CIRCUIT FORMING METHOD, PORTABLE TERMINAL, AND MULTILAYER PRINTED BOARD

Japanese Patent JP2004112224

A

To provide a circuit forming method which prevents adverse influences of the oscillation of a crystal oscillator piece existing in a horizontal type crystal device, on a multilayer printed board of a portable terminal having vibration sources such as vibrators and speakers, and improves the wiring efficiency of a pattern.

On a layer on which a horizontal type crystal oscillator 2 is mounted or at least an adjacent layer thereto, a pattern is formed so that it may not overlap at least regions of electrodes 5 on a crystal oscillator piece 4 existing in the oscillator 2 among board regions facing the piece 4.

WO/2018/097264	MULTILAYER CIRCUIT BOARD MANUFACTURING METHOD
JP7122939	Wiring board and its manufacturing method
JP3660733	PHOTOSENSITIVE FILM MATERIAL FOR INSULATING CIRCUIT SUBSTRATE, FLEXIBLE PRINTED WIRING BOARD AND SUCCESSIVE MULTILAYERED SUBSTRATE USING THE SAME

SUWA YOJI

JP2002270567A

April 08, 2004

September 17, 2002

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KYOCERA CORP

H05K3/46; H03H9/02; H03H9/10; H04B1/38; H04B1/3822; (IPC1-7): H04B1/38; H03H9/02; H03H9/10; H05K3/46

Masatake Shiga
Takashi Watanabe
Masakazu Aoyama
Yasuhiko Murayama

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