专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明专利

JPH02312241A MANUFACTURE OF SILICON WAFER 失效
公开(公告)号：JPH02312241A
公开(公告)日：1990-12-27
申请号：JP13434389
申请日：1989-05-26
申请人： NIPPON STEEL CORP , NITTETSU DENSHI KK
发明人： SAITO HAJIME , HARADA HIROBUMI , SUZUKI KENICHI , HATANAKA HIROYUKI
IPC分类号： H01L21/322
摘要： PURPOSE:To make a wafer superior in a gettering power and hard in warp at the time of a heat treatment, and to contrive the improvement of the yield of the formation of devices by a method wherein the temperature at a time when the wafer is made to heat up in a stepwise manner in order from a low temperature and a heating-up temperature are rationalized. CONSTITUTION:A silicon wafer is subjected to oxygen out diffusion heat treatment at a temperature of 1000 deg.C or higher. Then, after the wafer is corrected for five hours or more at a temperature region between 550 deg.C and 630 deg.C, it is made to heat up to a temperature of the following stage of a temperature difference of 10 deg.C to 40 deg.C at a heating-up speed less than 0.1 deg.C/minute. A correction is repeated for two hours or more, the wafer is made to heat up in order up to a temperature region of 630 deg.C to 70 deg.C and a multistage treatment is performed by the correction. After that, a high-temperature heat treatment is performed in a temperature range of 950 deg.C to 1100 deg.C. Thereby, even after the wafer goes through a heat treatment for the formation of a device, it has a sufficient gettering power, a wafer hard to swarp is obtained and the yield of the formation of various silicon IC devices can be improved.

32. 发明专利

JPH01194256A CHARGED PARTICLE ANALYZING DEVICE FOR ELIMINATION OF ELECTROSTATIC CHARGING 失效
公开(公告)号：JPH01194256A
公开(公告)日：1989-08-04
申请号：JP1839788
申请日：1988-01-28
申请人： NIPPON STEEL CORP
发明人： HAYASHI SHUNICHI , HASHIGUCHI HIDEHIRO , SUZUKI KENICHI , OTSUBO TAKASHI
IPC分类号： G01N23/22 , G01N21/62 , H01J37/20 , H01J37/244 , H01J37/252
摘要： PURPOSE:To provide a charged particle analyzing device which is applicable both to positive and negative charging and also to the case in which the degree of charging varies during measurement by irradiating the beam of light to a specimen, wherein the light is in a specific wavelength to cancel the charging of the measured part on the surface of specimen including wavelengths longer than the band gap of the specimen substance. CONSTITUTION:During measurement, the light 7 from a light irradiating device 6 for canceling of charging is irradiated to a specimen 1 in order to cancel the charging of the part to be measured. This light for canceling the charging lies within the range 200-2000nm and includes wavelengths corresponding to the energy over the band gap energy of the specimen components. When the light having a higher energy than that corresponding to the band gap of the component concerned is irradiated to the specimen, electrons in the value electron range of specimen atoms are energized to make transfer to the transmission band, and the electrical conductivity is increased, whereby electron transfer between the measured part and inside the specimen becomes easier to accomplish canceling of the charging. The light irradiation to the specimen is made by a monochrometer 18. An optical fiber 19 is used to introduce the light from this monochrometer into analyzer.

33. 发明专利

JPS6360269A HEAT-TREATMENT OF METALLIC TITANIUM 失效
公开(公告)号：JPS6360269A
公开(公告)日：1988-03-16
申请号：JP20379986
申请日：1986-09-01
申请人： NIPPON STEEL CORP
发明人： KONDO MASAYOSHI , SOEDA SEIICHI , NAITO HIROMITSU , SUZUKI KENICHI , HAYASHI MASAYUKI
IPC分类号： C22F1/18 , C22F1/00 , C22F1/02
摘要： PURPOSE:To produce metallic Ti having fine surface luster and superior mechanical properties by heat treating metallic Ti under specified conditions in a high purity nitrogen atmosphere having a specified dew point. CONSTITUTION:Metallic Ti formed into a sheet or a wire rod by cold working is held at about 600-800 deg.C for

