2711-K10G16 万千商品 全新进口

JAPMC-AN2310-E
JAPMC-IO2303
PMC-U-MP23S04
E69F-T12-JRS
JAMSC-B2732
JAMSC-B2703
ABB EL3020
2098-IPD-HV220
MVI69-PDPMV1
6ES7414-4HJ04-0AB0
6ES7960-1AA04-0XA0
6DS1722-8RR

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描述

半导体表面对环境气氛和接触材料很敏感。表面层对外来电荷(正的或负的电荷)的吸附引起表面能带的弯曲(向上或向下),剧烈地影响半导体中光电子发射的特性。图3中的E表示表面能带向下弯曲的势能,实际有效电子亲和势xeff=x-E。如果E>x,则xeff就成为负值。负电子亲和势(NEA)材料(如GaAs、InGaAsP与Cs2O的接触)的光电子发射的量子产额相当可观,是发展半导体光阴极的重要基础。

HP/Agilent 4934A/001/021 TIMS Transmission Impairment

HP/Agilent E4440-60201 Board Assembly Reference

HP/Agilent E4440-60195 Printed circuit assembly

HP Agilent 8657D Pi4 Dqpsk Mod Signal Generator

HP Agilent 8901B/001/H09 Modulation Analyzer Refurbish

HP Agilent Digital Multimeter Series HP E1412A

HP/Agilent 16741A Timing and State Module. 4M memory, 2

HP/Agilent 16750A Logic Analyzer Module

HP/Agilent 81522A Optical Head 1000-1650nm

Agilent HP 42843A Bias Current Cable for 42842B &42841A

HP/Agilent 70905A RF Section, 50 kHz to 22 GHz

HP – AGILENT 5350B 40GHz MICOWAVE COUNTER W/OPT! 5352B
@@@ CALIBRATED @@@ CALBRATED @@@ CALIBRATED @@@

AGILENT / HP 84904L 11 dB ATTENUATOR 24V DRIVE DC 40GHz

AGILENT/HP 84904K 11 dB ATTENUATOR 24V DRIVE DC 26.5GHz

Agilent HP 8157A/012 Optical Attenuator