Abstract: The present invention relates to a method for producing an artificial scalp model using a 3D printing-based multi-point multi-nozzles, and an artificial scalp model manufactured by using same, in which a dermal mimetic body can be created by using a plurality of nozzle arrays, a pore mimic structure can be generated, and hair follicle spheroids can then be created by 3D printing. In the method for producing an artificial scalp model using a 3D printing-based multi-point multi-nozzles and the artificial scalp model manufactured by using same, according to the present invention, by mimicking the hair of a healthy scalp, a plurality of arrayed hair follicle cells can be generated by 3D printing, and by using this, the effect of maximizing the treatment effect of scarring alopecia is obtained.

Abstract: The present invention relates to a method for producing an adipose model through environmental control and an adipose model created using same, the method comprising the steps of: providing a first bioink, which is cell-unfriendly; creating a bath suspension with a predetermined volume by using the first bioink; providing a second bioink comprising preadipocytes; 3Dprinting the second bioink in the bath suspension so as to produce an adipose model; and culturing the bath suspension in which the adipose model is disposed. The method for producing an adipose model through environmental control and the adipose model created using same, according to the present disclosure, form environments for a 3D-printed adipose model, and limit the proliferation area of adipose cells and induce the differentiation thereof, and thus can maximize similarity with actual adipose tissues.

Abstract: By controlling shapes of internal electrodes, when short-circuit occurs between the internal electrodes, a short-circuited portion may be opened by an overcurrent, to serve as a fuse. Also, by controlling shapes of internal electrodes, equivalent series inductance (ESL) at a high frequency may be reduced.

Abstract: A multilayer electronic component includes a body including dielectric layers, and first and second internal electrodes alternately stacked in a first direction, and having first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction, a resistor disposed on the second surface, a via electrode exposed to the second surface and connecting the second internal electrode and the resistor to each other, a first external electrode disposed on the third surface and connected to the first internal electrode, and a second external electrode disposed on the fourth surface and connected to the resistor.

Abstract: A multilayer electronic component includes a body including dielectric layers, and first and second internal electrodes alternately stacked in a first direction, and having first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction, a resistor disposed on the second surface, a via electrode exposed to the second surface and connecting the second internal electrode and the resistor to each other, a first external electrode disposed on the third surface and connected to the first internal electrode, and a second external electrode disposed on the fourth surface and connected to the resistor.

Abstract: By controlling shapes of internal electrodes, when short-circuit occurs between the internal electrodes, a short-circuited portion may be opened by an overcurrent, to serve as a fuse. Also, by controlling shapes of internal electrodes, equivalent series inductance (ESL) at a high frequency may be reduced.

Abstract: The present disclosure relates to a cantilever sensor, and a biosensor having the same, wherein the cantilever sensor including a slit formed on a flat board and a cantilever formed by the slit, a first electrode formed on the cantilever, and a second electrode formed on the flat board countered to the first electrode about the slit, wherein the electrodes are formed on the cantilever sensor having the slit, whereby sensing can be conducted by an electric method, through which the sensor can be effectively miniaturized.

Abstract: The present disclosure relates to a cantilever sensor, and a biosensor having the same, wherein the cantilever sensor including a slit formed on a flat board and a cantilever formed by the slit, a first electrode formed on the cantilever, and a second electrode formed on the flat board countered to the first electrode about the slit, wherein the electrodes are formed on the cantilever sensor having the slit, whereby sensing can be conducted by an electric method, through which the sensor can be effectively miniaturized.

Abstract: Embodiments of the present invention provide a printed circuit board, which includes an electromagnetic bandgap structure disposed around an antenna, so as to prevent noise from being transmitted to the antenna. The printed circuit board includes an antenna, a circuit chip, a plurality of metal layers and a plurality of dielectric layers, a pair of transmission lines for transmitting a signal to the antenna, and an electromagnetic bandgap structure disposed between the antenna and the circuit chip and for preventing an electromagnetic wave from being transmitted from the circuit chip to the antenna.

Abstract: The present invention relates to a circuit width thinning defect prevention device and a method of preventing a circuit width thinning defect, and can prevent a circuit width thinning defect, that is, a reduction in circuit width due to excessive etching on a specific portion by including a storage means for storing dam design information classified according to the type of a weak portion; an analysis means for analyzing first design information to deduce the type and position of the weak portion; a matching means for extracting the dam design information corresponding to the type of the weak portion from the dam design information stored in the storage means; and a change means for changing the first design information to add a dam according to the dam design information extracted by the matching means to the position of the weak portion deduced by the analysis means.

