Electronic circuit component
Through an improvement of module size increase due to mounting a single passive element on a substrate and an increase in the mounting cost, to provide a highly reliable, high performance and small sized electronic circuit component which permits to integrate a variety of electronic parts such as capacitors, inductors and resistors in a high density with low cost. The electronic circuit component comprises an insulator substrate, a plurality of electrodes having different areas provided on the insulator substrate, one or more elements selected from a capacitor element of dielectric material sandwiched between the electrodes, an inductor element and resistor element, a metal wiring connecting the elements, a metal terminal part of a part of the metal wiring and an organic insulator material covering the elements and the circumference of the metal wiring portion excluding the metal terminal portion.
1. An electronic circuit component comprising:
an insulator substrate having at least one through hole at a predetermined position therein;
a capacitor comprising a plurality of electrodes having different areas provided on the insulator substrate and dielectric material sandwiched between the electrodes;
at least one element selected from the group consisting of an inductor element and a resistor element;
a metal wiring connecting the elements;
a metal terminal part of a part of the metal wiring; and
an organic insulator material covering the elements and the circumference of the metal wiring portion, excluding the metal terminal portion; wherein,
the area of an upper electrode of said capacitor is smaller than the area of a lower electrode of said capacitor;
said upper electrode is connected to the metal wiring by a lead-out wiring via the at least one through hole, through the organic insulator material; and
the lead-out wiring does not contact the dielectric material.
2. An electronic circuit component according to claim 1 , wherein the insulator substrate is a glass substrate.
3. An electronic circuit component according to claim 1 , wherein the organic insulator material is a photosensitive organic insulator material.
4. An electronic circuit component according to claim 1 , wherein the organic insulator material is a low dielectric loss tangent resin composition which includes a bridging component having a plurality of styrene groups as expressed by the following general chemical formula and contains polymers having average molecular weight of more than 5000,
(Wherein, R represents a hydrocarbon skeleton, which may include a substituent, R 1 represents one of hydrogen, methyl and ethyl, m represents 1 from 4 and n represents an integer more than 1).
5. An electronic circuit component according to claim 1 , wherein the organic insulator material is polyimide.
6. An electronic circuit component according to claim 1 , wherein the organic insulator material is BCB (Benzo Cyclo Butene).
7. An electronic circuit component according to claim 1 , wherein the dielectric material is an organic insulator material or an oxide of any one of Ta, Mg and Sr.