Apparatus with embedded fine line space in a cavity, and a method for forming the same

An apparatus is provided which comprises: a cavity made in a substrate of a printed circuit board (PCB); a plurality of solder balls embedded in the cavity; and a horizontal trace within the substrate, wherein the horizontal trace is partially directly under the plurality of solder balls and is coup...

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Bibliographische Detailangaben
Hauptverfasser:	Darmawikarta, Kristof, May, Robert A, Park, Ji Yong, Deng, Yikang, Alur, Amruthavalli P, Moussallem, Maroun D, Boyapati, Sri Ranga Sai, May, Lilia
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COLORIMETRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS PRINTED CIRCUITS RADIATION PYROMETRY SEMICONDUCTOR DEVICES TESTING
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Beschreibung
Zusammenfassung:	An apparatus is provided which comprises: a cavity made in a substrate of a printed circuit board (PCB); a plurality of solder balls embedded in the cavity; and a horizontal trace within the substrate, wherein the horizontal trace is partially directly under the plurality of solder balls and is coupled to the plurality of solder balls and another trace or via in the substrate such that a substrate region under the plurality of solder balls is independent of a stop layer under the cavity.