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11.发明授权
公开(公告)号：US3047380A
公开(公告)日：1962-07-31
申请号：US386560
申请日：1960-01-21
Applicant: PHILIPS CORP
Inventor： JAN BLOEM
CPC classification number: H01J13/06 , C30B13/00 , C30B29/08 , H01J2893/0075 , H01L21/00
Abstract: Germanium is freed from oxygen by adding magnesium, beryllium or titanium and zone refining. Zone refining may be repeated one or more times. 0,1-5 atomic per cent of magnesium based on the molten zone may be employed. As shown a pellet 3 consisting of a 2 to 3 mixture of magnesium and germanium is placed on one end of a bar 2 of germanium in a graphite crucible 1. The crucible is then placed in a quartz tube 4, which is then traversed by an induction heating coil 5 during the passage through the tube of a stream of pure dry hydrogen. After the passage of two molten zones, the end of high magnesium content is cut off and the remainder is treated with an aqueous solution of hydrogen fluoride and nitric acid. A desired amount of a significant impurity may be incorporated in the germanium or a single crystal may be formed during the passage of the second molten zone.
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公开(公告)号：US2976451A
公开(公告)日：1961-03-21
申请号：US81887459
申请日：1959-06-08
Applicant: GEN ELECTRIC
Inventor： REILING GILBERT H , JENSEN ANDREW O
CPC classification number: H01J13/06 , H01J13/50 , H01J2893/0075
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公开(公告)号：US1776157A
公开(公告)日：1930-09-16
申请号：US17624227
申请日：1927-03-17
Applicant: GEN ELECTRIC
Inventor： CHRISTIAN KRAMER
CPC classification number: H01J13/06 , H01J13/22 , H01J2893/0075
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14.发明授权Switching arrangements wherein a cylindrical trigger electrode is arranged around a gap between an anode and cathode for establishing a discharge therebetween 失效开关装置，其中圆柱形触发电极围绕阳极和阴极之间的间隙布置，以在它们之间建立放电
公开(公告)号：US5994850A
公开(公告)日：1999-11-30
申请号：US704860
申请日：1996-08-28
Applicant: Richard John Seddon , Kenneth George Cook
Inventor： Richard John Seddon , Kenneth George Cook
CPC classification number: H01J13/06
Abstract: A switch for switching large currents and large charges includes an anode separated from a cathode with a cylindrical trigger electrode located around the anode and the gap. The cathode is of a metal such as zinc, cadmium, tin or magnesium. During operation, a suitable potential applied to the trigger electrode causes a main discharge to occur between the anode and the cathode.
Abstract translation: 用于切换大电流和大电荷的开关包括从阴极分离的阳极和位于阳极和间隙周围的圆柱形触发电极。 阴极是锌，镉，锡或镁等金属。 在操作期间，施加到触发电极的合适电位导致在阳极和阴极之间发生主放电。
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公开(公告)号：US3538375A
公开(公告)日：1970-11-03
申请号：US3538375D
申请日：1968-04-11
Applicant: HUGHES AIRCRAFT CO
Inventor： ECKHARDT WILFRIED O
CPC classification number: H01J13/06 , H01J13/08 , H01J2893/0075
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Patent Agency Ranking16.发明授权
公开(公告)号：US3475636A
公开(公告)日：1969-10-28
申请号：US3475636D
申请日：1967-11-14
Applicant: HUGHES AIRCRAFT CO
Inventor： ECKHARDT WILFRIED O
CPC classification number: H05H1/48 , H01J13/06 , H01J27/02 , H01J2893/0075
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公开(公告)号：US2675495A
公开(公告)日：1954-04-13
申请号：US27008252
申请日：1952-02-05
Applicant: DE LANY BEATRICE PEARSON , COPELAND PAUL L
Inventor： DE LANY BEATRICE PEARSON , COPELAND PAUL L
CPC classification number: H01J13/06 , H01J13/12 , H01J2893/0075
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公开(公告)号：US2594017A
公开(公告)日：1952-04-22
申请号：US16711650
申请日：1950-06-09
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： HIBBARD LLOYD J , CASANOVA LOUIS A , BUCHANAN ROBERT A
CPC classification number: H01J13/06 , H01J13/12 , H01J2893/0075
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公开(公告)号：US2210816A
公开(公告)日：1940-08-06
申请号：US25415639
申请日：1939-02-02
Applicant: GEN ELECTRIC
Inventor： MILES LAWRENCE D
CPC classification number: H01J13/06 , H01J13/48 , H01J2893/0075
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公开(公告)号：US2192349A
公开(公告)日：1940-03-05
申请号：US15062437
申请日：1937-06-26
Applicant: PHILIPS NV
Inventor： TOM JURRIAANSE , WILHELM MULDER JOHANNES GIJSBE
CPC classification number: H01J13/06 , H01J13/12 , H01J2893/0075
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