlying layer by simultaneously sputtering a magnetic substance and a non-magnetic substance that does not form a solid solution with the magnetic substance in an atmosphere having a pressure of 30 mTorr to 75 mTorr. The magnetic recording medium comprises clusters, each of which is formed of aggregated magnetic grains, and a non-magnetic substance between the clusters. Each magnetic grain has a grain diameter of 5 nm to 20 nm. An average gap between the clusters is 1.5 nm to 5 nm. Thus, the present invention can provide a magnetic recording medium having a high S/N ratio that is suitable for high density recording.Type: GrantFiled: September 15, 1998Date of Patent: June 5, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Ryonai, Tatsuaki Ishida, Kiyokazu Tohma, Keizou Miyata, Taizou Hamada
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Patent number: 6238527Abstract: A film forming apparatus for forming a minute thin film at a high depositing rate, which comprises a substrate holding means for holding a substrate, a target holding means for holding a target, a gas supply means for supplying a sputtering gas for sputtering the target into a reaction chamber, and an electric power supply means for supplying an electric power for causing an electric discharge between the target and the substrate, wherein a partition member having a plurality of openings provided between the target and the substrate, and wherein means for supplying a reaction gas and a microwave are provided in a space between the partition member and the substrate.Type: GrantFiled: September 30, 1998Date of Patent: May 29, 2001Assignee: Canon Kabushiki KaishaInventors: Kazuho Sone, Nobumasa Suzuki
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Patent number: 6217723Abstract: In a method of manufacturing a multilayer film consisting of a stack of primary soft-magnetic layers and secondary non-magnetic layers on a substrate by way of reactive sputtering, use is made of one type of target at least as regards composition for alternately depositing a primary and a secondary layer, which target is particularly made of an FeHf alloy. For performing a sputtering process, use is preferably made of a gas mixture of Ar and O2 in which the quantity of O2 in the gas mixture is controllable and is smaller for sputtering the soft-magnetic layers than for sputtering the non-magnetic layers.Type: GrantFiled: May 27, 1999Date of Patent: April 17, 2001Assignee: U.S. Philips CorporationInventors: Pascal J. H. Bloemen, Wilco Klaassens
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Patent number: 6217969Abstract: A sputtering target disk is provided which is comprised of a sintered silicon carbide having a density of 2.9 g/cm3 or more and obtained by sintering a uniform mixture of a powder of silicon carbide and a nonmetallic auxiliary sintering agent. The sputtering target disk is advantageously used in a sputtering treatment to form thin films with high purity which are suitable for use in various parts of electronic devices. The sputtering target disk exhibits excellent mechanical properties, electric properties, and durability against uneven wear.Type: GrantFiled: August 21, 1998Date of Patent: April 17, 2001Assignee: Bridgestone CorporationInventors: Yoshitomo Takahashi, Hiroaki Wada, Akira Satou
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Patent number: 6214177Abstract: A method of producing a silicon aluminum sputtering target is provided. The target is formed from a powder base of between about 80% to about 95% by weight silicon and about 5% to about 20% by weight aluminum which is placed in a containment unit, heated under vacuum and then sealed. The base is then subjected to a pressure greater than about 3000 psi and heated to a temperature between about 1076° F. and about 1652° F. such that some, but not more than 30%, of the resulting target is formed from liquid phase silicon-aluminum.Type: GrantFiled: December 22, 1999Date of Patent: April 10, 2001Assignee: Ultraclad CorporationInventor: Joseph C. Runkle
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Patent number: 6197471Abstract: A new photoreceptor is provided which comprises a conductive substrate and a photoconductive layer of 5 micra or less in thickness on the substrate. The photoreceptor has a dark decay greater than 20 seconds and contains less than 5% total hydrogen. The substrate is selected from the group consisting of alloys of aluminum, chromium, iron, molybdenum, nickel or tungsten. In addition, the substrate can be a nonconductive material, such as plastic, provided with an electrically conductive layer. A new method for making the improved photoreceptor comprises providing a conductive substrate and forming a photoconductive layer of 5 micra or less in thickness on said substrate by depositing an amorphous material containing silicon and hydrogen atoms wherein said substrate has a negative potential between −40 and −100 volts during the forming of said layer.Type: GrantFiled: March 25, 1998Date of Patent: March 6, 2001Assignee: Coulter International Corp.Inventors: Marshall Donnie Graham, Gary L. Dorer
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Patent number: 6187151Abstract: A method of in-situ cleaning and deposition of device structures in a high density plasma environment. A device structure is located in a reaction chamber containing a sputter target. An ion containing gas located in the reaction chamber is exposed to an RF voltage to generate a high density plasma containing ionized gas particles. The ionized gas particles are accelerated toward the device structure during a cleaning phase. By-products produced during the cleaning phase are either evacuated from the reaction chamber or platted to the chamber walls. Ionized gas particles are then accelerated toward the sputter target during a deposition phase so that a layer of the sputter target material is deposited on at least a portion of the device structure.Type: GrantFiled: January 2, 1997Date of Patent: February 13, 2001Assignee: Micron Technology, Inc.Inventor: Shane P. Leiphart
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Patent number: 6184158Abstract: A method of depositing a dielectric film on a substrate in a process chamber of an inductively coupled plasma-enhanced chemical vapor deposition reactor. Gap filling between electrically conductive lines on a semiconductor substrate and depositing a cap layer are achieved. Films having significantly improved physical characteristics including reduced film stress are produced by heating the substrate holder on which the substrate is positioned in the process chamber.Type: GrantFiled: December 23, 1996Date of Patent: February 6, 2001Assignee: Lam Research CorporationInventors: Paul Kevin Shufflebotham, Brian McMillin, Alex Demos, Huong Nguyen, Butch Berney, Monique Ben-Dor