34. 发明专利

JPS6360267A HEAT-TREATMENT OF METALLIC TITANIUM 失效
公开(公告)号：JPS6360267A
公开(公告)日：1988-03-16
申请号：JP20379886
申请日：1986-09-01
申请人： NIPPON STEEL CORP
发明人： KONDO MASAYOSHI , SOEDA SEIICHI , NAITO HIROMITSU , SUZUKI KENICHI
IPC分类号： C22F1/18 , C22C14/00 , C22F1/02
摘要： PURPOSE:To produce a metallic Ti material for building materials and ornaments having moderate ductility, high surface hardness and metallic luster by heat treating metallic Ti in a nitrogen atmosphere contg. hydrogen and having a specified dew point. CONSTITUTION:A cold rolled metallic Ti sheet is heat treated by passing through a bright annealing furnace for steel filled with a gaseous AX atmosphere contg. about 75% H2 and about 25% N2 and having

35. 发明专利

JPS58100622A PRODUCTION OF SILICON-MANGANESE HIGH STRENGTH STEEL PLATE HAVING EXCELLENT SUITABILITY TO CHEMICAL CONVERSION 失效
公开(公告)号：JPS58100622A
公开(公告)日：1983-06-15
申请号：JP19630581
申请日：1981-12-08
申请人： NIPPON STEEL CORP
发明人： MAEDA SHIGEYOSHI , ASAI TSUNETOSHI , ARAI SHINICHI , SUZUKI KENICHI
IPC分类号： C22C38/00 , C21D1/76 , C21D6/00 , C21D9/46 , C22C38/60
摘要： PURPOSE:To obtain an Si-Mn high strength steel plate having improved suitability to chemical conversion and paint corrosion resistance by restricting the contents of Si and Mn in steel, adding specific elements for stabilization of carbides and negative catalyst elements and annealing the steel in a specific atmosphere. CONSTITUTION:Elements for stabilization of carbides which are 0.1-1.0% Cr, 0.03-0.20% Ti, 0.03-0.20% V, 0.03-0.20% Nb, and 0.03-0.20% Zr as well as 1 kind components acting as a negative catalyst in deposition of C which are 0.008-0.025% S, 0.008-0.025% Se, 0.008-0.020% B, 0.01-0.20% Sb, 0.01-0.20% Bi, 0.02-0.01% Sn, etc. are added to Si-Mn steel consisting basically of 0.3- 2.0% Si, 0.5-2.0% Mn and 0.1% C. Further, Si and Mn are restricted to 3.0% Si+Mn. Such steel is annealed in an atmosphere controlled to 1vol% concn. of gaseous hydrogen and dew point -60-0 deg.C, whereby the Si-Mn high strength steel plate for automobiles, etc. having excellent suitability to chemical conversion is obtained.

36. 发明专利

JPS5669324A PRODUCING METHOD OF GOOD WORKABLE HOT ROLLING STEEL SLAB 失效
公开(公告)号：JPS5669324A
公开(公告)日：1981-06-10
申请号：JP14633079
申请日：1979-11-12
申请人： NIPPON STEEL CORP
发明人： EZAKA KAZUAKI , ITE YOSHIO , SUZUKI KENICHI , SHIMIZU KUNIHIKO
IPC分类号： B21B3/00 , C21D1/34 , C21D6/00 , C21D7/13 , C21D8/02 , C21D9/00
摘要： PURPOSE:To produce a good workable hot rolling steel plate having very excellent elongation and flanging property and generating no red scale by hot rooling, after heating under a specific extract temperature, steel having no Si added and containing a specific amount of S. CONSTITUTION:Steel slab containing no Si added and % S is hot rolled after heating at >=1,160 deg.C heating extract temperature. Thus, the generation of red scale of steel product having very excellent elongation and flanging property is prevented and a good workable heat rolled steel plate is produced.

