摘要:
An easel includes a main frame including a prop in front, a first supporting frame to support the main frame, and a tilting unit. An upper end portion of the first supporting frame is rotatably coupled to the main frame. One end portion of the tilting unit is rotatably coupled to the main frame, the other end portion of the tilting unit is rotatably coupled to the first supporting frame to adjust a tilt angle of the first supporting frame with respect to the main frame and is detachable to be adjustably positioned along a length direction of the first supporting unit. The easel can adjust a tilt angle as desired and reliably maintain an adjusted tilt angle.
摘要:
A complementary metal oxide semiconductor (CMOS) device includes an n-type first transistor on a silicon substrate, the n-type first transistor including a Group III-V compound semiconductor substrate, and a p-type second transistor on the silicon substrate, the p-type second transistor including a germanium based substrate.
摘要:
A coil part is provided. The coil part includes a coil layer including a core and a first coil and a second coil disposed on and under the core, a lower magnetic layer bonded under the coil layer, and an upper magnetic layer bonded on the coil layer. Accordingly, it is possible to improve process and productivity and cut fabrication costs by preventing process defects that occur during the fabrication process of a coil part using a ferrite substrate.
摘要:
A semiconductor device including a group III-V barrier and a method of manufacturing the semiconductor device, the semiconductor device including: a substrate, insulation layers formed to be spaced apart on the substrate, a group III-V material layer for filling the space between the insulation layers and having a portion protruding higher than the insulation layers, a barrier layer for covering the side and upper surfaces of the protruding portion of the group III-V material layer and having a bandgap larger than that of the group III-V material layer, a gate insulation film for covering the surface of the barrier layer, a gate electrode formed on the gate insulation film, and source and drain electrodes formed apart from the gate electrode. The overall composition of the group III-V material layer is uniform. The barrier layer may include a group III-V material for forming a quantum well.
摘要:
The present invention discloses a filter for removing noise, which includes: a lower magnetic substrate; a coil layer disposed on the lower magnetic substrate and including at least one conductor pattern and an insulating layer covering the conductor pattern; an upper magnetic substrate disposed on the coil layer; and a magnetic permeability enhancing layer disposed on the magnetic substrate with lower magnetic permeability of the lower magnetic substrate and the upper magnetic substrate.According to the present invention, it is possible to implement a filter for removing noise with high performance, characteristics, and reliability by increasing magnetic permeability to improve impedance characteristics and improving an effect of shielding electromagnetic waves such as jamming.
摘要:
A method of a first DNS which can update server information in real time without necessarily using a TTL (Time To Live) by recording a network address of the first DNS, which has previously obtained server address information from a second DNS, in a notification list, by the second DNS, and transmitting the changed information from the second DNS to the first DNS recorded in the notification list when the previously obtained/requested server address changes, and updating the server address by the first DNS as provided by the second DNS. A DNS updating server address method may further include providing a first DNS with server address information corresponding to a domain, recording a network address of the first DNS in a notification list, corresponding to the domain and/or the server address information, and transmitting a changed server address information to the first DNS based on the notification list.
摘要:
An x-ray detection photo diode is disclosed. The disclosed x-ray detection photo diode includes: a substrate; a first electrode formed on the substrate; a photoconductor layer formed on the first electrode in a narrower area than that of the first electrode; and a second electrode formed on the photoconductor layer. In this manner, the x-ray detection photo diode enables the electrode structure to be changed. As such, a leakage current generated in edges of the x-ray detection photo diode can be minimized.
摘要:
Disclosed herein are a ferrite powder not including pores in a surface thereof, a method for preparing the same, and a common mode noise filter including the same as a material for a magnetic layer. The spherical ferrite powder in which the pores in the surface thereof are removed as a magnetic layer of the common mode noise filter has high density, such that dispersibility is improved, thereby making it possible to improve adhesive strength with a polymer binder to be mixed. In addition, the adhesive strength between the polymer binder and the ferrite powder is improved, such that at the time of manufacturing or mounting of a chip, a defect such as a crack generated by a thermal impact due to a lack of adhesive strength between the ferrite powder and the polymer binder may be suppressed, thereby securing the reliability with respect to the thermal impact.
摘要:
Disclosed herein are a motor control apparatus and a motor control method thereof. The motor control method includes estimating a current torque of a motor based on dynamics of a body driven by the motor, judging whether the estimated torque is higher than a predetermined torque value, compensating for a velocity profile to drive the motor from the predetermined torque value, upon judging that the estimated torque is higher than the predetermined torque value, and driving the motor using the compensated velocity profile. Thereby, the velocity profile is compensated for in real time, and thus the velocity of the motor is raised while preventing the motor from stepping out.