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公开(公告)号：US2761993A
公开(公告)日：1956-09-04
申请号：US29243252
申请日：1952-06-09
Applicant: SIEMENS AG
Inventor： HELMUT KATZ , LUDWIG RAN KARL
IPC: H01J1/28
CPC classification number: H01J1/28
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公开(公告)号：US2640949A
公开(公告)日：1953-06-02
申请号：US20976851
申请日：1951-02-07
Applicant: ATOMIC ENERGY COMMISSION
Inventor： COOK LESLIE J
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公开(公告)号：US2499192A
公开(公告)日：1950-02-28
申请号：US240248
申请日：1948-01-15
Applicant: GEN ELECTRIC
Inventor： LAFFERTY JAMES M
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公开(公告)号：US2185410A
公开(公告)日：1940-01-02
申请号：US23253038
申请日：1938-09-30
Applicant: RCA CORP
Inventor： LEDERER ERNEST A
IPC: H01J1/28
CPC classification number: H01J1/28 , Y10T428/12139 , Y10T428/12146 , Y10T428/12618 , Y10T428/1266 , Y10T428/12729 , Y10T428/2958
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公开(公告)号：US2117636A
公开(公告)日：1938-05-17
申请号：US71715234
申请日：1934-03-24
Applicant: TJOFLAT GERALD B
Inventor： TJOFLAT GERALD B
IPC: H01J1/28
CPC classification number: H01J1/28 , Y10T428/12139
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Patent Agency Ranking
公开(公告)号：US2107945A
公开(公告)日：1938-02-08
申请号：US75387534
申请日：1934-11-20
Applicant: GEN ELECTRIC
Inventor： HULL ALBERT W , RUGGLES WILLIAM A
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公开(公告)号：US20180158639A1
公开(公告)日：2018-06-07
申请号：US15869352
申请日：2018-01-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： GEORG FRIEDRICH GAERTNER , WILHELMUS CORNELIS KEUR
CPC classification number: H01J1/142 , C23C14/082 , C23C14/3414 , H01J1/28 , H01J23/04
Abstract: The invention relates to the field of production of barium-scandate dispenser cathodes or other barium-scandate materials. A target (66) containing a mixture of BaO, CaO, Al2O3 and Sc2O3 tends to be more stable, the higher the scandia (scandium oxide) content is. However, an increased scandia content results in a reduced emission capability. A destabilizing effect of BaO and CaO reactions is counteracted by the more inert Sc2O3 and also Al2O3 components, as not only an increased scandia content stabilizes the material but also an increased alumina (aluminum oxide) content improves the stability.
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公开(公告)号：US08766522B1
公开(公告)日：2014-07-01
申请号：US13105249
申请日：2011-05-11
Applicant: Steven B Fairchild , Benji Maruyama
Inventor： Steven B Fairchild , Benji Maruyama
CPC classification number: H01J1/28 , H01J1/304 , H01J1/3042 , H01J9/025 , H01J11/40 , H01J25/34 , H01J29/467 , H01J2201/304 , H01J2201/3043 , H01J2201/30469 , H01J2329/0431 , H01J2329/0455
Abstract: Improved field emission cathodes comprise a fiber of highly aligned and densely packed single-wall carbon nanotubes, double-wall carbon nanotubes, multi-wall carbon nanotubes, grapheme nanoribbons, carbon nanofibers, and/or carbon planar nanostructures. The fiber cathodes provide superior current carrying capacity without degradation or adverse effects under high field strength testing. The fibers also can be configured as multi-fiber field emission cathodes, and the use of low work function coatings and different tip configurations further improves their performance.
Abstract translation: 改进的场发射阴极包括高度排列和密集堆叠的单壁碳纳米管，双壁碳纳米管，多壁碳纳米管，图形纳米带，碳纳米纤维和/或碳平面纳米结构的纤维。 纤维阴极在高场强测试下提供卓越的载流能力而不降解或不利影响。 纤维也可以配置为多纤维场发射阴极，并且使用低功函数涂层和不同尖端配置进一步提高其性能。
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49.发明授权System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission 有权用于多光束光刻的系统，方法和装置，包括用于均匀电子发射的分配器阴极公开(公告)号：US07710009B2
公开(公告)日：2010-05-04
申请号：US11650310
申请日：2007-01-05
Applicant: Stijn Willem Herman Karel Steenbrink , Pieter Kruit
Inventor： Stijn Willem Herman Karel Steenbrink , Pieter Kruit
CPC classification number: H01J37/065 , B82Y10/00 , B82Y40/00 , H01J1/28 , H01J37/3177 , H01J2237/3175 , H01J2237/31754 , H01J2237/31774
Abstract: A dispenser cathode which comprises an emission surface, a reservoir for material releasing, when heated, work-function-lowering particles, and at least one passage for allowing diffusion of work-function-lowering particles from said reservoir to said emission surface, said emission surface comprising at least one emission area and at least one non-emission area covered with emission-suppressing material and surrounding each emission area, said non-emission area comprising at least one passage connecting said reservoir with said non-emission area and debouching within a diffusion length distance from an emission area for allowing diffusion of work-function-lowering particles from said reservoir to said emission area.
Abstract translation: 分配器阴极，其包括排放表面，用于材料释放的储存器，当被加热时，功能降低颗粒和至少一个通道，用于允许功能降低颗粒从所述储存器扩散到所述发射表面，所述发射 表面包括至少一个发射区域和至少一个覆盖有发射抑制材料并且围绕每个发射区域的非发射区域，所述非发射区域包括将所述储层与所述非发射区域连接的至少一个通道，并在 从放射区域的扩散长度距离，用于允许功能降低颗粒从所述储存器扩散到所述发射区域。
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50.发明授权System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission 失效用于多光束光刻的系统，方法和装置，包括用于均匀电子发射的分配器阴极公开(公告)号：US07215070B2
公开(公告)日：2007-05-08
申请号：US10778787
申请日：2004-02-13
Applicant: Stijn Willem Herman Karel Steenbrink , Pieter Kruit
Inventor： Stijn Willem Herman Karel Steenbrink , Pieter Kruit
CPC classification number: H01J37/065 , B82Y10/00 , B82Y40/00 , H01J1/28 , H01J37/3177 , H01J2237/3175 , H01J2237/31754 , H01J2237/31774
Abstract: A dispenser cathode which comprises an emission surface, a reservoir for material releasing, when heated, work-function-lowering particles, and at least one passage for allowing diffusion of work-function-lowering particles from said reservoir to said emission surface, said emission surface comprising at least one emission area and at least one non-emission area covered with emission-suppressing material and surrounding each emission area, said non-emission area comprising at least one passage connecting said reservoir with said non-emission area and debouching within a diffusion length distance from an emission area for allowing diffusion of work-function-lowering particles from said reservoir to said emission area.
Abstract translation: 分配器阴极，其包括排放表面，用于材料释放的储存器，当被加热时，功能降低颗粒和至少一个通道，用于允许功能降低颗粒从所述储存器扩散到所述发射表面，所述发射 表面包括至少一个发射区域和至少一个覆盖有发射抑制材料并且围绕每个发射区域的非发射区域，所述非发射区域包括将所述储层与所述非发射区域连接的至少一个通道，并在 从放射区域的扩散长度距离，用于允许功能降低颗粒从所述储存器扩散到所述发射区域。
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