PRINTED CIRCUIT BOARD

PURPOSE:To provide a pattern of printed circuit board for mounting circuit elements which ensures simple, reliable earthing without measuring place limitation. CONSTITUTION:In a printed circuit board 1 in which many holes 1a are provided for insertion of terminals of circuit elements 2 and the perip...

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Bibliographische Detailangaben
1. Verfasser:	ITASHIKI KUNIMITSU
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 MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PRINTED CIRCUITS TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a pattern of printed circuit board for mounting circuit elements which ensures simple, reliable earthing without measuring place limitation. CONSTITUTION:In a printed circuit board 1 in which many holes 1a are provided for insertion of terminals of circuit elements 2 and the periphery of such hole 1a is formed at the earthing surface 1b, a recessed area 1c is provided near the hole 1a on the earthing surface 1b.