TEST CELL FOR LAMINATE AND METHOD

A laminate includes a plurality of buildup layers disposed on a core and a plurality of unit cells defined in the buildup layers. Each unit cell includes: at least one test via that passes through at least two of the buildup layers and that is electrically connected to testing locations on a probe a...

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Bibliographische Detailangaben
Hauptverfasser: Iruvanti Sushumna, Werner Randall J, Orlowski Marek A, Wassick Thomas A, Li Shidong, Tunga Krishna R, Sinha Tuhin, Zitz Jeffrey A, Questad David L
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A laminate includes a plurality of buildup layers disposed on a core and a plurality of unit cells defined in the buildup layers. Each unit cell includes: at least one test via that passes through at least two of the buildup layers and that is electrically connected to testing locations on a probe accessible location of the laminate; and two or more dummy vias disposed in the unit cell. The dummy vias are arranged in the unit cell at one of a plurality of distances from the test via.