| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a capacitor used for a wiring circuit board, which is downsized and provides a stable output in spite of a high capacitance as designed and to provide a capacitor built-in wiring circuit board wherein a degree of design freedom of capacitor layout is enhanced, and a manufacturing method thereof. <P>SOLUTION: A spiral capacitor adopting a structure comprising: double spiral conductor patterns; and an insulator including a dielectric material embedded between the conductor patterns is employed for the capacitor and the wiring circuit board incorporating the spiral capacitor and the manufacturing method of applying greater packaging density to the circuit board are provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
