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The electrode constitutes the key element of the atom probe (AP) pulse signal generator. The AP parameter Monte Carlo (MC) analysis is introduced. The AP microelectrode is designed with 50-Ω loaded microstrip line centered by via hole. The excitation square wave pulse presents 300-ps duration and 1-kV amplitude. The worst cases of the signal integrity is performed with MC analysis applied to the electrode...
An RF electromagnetic (EM) characterization of high pulsed voltage electrode is investigated in the present paper. The electrode acts as an electric-or E-field pulse generator for atom probe tomography (APT) application. The proposed electrode device is essentially comprised of a microstrip transmission line (TL) combined with via hole. The challenging prediction of the electrode signal integrity...
Improvement of atom probe tomography requires the high voltage rectangular short pulses. This typical RF transient pulse must be applied on a sample inside an ultra-high vacuum (UHV) chamber. In this letter, we present a synthesis technique of rectangular pulse signal with full width ns-duration. The pulse signal was injected into the cryogenic analysis chamber through the transmitting system composed...
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