Component built-in device
An RFID module includes a laminated body including thermoplastic resin layers, a passive element defined by a conductor pattern on the thermoplastic resin layers, and an RFID IC chip embedded in the laminated body. The RFID IC chip and the conductor pattern are connected to each other by joining an input and output terminal of the RFID IC chip and a pad electrode, and an insulator pattern overlapping the pad electrode is provided around the RFID IC chip in the laminated body in planar view.
1. A component built-in device comprising:
a laminated body including a plurality of thermoplastic resin layers;
a plurality of conductor patterns provided on the thermoplastic resin layers; and
a chip electronic component embedded in the laminated body; wherein
the chip electronic component includes an input and output terminal;
the laminated body includes a pad electrode connected to the plurality of conductor patterns;
the chip electronic component and the plurality of conductor patterns are connected to each other via a direct or indirect connection between the input and output terminal and the pad electrode;
a belt-shaped, annular-shaped, or partially annular-shaped insulator pattern overlapping the pad electrode is provided around the chip electronic component in the laminated body in a planar view from a laminating direction of the thermoplastic resin layers; and
the insulator pattern does not overlap the chip electronic component in the planar view from the laminating direction.
2. The component built-in device according to claim 1 , wherein
the plurality of conductor patterns include a coil-shaped conductor pattern;
the coil-shaped conductor pattern is provided in a region that does not overlap the chip electronic component in the planar view from the laminating direction; and
the insulator pattern is provided at a position that does not overlap the coil-shaped conductor pattern in the planar view from the laminating direction.
3. The component built-in device according to claim 1 , wherein the insulator pattern overlaps an outer edge of the pad electrode in the planar view from the laminating direction.
4. The component built-in device according to claim 1 , wherein the insulator pattern primarily includes a thermoplastic resin that is identical to a resin of the plurality of thermoplastic resin layers.
5. The component built-in device according to claim 1 , wherein the insulator pattern is provided on at least two of the plurality of thermoplastic resin layers in the laminated body.
6. The component built-in device according to claim 1 , wherein the insulator pattern surrounds an entire or substantially entire periphery of the chip electronic component in the planar view from the laminating direction.
7. The component built-in device according to claim 1 , wherein the input and output terminal of the chip electronic component is in contact with the pad electrode, and at least a portion of the insulator pattern is in contact with the pad electrode.