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    PROCESS AND APPARATUS FOR GROWING MERCURY CADMIUM TELLURIDE LAYER BY LIQUID PHASE EPITAXY FROM MERCURY-RICH MELT
    2.
    发明授权
    PROCESS AND APPARATUS FOR GROWING MERCURY CADMIUM TELLURIDE LAYER BY LIQUID PHASE EPITAXY FROM MERCURY-RICH MELT 失效
    通过富含MELT的液相外延生长MERCURY碲化物层的工艺和装置

    公开(公告)号：EP0064514B1

    公开(公告)日：1988-05-04

    申请号：EP81902995.0

    申请日：1981-10-21

    申请人： Santa Barbara Research Center

    发明人： LOCKWOOD, Arthur H.

    IPC分类号： C30B19/04 ,  C30B29/48

    CPC分类号： H01L31/02725 ,  C30B19/04 ,  C30B29/48 ,  Y10S117/907

    摘要： The specification discloses a process and apparatus for forming a layer of mercury cadmium telluride of predetermined composition on the surface of a selected substrate by first providing a crystal growth melt comprising mercury, cadmium, and tellurium in a vertically-oriented crystal growth chamber. The melt comprises 33.33 mole percent or more of mercury and is maintained at a predetermined temperature above the liquidus temperature thereof. A condensing means is provided atop the crystal growth chamber in order to condense vapors of mercury which escape from the melt and to return this condensed mercury to the melt, to thereby maintain the melt at a constant composition. The substrate is contacted with this crystal growth melt for a predetermined period of time while cooling the melt below its liquidus temperature at a predetermined rate sufficient to cause the crystal growth of the layer of mercury cadmium telluride on the substrate to a desired thickness. The layer of mercury cadmium telluride so formed is of uniform composition and of high purity and is formed at a relatively low growth temperature and relatively low system pressure.

    METALLIC CLAD CAPILLARY TUBING
    3.
    发明授权
    METALLIC CLAD CAPILLARY TUBING 失效
    金属帽毛细管

    公开(公告)号：EP0063580B1

    公开(公告)日：1987-01-21

    申请号：EP81902932.3

    申请日：1981-10-22

    申请人： Hughes Aircraft Company

    发明人： WYSOCKI, Joseph A.

    IPC分类号： F16L9/10 ,  B01D15/08

    CPC分类号： F16L9/105 ,  F16L9/14 ,  G01N30/6078

    摘要： Metallic clad glass capillary (10) suitable for use in gas chromatography applications. A metallic coating or jacket (12) is formed on the glass capillary (11) by coating the glass capillary with a metal or alloy as the capillary is drawn from the furnace. The metal or alloy employed is one that is substantially chemically inert with respect to the material comprising the glass capillary at the deposition temperature during coating of the metal or alloy onto the glass capillary and forms a hermetic seal around the outer surface of the glass cladding. The metallic coating prevents chemical or mechanical damage to the glass surface to thereby maintain or preserve the nascent strength of the glass capillary. A plastic coating (13) is optionally provided for additional protection of the metal surface.

    ELECTRON BEAM SYSTEM
    9.
    发明授权
    ELECTRON BEAM SYSTEM 失效
    电子束系统

    公开(公告)号：EP0035556B1

    公开(公告)日：1984-04-25

    申请号：EP80901880.7

    申请日：1980-09-11

    申请人： Hughes Aircraft Company

    发明人： REEDS, JR., John W.

    IPC分类号： H01J37/30 ,  H01J37/09 ,  G21K1/08

    CPC分类号： H01J37/09 ,  H01J37/3007

    摘要： Electron beam lens (22) can be operated in a first mode to demagnify and focus the image of electron source (14) at image plane (32). Electron optical lenses (34) and (46) further demagnify the image plane (32) through the focal point (60) on the face of target (58) to provide a scannable exposure spot. Electron optical lens (22) can be operated in the second mode which floods aperture (32) so that the image of the aperture is demagnified and focused on target (58) to provide a large exposure area.