Abstract:
Provided is a piezoelectric device including a first piezoelectric plate, a vibration plate provided to contact one surface of the first piezoelectric plate, and at least one second piezoelectric plate provided to contact the vibration plate, wherein the first and second piezoelectric plates have different resonant frequencies.
Abstract:
Provided is a circuit protection device and a method of manufacturing the same including forming a plating lead line and a first coil pattern connected to the plating lead line on a substrate, forming an insulating layer on the first coil pattern and then forming a via hole exposing a portion of the first coil pattern, applying power through a plating lead line to form a via plug filling the via hole from the first coil pattern, and forming a second coil pattern connected to the via plug at an upper portion of the insulating layer.
Abstract:
Disclosed is a sensor device including a plurality of substrates vertically stacked, a plurality of heaters formed on at least one selected substrate and separated from each other in a horizontal direction, a plurality of sensing electrodes formed at least one selected substrate on a top portion of the substrate on which the plurality of heaters are formed and separated in the horizontal direction, and a plurality of materials configured to respectively contact the plurality of sensing electrodes and formed separately from each other.
Abstract:
Provided is a heat-radiating sheet including a heat-radiating layer having a porous structure with multiple pores, a filler including multiple thermally conductive particles and filling the pores inside the heat-radiating layer, and an adhesive layer disposed on at least one surface of the heat-radiating layer.
Abstract:
Provided is a sensor including an insulating layer, at least two heater patterns separated in one direction in the insulating layer and electrically connected to each other, at least two sensing electrode patterns insulated form the heater patterns, separated in the one direction in the insulating layer, and electrically connected to each other, and a sensing material, at least a part of which is buried in the insulating layer to contact the sensing electrode patterns.
Abstract:
Provided is a piezoelectric device including at least two piezoelectric plates configured to include at two contact points, wherein the at least two piezoelectric plates include at least two resonant frequencies. The piezoelectric device in a wearable device operates as at least any one of a piezoelectric sound device and a piezoelectric vibration device.
Abstract:
Provided are a sound amplification box and a sound amplification device. The sound amplification box includes a body including a predetermined resonance space therein and having a surface contacting an electronic device, a resonance hole formed in at least one surface of the body, and a vibration transmission part in a predetermined region of the surface contacting the electronic device.
Abstract:
Provided is a circuit protection device including a plurality of sheets selectively formed with at least one coil pattern, at least one withdrawal electrode, at least one hole filled with a conductive material, and at least one capacitor electrode and at least two inductors and at least two capacitors, in which the at least one coil pattern forms one inductor and a capacitor is formed between the capacitor electrode and the coil pattern.
Abstract:
The present disclosure includes: a laminate in which a plurality of sheets are laminated; two or more noise filters provided spaced apart by a predetermined distance from each other in the laminate and respectively provided with a plurality of coil patterns; an external electrode provided outside the laminate and connected to the two or more noise filters; and a connection electrode provided outside the laminate being spaced apart from the external electrode to connect the two or more coil patterns.
Abstract:
Provided is a laminated chip device including a first laminate in which a plurality of conductor patterns formed on a plurality of sheets are connected to each other through a via formed to penetrate at least a sheet, and a second laminate provided over or below the first laminate and having a plurality of internal electrode patterns formed on a plurality of sheets, and the internal electrode patterns have a non-conductive region in at least a portion of an area corresponding to the via.