Abstract:
PROBLEM TO BE SOLVED: To provide an electron beam source with easy mounting and with long useful life. SOLUTION: A beam electron source includes a base, chips which are fixed to the base, separately extended from the base, equipped with a core which is applied with a surface made of a first material and a coating layer made of a second material, and providing a surface of the chip with the second material, a first electric terminal electrically connected with the coating layer, an extraction electrode having a gap facing to the chip, and a second electric terminal electrically connected with the extraction electrode. The beam electron source satisfies at least one of the following conditions: the electric conductivity of the first material is lower than one of 10 5 s/m, 10 3 s/m, 10s/m, 10 -1 s/m, 10 -3 s/m, 10 -5 s/m, or 10 -7 s/m, the electric conductivity of the second material is higher than one of 10 -7 s/m, 10 -5 s/m, 10 -3 s/m, 10 -1 s/m, 10 2 s/m, 10 4 s/m, or 10 6 s/m, or the ratio of the electric conductivity between the second material and the first material is greater than one of 10:1, 100:1, 10 4 , 10 6 , or 10 8 . COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation:要解决的问题:提供电子束源,安装方便,使用寿命长。 解决方案:束电子源包括基座,芯片固定到与基座分开延伸的基部,配备有芯,其被施加有由第一材料制成的表面和由第二材料制成的涂层 并且提供具有第二材料的芯片的表面,与涂层电连接的第一电端子,具有面向芯片的间隙的引出电极和与引出电极电连接的第二电端子。 束电子源满足以下条件中的至少一个:第一材料的电导率低于10 5 / s / m,10 3 SP> s / m ,10s / m,10 -1 SP> s / m,10 -3 SP> s / m, SP> -7 SP> s / m,第二材料的电导率高于10 -7 SP> s / m,10 -5 SP> m,10 -3 SP> s / m,10 -1 SP> s / m,10 2 SP> s / SP> s / m或10 6 / s / m,或者第二材料与第一材料之间的电导率之比大于10:1,100:1,10:1, SP> 4 SP>,10 6 SP>或10 8 SP>。 版权所有(C)2010,JPO&INPIT