37. 发明专利

JPH05223768A DEODORIZATION CAPABILITY EVALUATION METHOD AND DEVICE 失效
公开(公告)号：JPH05223768A
公开(公告)日：1993-08-31
申请号：JP3046692
申请日：1992-02-18
申请人： NIPPON STEEL CORP
发明人： FUJIMOTO CHIAKI , HAYAKAWA YASUHIRO , ONO AKIHIRO , SUZUKI KENICHI
IPC分类号： A61L9/00 , G01N27/00
摘要： PURPOSE:To evaluate the deodorization capability of deodorant quantitatively and continuously. CONSTITUTION:In a test tank 1, a deodorant 9 is placed and one or more than two kinds of odor gas component with a certain amount is injected with stirring the inside gas. The output signals from a more number of semiconductor gas sensors 14 than the number of odor gas components placed in the test tank 1 is continuously received and the concentration change of the odor gas components injected into the test tank 1 is continuously measured by applying the correlation of gas concentration-sensor output which is formed in advance. Thus, the deodorization capability of the deodorant placed in the test tank 1 can be evaluated continuously. Even if more than two kinds of odor gas components coexist, the deodorization capability can be quantitatively and simultaneously evaluated.

38. 发明专利

JPS6448681A MANUFACTURE OF TITANIUM CLAD STEEL 失效
公开(公告)号：JPS6448681A
公开(公告)日：1989-02-23
申请号：JP20340787
申请日：1987-08-18
申请人： NIPPON STEEL CORP
发明人： HASE TAIJI , OGAWA TADAO , SUZUKI KENICHI , NAITO HIROMITSU , KONDO MASAYOSHI , SOEDA SEIICHI
IPC分类号： B23K11/20 , B23K11/06
摘要： PURPOSE:To easily obtain Ti clad steel having an excellent material characteristic at the low cost by interposing extremely low C steel in the joining surface between Ti material and steel as insert material to press and join these by resistance welding and eliminating the need of heat treatment after joining. CONSTITUTION:With laminated assembly material holding an extremely low C steel plate 2 between base metal 3 and a Ti plate 1 of cladding material, while the load is applied between the Ti plate 1 and the base metal 3 by loading mechanisms 6 attached to roller electrodes 4 of a resistance welding machine 7, the roller electrodes 4 are electrified. An electric circuit is formed on 4A-1-2-3-4B-5 and resistance heats are generated on the interface between the Ti plate 1 and the extremely low C steel plate 2 and the interface between the extremely low C steel plate 2 and the base metal 3 and both the interfaces are molten and welded. The resistance welding of a beltlike zone corresponding to width of the roller electrodes 4A and 4B can be performed by rotating the roller electrodes 4A and 4B to carry out it continuously while the load is applied by the loading mechanisms 6.

39. 发明专利

JPS60185142A SPECTROCHEMICAL ANALYSIS METHOD USING GLOW DISCHARGE 失效
公开(公告)号：JPS60185142A
公开(公告)日：1985-09-20
申请号：JP4009684
申请日：1984-03-02
申请人： NIPPON STEEL CORP
发明人： SUZUKI KENICHI , HENMI NAOKI
IPC分类号： G01N21/67
摘要： PURPOSE:To measure the element concentration and the thickness of a surface layer, by measuring the depth profile of the surface layer of a solid by a spectrochemical analysis method usig glow discharge, converting the intensity of light emission into the weight of the element by a light-emitting-intensity integrating method, and converting the sputtering time into the thickness. CONSTITUTION:The depth profile of the surface layer of a solid, which is expressed by the sputtering time and the light emitting intensity of an element, is measured by spectrochemical analysis using glow discharge. The depth profile is divided at every unit time. The integrated quantity of the light emitting intensity of each element within the unit time is converted into the weight for every element, which is sputtered for every unit time, by the expression in the Figure, where Wi is the sputtered weight of each element, Ii is the light emitting intensity of each element, and Ki is the empirically obtained weight conversion coefficient of each element. Based on the sputtered weight, the composition and the thickness at the unit time are determined, and the element concentration and the thickness of the surface layer of the solid are measured.

40. 发明专利

JPS5913148B2 JPS5913148B2 - 失效
公开(公告)号：JPS5913148B2
公开(公告)日：1984-03-28
申请号：JP11389379
申请日：1979-09-04
申请人： Nippon Steel Corp
发明人： SUKAI TETSUYA , SUGANO HIDEO , SUZUKI KENICHI
IPC分类号： H01J49/20 , G01N27/62 , H01J49/26 , H01J49/30
CPC分类号： H01J49/30

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式