Teradyne

About: Teradyne is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Signal & Automatic test equipment. The organization has 828 authors who have published 999 publications receiving 15695 citations.

Measuring a leakage characteristic of a signal path

Abstract: An example method measures a leakage characteristic of a signal path. The example method includes forcing a current onto the signal path; determining a parasitic capacitance of the signal path based on a rate of change of a voltage on the signal path resulting from the current; forcing a voltage onto the signal path for a period of time; and following the period of time, determining the leakage characteristic based on the parasitic capacitance and a rate of change in voltage on the signal path from the forced voltage.

Connecteur fond de panier-carte fille de circuits imprimes

Abstract: ENSEMBLE CONNECTEUR 10 DESTINE A COUPLER UNE CARTE FILLE 15 DE CIRCUITS IMPRIMES COMPORTANT UNE COUCHE DE BASE INTERNE SUR UN FOND DE PANIER COMPRENANT UN ELEMENT CONNECTEUR DE CARTE FILLE 12, COMPRENANT UNE PLURALITE DE PREMIERS CONTACTS DE SIGNAUX 22 CONNECTES AVEC DES LIGNES DE SIGNAUX 18 SUR UNE FACE DE LA CARTE FILLE A PROXIMITE DU FOND DE CETTE DERNIERE, LES CONTACTS DE SIGNAUX S'ETENDANT VERS L'EXTERIEUR DEPUIS LA SURFACE ET VERS LE BAS, ET UN CONTACT DE COUCHE DE BASE 30 CONNECTE ELECTRIQUEMENT AVEC LA COUCHE DE BASE INTERNE 16, LE CONTACT DE COUCHE DE BASE 30 S'ETENDANT LE LONG DU BAS DE LA CARTE FILLE DE FACON A RECOUVRIR UNE PLURALITE DES CONTACTS DE SIGNAUX ET COMPORTANT UNE PORTION DE MISE EN CONTACT INFERIEURE, ALLONGEE, A NUE, ET UN ELEMENT CONNECTEUR DE FOND DE PANIER 14 COMPRENANT UNE PLURALITE DE DEUXIEMES CONTACTS DE SIGNAUX DISPOSES EN VUE DE L'APPARIEMENT SUR LES PREMIERS CONTACTS DE SIGNAUX RESPECTIFS ET UNE BARRE OMNIBUS 36 ALLONGEE, ALIGNEE, POUR PERMETTRE LA MISE EN CONTACT AVEC LA PORTION D'APPARIEMENT.

Channel card architecture for multimode board test systems

Abstract: This paper will describe innovations in board test channel card design that improve the price-performance and flexibility of board test systems. We will discuss a new channel multiplexing scheme and show how this scheme can be used efficiently to configure a variety of multiplexing ratios depending on user requirements and applications.

High-Speed Differential Pair Measurements Based on Two-Port Probe System Only

Abstract: Differential pairs are popularly used in high-speed links. But they are difficult to measure, especially for PCB boards and packagings, due to lacking properly connectable standards or expensive 4-port probe systems. In this work, a new differential analysis method based on the single trace’s two-port measurement is proposed. It is theoretically derived and practically demonstrated that if the traces of a differential pair have weak couplings, their single trace’s 2-port measurements with the other trace open-ended could effectively replace the complex and expensive 4-port differential measurements. To check the approximation accuracy, this paper proposes a companion testing method based on the 2-port system also. This work provides theoretical supports and experimental methods for general differential analysis using economic 2-port systems including but not limited to the probing system.