PCB circuit board, signal detection device and PCB circuit board preparation method

The invention relates to a PCB circuit board, a signal detection device and a PCB circuit board preparation method. The PCB circuit board comprises at least three core boards, at least one buried groove, at least one insulating blind hole and dielectric layers, wherein the at least three core boards...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN YANG, HUANG YINGHAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS PRINTED CIRCUITS RADIO DIRECTION-FINDING RADIO NAVIGATION TARIFF METERING APPARATUS TESTING
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