Abstract: Disclosed is a printed circuit board, which includes an electromagnetic bandgap structure disposed around an antenna so as to prevent noise from being transmitted to the antenna. The printed circuit board includes an antenna, a circuit chip, a plurality of metal layers and a plurality of dielectric layers, a pair of transmission lines for transmitting a signal to the antenna, and an electromagnetic bandgap structure disposed between the antenna and the circuit chip and for preventing an electromagnetic wave from being transmitted from the circuit chip to the antenna.

Abstract: A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device includes a data receiving unit to receive data, a controller unit to control processing of data to be transmitted, a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value, and transmitting electrodes connected to the current limiting circuit and to contact the body to transmit the signal having the current of predetermined value to the receiver.

Abstract: The present invention relates to a device for generating a signal and method for controlling operation of the same. The present invention provides a device for generating a signal, which includes an electrode, if connected to an external power source, supplied with a voltage from the external power source, a signal generating unit having a plurality of terminals, the signal generating unit deciding whether to operate the device according to a size of a voltage applied to a first terminal among a plurality of the terminals, the signal generating unit outputting a prescribed signal according to the decision, and a control circuit, if the electrode is connected to a plurality of the terminals, controlling a voltage applied to a plurality of the terminals. Accordingly, the present invention is able to control whether to operate a signal generating device using an external power source.

Abstract: Disclosed herein are an electromagnetic bandgap structure and a printed circuit board having the same. The bandgap structure includes a conductive layer including a plurality of conductive plates, a first metal layer disposed under the conductive layer and including a first stitching pattern electrically connected to a first conductive plate of the plurality of conductive plates, and a second metal layer disposed under the first metal layer and including a second stitching pattern electrically connected to both the first stitching pattern and a second conductive plate of the plurality of conductive plates. The bandgap to structure includes stitching patterns formed in two layers different from the conductive layer, thus offering a stop-band having a desired bandwidth in a compact structure.

Abstract: Disclosed herein are an electromagnetic bandgap structure and a printed circuit board having the same. The bandgap structure includes a conductive layer including a plurality of conductive plates; and a metal layer disposed over or under the conductive layer and including a stitching pattern to electrically connect a first conductive plate to a second conductive plate of the plurality of conductive plates. The bandgap structure includes a spiral stitching pattern formed in a metal layer different from the conductive layer, thus offering a stop-band having a desired bandwidth in a compact structure.

Abstract: The present invention relates to a device for generating a signal and method for controlling operation of the same. The present invention provides a device for generating a signal, which includes an electrode, if connected to an external power source, supplied with a voltage from the external power source, a signal generating unit having a plurality of terminals, the signal generating unit deciding whether to operate the device according to a size of a voltage applied to a first terminal among a plurality of the terminals, the signal generating unit outputting a prescribed signal according to the decision, and a control circuit, if the electrode is connected to a plurality of the terminals, controlling a voltage applied to a plurality of the terminals. Accordingly, the present invention is able to control whether to operate a signal generating device using an external power source.

Abstract: The present invention relates to a device for generating a signal and method for controlling operation of the same. The present invention provides a device for generating a signal, which includes an electrode (110), if connected to an external power source (200), supplied with a voltage from the external power source (200), a signal generating unit (130) having a plurality of terminals, the signal generating unit (130) deciding whether to operate the device according to a size of a voltage applied to a first terminal among a plurality of the terminals, the signal generating unit (130) outputting a prescribed signal according to the decision, and a control circuit (120), if the electrode (110) is connected to a plurality of the terminals, controlling a voltage applied to a plurality of the terminals. Accordingly, the present invention is able to control whether to operate a signal generating device (100) using an external power source (200).

Abstract: The present invention provides method and system for data communication in the human body and a sensor therefor. The method and system transmit information through the human body to a receiver located outside the human body using low current and voltage polarity, so that they cause no damage to the human body and achieve low power consumption and better receiving sensitivity. In addition, the sensor contains a CMOS image sensor on which all circuits are integrated without radio transmitter and antenna, so that it achieves a low-priced and small-sized capsule type endoscope.

Abstract: A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device includes a data receiving unit to receive data, a controller unit to control processing of data to be transmitted, a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value, and transmitting electrodes connected to the current limiting circuit and to contact the body to transmit the signal having the current of predetermined value to the receiver.

Abstract: A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device includes a data receiving unit to receive data, a controller unit to control processing of data to be transmitted, a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value, and transmitting electrodes connected to the current limiting circuit and to contact the body to transmit the signal having the current of predetermined value to the receiver.