TWO-IN-ONE PRINTED WIRING BOARDS

A printed wiring board includes a continuous metallic sheet (112, 212) on a bottom surface (9, 29) that is opposite a component-mounting surface (8, 28). Each of several vias in the printed wiring board has a frusto-conical form factor with a larger end closer to the component-mounting surface (8, 2...

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Bibliographische Detailangaben
Hauptverfasser:	LIM, Min Suet, CHUAH, Tin Poay, LIM, Yew San, GOH, Eng Huat, SIR, Jiun Hann
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS
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Beschreibung
Zusammenfassung:	A printed wiring board includes a continuous metallic sheet (112, 212) on a bottom surface (9, 29) that is opposite a component-mounting surface (8, 28). Each of several vias in the printed wiring board has a frusto-conical form factor with a larger end closer to the component-mounting surface (8, 28) than to the bottom surface (9, 29). (The most illustrative drawing is Figure 1B)