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1.发明授权Multiple anodization scheme for producing gaas layers of nonuniform thickness 失效用于生产非均匀厚度的GAAS层的多个阳离子化方案
公开(公告)号：US3859178A
公开(公告)日：1975-01-07
申请号：US43428674
申请日：1974-01-17
Applicant: BELL TELEPHONE LABOR INC
Inventor： LOGAN RALPH ANDRE , MILLER BARRY IRWIN
CPC classification number: H01S5/227 , C25D11/32 , H01S5/2275 , Y10S148/051 , Y10S148/056 , Y10S148/072 , Y10S148/106 , Y10S148/107 , Y10S148/117 , Y10S148/118 , Y10S148/145
Abstract: A multiple anodization technique is described for producing GaAs layers of nonuniform thickness; that is, GaAs layers having substantially rectangular steps or grooves of the type capable of guiding light. The technique includes the following steps: (1) growing a native oxide layer on a major surface of the GaAs layer by submersing the GaAs layer in an anodization bath of concentrated H2O2 having a pH less than 6; (2) removing selected portions of the oxide layer so as to expose the GaAs layer adjacent to the desired step region; and (3) immersing the surface again in an anodization bath of concentrated H2O2 having a pH less than 6. Also described are techniques for growing by liquid phase epitaxy an AlGaAs layer over the resultant GaAs step structure in a manner which alleviates two problems: the formation of deleterious oxides on the GaAs layer and the dissolving of the step configuration while in contact with the AlGaAs growth solution.
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公开(公告)号：US3852172A
公开(公告)日：1974-12-03
申请号：US26079672
申请日：1972-06-08
Applicant: OLIVETTI & CO SPA
Inventor： GUGLIEMI N , VITTONE S , ROLANDO G
Abstract: The surface oxidation process of the zinc or of a zinc coating consists of immersion of the zinc in an electrolytic cell, where a direct current of selected magnitude is driven and where the electrolytic bath consists essentially of a solution in an alkali metal nitrate melted mixture either of an hexavalent oxide of the type XO3 or of a salt of the type Y2XO4 or of a salt of the type Y2Cr2O7, where X represents an element selected in the group of chromium molybdenum and tungstenum and Y an element selected between sodium and potassium. When solution of hexavalent chrome CrH3 in a mixture of melted alkali metal nitrates is used as bath, the oxidizing process can be carried out without current in the cell, by mere immersion of the zinc.
Abstract translation: 锌或锌涂层的表面氧化过程包括将锌浸入电解池中，其中驱动所选量级的直流电，并且其中电解浴基本上由碱金属硝酸盐熔融混合物中的溶液组成， 的XO 3型或Y2XO4型盐或Y2Cr2O7型盐的六价氧化物，其中X表示选自铬钼和钨的组元素，Y表示选自钠和钾之间的元素。 当将熔融的碱金属硝酸盐的混合物中的六价铬CrH 3溶液用作浴时，可以通过仅浸渍锌而在电池中无电流进行氧化处理。
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公开(公告)号：US3664931A
公开(公告)日：1972-05-23
申请号：US3664931D
申请日：1970-07-27
Applicant: DIETER GERSTENBERG
Inventor： GERSTENBERG DIETER
CPC classification number: C23C14/0036
Abstract: Thin film capacitors including a dielectric layer obtained by anodizing a layer obtained by sputtering a film-forming metal in a nitrogen or carbon containing ambient at partial pressures ranging from 10 3 to 10 5 torr. manifest marked improvement with regard to initial leakage and life test failure as compared with conventional prior art capacitors.
Abstract translation: 薄膜电容器包括通过阳极氧化通过在氮气或含碳环境中以10 -3至10 -5托的分压溅射成膜金属获得的层获得的电介质层。 与常规现有技术的电容器相比，在初始泄漏和寿命测试故障方面显示出明显的改进。
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公开(公告)号：US3625844A
公开(公告)日：1971-12-07
申请号：US3625844D
申请日：1969-06-05
Applicant: CIRCULT FOLL CORP
Inventor： MCKEAN WALTER A
Abstract: An electrolytic process for imparting stain resistance to sheet copper comprising rendering the copper sheet cathodic in an electrolytic cell containing an aqueous electrolyte containing about 0.4-0.8 grams/liter of hexavalent chromium ions and subjecting said foil to a current density of about 2-4 amps/ft.2 for about 6-8 seconds. Products resulting therefrom.
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公开(公告)号：US3620940A
公开(公告)日：1971-11-16
申请号：US3620940D
申请日：1970-05-12
Applicant: US ARMY
Inventor： WICK REYBURN
CPC classification number: C25D11/30
Abstract: Methods for surface polarizing magnesium and its alloys; thus permitting large pieces to be readily anodized using only nominal electric power. Low adhesion, easily strippable film strips are adhered to the pieces, the strips providing areas of exposed metal which allow a high current density to be built up thereat which produces vigorous electrolytic action for progressively peeling off the films for subsequent anodization of the pieces.
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Patent Agency Ranking
公开(公告)号：US3563863A
公开(公告)日：1971-02-16
申请号：US3563863D
申请日：1967-05-16
Applicant: MALLORY & CO INC P R
Inventor： VIEROW WILLIAM F
CPC classification number: C25D11/26
Abstract: A PROCESS FOR CONTINUOUSLY ANODIZING TANTALUM FOIL AND SINTERED POWDERED PELLETS FORMED ON THE FOIL WHEREIN THE FOIL PASSES THROUGH CATHODE PLATES IMMERSED IN AN ELECTOLYTE BATH AND THE FULL FORMATION VOLTAGE IS APPLIED TO THE BATH.
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公开(公告)号：US3505092A
公开(公告)日：1970-04-07
申请号：US3505092D
申请日：1968-06-14
Applicant: LIBBEY OWENS FORD CO
Inventor： RYAN JOSEPH DENNIS , SMALL EDWARD A JR
CPC classification number: C03C17/3605 , C03C17/3417 , C03C17/36 , C03C17/3649 , C03C17/3657 , C03C17/3681 , Y10T428/265
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8.发明授权
公开(公告)号：US3466230A
公开(公告)日：1969-09-09
申请号：US3466230D
申请日：1965-03-02
Applicant: COLLINS RADIO CO
Inventor： CARITHERS MERCER D
CPC classification number: H01G9/0032 , C23C8/02 , C23C8/80 , H01G4/1254 , Y10S205/917 , Y10T29/417
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公开(公告)号：US3463707A
公开(公告)日：1969-08-26
申请号：US3463707D
申请日：1966-01-13
Applicant: PACIFIC ENG & PRODUCTION CO
Inventor： GIBSON FRED D JR , HALKER BRUCE B , THAYER ROBERT L
IPC: C01B15/00 , C01G21/08 , C25B1/00 , C25B11/04 , C25B11/16 , C25D9/06 , C23B5/50 , C23B5/54 , C23B9/00
CPC classification number: C01B15/00 , C01G21/08 , C01P2004/61 , C25B11/0452 , C25B11/16 , C25D9/06
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公开(公告)号：US3446715A
公开(公告)日：1969-05-27
申请号：US3446715D
申请日：1965-04-09
Applicant: OAKITE PROD INC
Inventor： FREY SAMUEL S
CPC classification number: C25D11/34 , C23G1/10 , C25D5/34 , Y10S428/935 , Y10T428/12792
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