公开(公告)号：US3806372A

公开(公告)日：1974-04-23

申请号：US25903772

申请日：1972-06-02

Applicant: RCA CORP

Inventor： SOMMER A

IPC: H01J40/06 ,  H01J1/30 ,  H01J1/308 ,  H01J1/34 ,  H01J1/35 ,  H01J9/02 ,  H01J9/12 ,  H01L21/324 ,  H01L31/18 ,  H01L7/34

CPC classification number: H01J9/022 ,  H01J9/125 ,  H01J2201/32 ,  Y10S438/918

Abstract: A METHOD FOR MAKING A NEGATIVE EFFECTIVE-ELECTRONAFFINITY SILICON ELECTRON EMITTER INCLUDES THE STEPS OF PREPARING THE SILICON BY FIRST HEATING FOR A SHORT TIME TO NEAR THE MELTING POINT OF THE SILICON, SENSITIZING BY APPLYING A LAYER OF WORK-FUNCTION-REDUCING MATERIAL, HEATING AGAIN FOR A SHORT TIME TO A LOWER TEMPERATURE THAN THE FIRST AND AGAINST SENSITIZING BY APPLYING A LAYER OF WORK-FUNCTION-REDUCING MATERIAL.

公开(公告)号：US3753023A

公开(公告)日：1973-08-14

申请号：US3753023D

申请日：1971-12-03

Applicant: RCA CORP

Inventor： SOMMER A

IPC: H01J1/32 ,  H01J43/04 ,  H01J43/00

CPC classification number: H01J43/04 ,  H01J1/32

Abstract: In an electron emissive device having electron multiplying dynodes, the dynode surfaces upon which the electrons impinge are provided with a layer of antimony activated with cesium and potassium.

Abstract translation: 在具有电子倍增倍数的电子发射装置中，电子撞击的倍增极表面设置有用铯和钾活化的锑层。

公开(公告)号：US3712700A

公开(公告)日：1973-01-23

申请号：US3712700D

申请日：1971-01-18

Applicant: RCA CORP

Inventor： SOMMER A

IPC: H01J9/12 ,  H01J9/18

CPC classification number: H01J9/12 ,  H01J2201/32 ,  H01J2201/34

Abstract: A method comprising coating an uncontaminated emitter surface of an emitter body with a non-contaminating protective layer and then mounting the body so that the coated surface is in the interior of an envelope. The envelope and body are then heated to a first temperature to drive contaminant gases from surfaces of the envelope interior while these gases are simultaneously pumped out. The first temperature is low enough that the protective layer remains. Then the body is heated to a second temperature, higher than the first, and the protective layer evaporated off the surface while the envelope is maintained at a temperature below the first temperature. Thereafter the emitter surface is activated by the application thereto of a material which lowers the work function.

Abstract translation: 一种方法，包括用未污染的保护层涂覆发射体的未受污染的发射器表面，然后安装所述主体，使得涂覆的表面在信封的内部。 然后将外壳和主体加热到第一温度以驱动来自外壳内表面的污染气体，同时将这些气体抽出。 第一个温度足够低以致保护层残留。 然后将身体加热到高于第一温度的第二温度，并且保护层从表面蒸发掉，同时将外壳保持在低于第一温度的温度。 此后，发射体表面通过施加到其上降低功函数的材料而被激活。