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Patent number: 6180185Abstract: An apparatus for forming a film on a substrate includes a gas inlet and an insert attached to the gas inlet, the insert including a deposition source material such as lithium. To form the film on the substrate, the substrate is mounted in a vacuum chamber. After the vacuum chamber is pumped down to a subatmospheric pressure, a first process gas such as argon is provided through the gas inlet and insert and into a plasma region proximate the substrate. Power is then coupled to generate a plasma inside of the insert which heats the insert and causes the deposition source material to vaporize. The deposition source material vapor is mixed with a plasma polymerizable material in the plasma region proximate the substrate causing a plasma enhanced chemical vapor deposition (PECVD) thin film such as silicon oxide including the deposition source material (e.g. lithium) to be deposited on the substrate.Type: GrantFiled: November 30, 1999Date of Patent: January 30, 2001Inventor: John T. Felts
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Patent number: 6177142Abstract: An apparatus for forming a film on a substrate includes a gas inlet and an insert attached to the gas inlet, the insert including a deposition source material such as lithium. To form the film on the substrate, the substrate is mounted in a vacuum chamber. After the vacuum chamber is pumped down to a subatmospheric pressure, a first process gas such as argon is provided through the gas inlet and insert and into a plasma region proximate the substrate. Power is then coupled to generate a plasma inside of the insert which heats the insert and causes the deposition source material to vaporize. The deposition source material vapor is mixed with a plasma polymerizable material in the plasma region proximate the substrate causing a plasma enhanced chemical vapor deposition (PECVD) thin film such as silicon oxide including the deposition source material (e.g. lithium) to be deposited on the substrate.Type: GrantFiled: June 2, 1999Date of Patent: January 23, 2001Inventor: John T. Felts
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Patent number: 6177302Abstract: A method of manufacturing thin film field effect transistors is described. The channel region of the transistors is formed by depositing an amorphous semiconductor film in a first sputtering apparatus followed by thermal treatment for converting the amorphous phase to a polycrystalline phase. The gate insulating film is formed by depositing an oxide film in a second sputtering apparatus connected to the first apparatus through a gate valve. The sputtering for the deposition of the amorphous semiconductor film is carried out in an atmosphere comprising hydrogen in order to introduce hydrogen into the amorphous semiconductor film. On the other hand the gate insulating oxide film is deposited by sputtering in an atmosphere comprising oxygen.Type: GrantFiled: September 22, 1994Date of Patent: January 23, 2001Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hongyong Zhang, Takashi Inushima, Takeshi Fukada
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Patent number: 6171454Abstract: Described is a method for coating surfaces using a facility having sputtering electrodes, which has at least two electrodes that are spaced apart from one another and arranged inside a process chamber, and an inlet for a process gas. The two sputtering electrodes are acted upon by a bipolarly pulsed voltage in such a way that they are alternately operated as cathodes and as anodes. In addition, the frequency of the voltage is set between 1 kHz and 1 MHz. Furthermore, and that the operating parameters are selected in such a way that in operation, the electrodes are at least partially covered by a coating material.Type: GrantFiled: September 16, 1999Date of Patent: January 9, 2001Assignee: Robert Bosch GmbHInventors: Thomas Weber, Johannes Voigt, Susanne Lucas
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Patent number: 6171456Abstract: The present invention relates to post manufacturing operations for improving the working life of known bonding tools such as capillaries, wedges and single point TAB tools of the type used in the semiconductor industry to make fine wire or TAB finger interconnections. After the desired bonding tool is manufactured to predetermined specifications, dimensions and tolerances, it is placed in a sputtering chamber with hard target material with an ionizing gas. A controlled volume of sputtered hard material is generated at high temperature by plasma ion bombardment and deposited onto the working face of the bonding tool while the tool is held at a temperature that prevents distortion. A very thin amorphous hard layer is bonded onto the working face of the bonding tool which increases the working life of most tools by an order of magnitude and there is no requirement for additional processing.Type: GrantFiled: August 2, 1999Date of Patent: January 9, 2001Assignee: Kulicke and Soffa Industries Inc.Inventors: Ilan Hadar, Beni Sonnenreich
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Patent number: 6171457Abstract: In the method of fabricating a CRT including a sputtering method for forming an anti-static layer and a spin-coating or spray-coating method for forming an anti-reflection layer on a CRT panel, a method of fabricating a low-resistance, anti-reflection CRT is characterized by applying a silicon oxide (SiO2) coating between the anti-static layer and the anti-reflection layer by a sputtering method. As a result, the CRT has enhanced strength of layers and a low surface resistance. Also, the screen is provided with a charge protection function in the surface, with reflectivity of an external light being mitigated. As a result, it is possible to enhance the contrast characteristics of the screen, to avoid leaving fingerprints on the screen, and also to eliminate unpleasant feeling of static electricity.Type: GrantFiled: June 24, 1998Date of Patent: January 9, 2001Assignee: LG Electronics, Inc.Inventor: Yeoung-Ku Kim