Clearance hole size adjustment for impedance control in multilayer electronic packaging and printed circuit boards

The present invention provides a technique for adjusting the size of clearance holes for impedance control in multilayer electronic packaging and printed circuit boards. The method comprises: providing parameters for a structure having a clearance hole and at least one via passing through the cleara...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Dyckman, Warren D, LaFontant, Gary, Pillai, Edward R
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention provides a technique for adjusting the size of clearance holes for impedance control in multilayer electronic packaging and printed circuit boards. The method comprises: providing parameters for a structure having a clearance hole and at least one via passing through the clearance hole; calculating a characteristic impedance for the at least one via; and adjusting at least a size of the clearance hole until the characteristic impedance for the at least one via is approximately equal to a desired characteristic impedance.