摘要:
A single side band (SSB) modulator module using a carrier frequency includes: first and second Mach-Zender interferometers for modulating the carrier frequency and first and second signals into an SSB signal; and an arm, which is connected to both ends at which the first and second Mach-Zender interferometers are connected, splits the carrier frequency, and outputs a split portion to the first and second Mach-Zender interferometers.
摘要:
A display device includes a first substrate, light emitting elements formed over the first substrate, a second substrate facing the first substrate, and a sealing member between the first and the second substrate to combine them. The sealing member is patterned to expose the light emitting elements. The sealing member may include black colored material to improve contrast, and dehydrating material may be part of the device to absorb moisture and/or oxygen. Accordingly, the transmittance of light generated from the light emitting elements increases and the luminance of display device improves.
摘要:
Off-axis projection optics that includes first and second mirrors positioned off-axis and sharing a confocal point that are arranged to reduce linear astigmatism. If a distance between an object plane and the first mirror is l1, an incident angle of light coming from the object plane to the first mirror is i1, a distance between the first mirror and the confocal point is l1′, a distance between the confocal point and the second mirror is l2, an incident angle of light coming from the first mirror to the second mirror is i2, and a distance between the second mirror and an image plane is l2′, the off-axis projection optics may satisfy the following equation: l 1 ′ + l 1 l 1 tan i 1 = l 2 ′ + l 2 l 2 tan i 2 .
摘要:
A refrigerator and a method of controlling the same. The refrigerator includes: tags attached to goods stored in a storage chamber; a reader, including a plurality of antennas having different identification distances, identifying the tags using the antennas; and a control unit detecting locations of the tags attached to goods stored in the storage chamber using the different identification distances of the antennas.
摘要:
A method of fabricating a high-sensitivity image sensor is disclosed. The disclosed method comprises: etching a predetermined region of active silicon and a buried oxide layer by using a mask over an SOI substrate to expose an N-type silicon substrate; implanting P-type ions into the exposed N-type silicon substrate to form a P-type region; forming crossed active silicon by patterning the rest of the active silicon not etched while the active silicon is etched to expose the N-type silicon substrate; implanting P-type ions into first two predetermined regions facing each other of the crossed active silicon to form P-type regions; implanting N-type ions into second two predetermined regions facing each other except for the P-type regions of the crossed active silicon to form N-type regions; forming a gate oxide layer and a gate electrode on the crossed active silicon; and forming a connection part to connect the P-type region of the crossed active silicon to the P-type region of the silicon substrate.
摘要:
A method of fabricating a high-sensitivity image sensor is disclosed. The disclosed method comprises: etching a predetermined region of active silicon and a buried oxide layer by using a mask over an SOI substrate to expose an N-type silicon substrate; implanting P-type ions into the exposed N-type silicon substrate to form a P-type region; forming crossed active silicon by patterning the rest of the active silicon not etched while the active silicon is etched to expose the N-type silicon substrate; implanting P-type ions into first two predetermined regions facing each other of the crossed active silicon to form P-type regions; implanting N-type ions into second two predetermined regions facing each other except for the P-type regions of the crossed active silicon to form N-type regions; forming a gate oxide layer and a gate electrode on the crossed active silicon; and forming a connection part to connect the P-type region of the crossed active silicon to the P-type region of the silicon substrate.
摘要:
The present invention relates to a photodetector using MOSFET with quantum channels and a method for making thereof. A photodetector using MOSFET with quantum channels according to the present invention comprises a quantum channel formed on an activated SOI wafer, a gate oxide film covering said quantum channel; a gate formed so as to control carrier current at said quantum channel; a source and a drain formed at both ends of said channel area; and metal layers connected with said gate, said source and said drain. Thus, the photodetector according to the present invention can obtain more excellent photocurrent characteristics compared with the existing SOI MOSFET device by forming quantum channels on the SOI MOSFET. The MOSFET with quantum channels according to the present invention can be used as a good photodetector maintaining advantages of the existing MOSFET such as ease in integration and high speed.
摘要:
A flat panel display and method for fabricating the same are disclosed. In the flat panel display a substrate includes a pixel region having a plurality of unit pixels, and a peripheral circuit region arranged in the periphery of the pixel region. The peripheral circuit region also includes a driving circuit for driving the plurality of unit pixels. At least one circuit thin film transistor is positioned in the peripheral circuit region and includes a first semiconductor layer crystallized by a sequential lateral solidification method. At least one pixel thin film transistor is positioned in the pixel region and includes a second semiconductor layer having a channel region crystallized by one of a metal induced crystallization method or a metal induced lateral crystallization method.
摘要:
A bi-directional WDM-PON and a method for allocating a wavelength band are disclosed. In the bi-directional WDM-PON, bi-directional transceiver modules are used to transmit optical signals of different wavelengths in the upstream and downstream directions. An L-band and an S-band are used to allocate wavelength bands to the upstream and downstream optical signals so that a wavelength band interval at which the respective wavelength bands of the upstream and downstream optical signals are spaced is set between 50 nm to 150 nm.
摘要:
A method is provided for forming quantum holes of nanometer levels. In an ion beam scanner, ions are projected from an ion gun onto a semiconductor substrate. During the projection, ions are focused into an ion beam whose focal point is controlled to determine the diameter of the ion beam, and the ion beam is accelerated. When being incident upon the semiconductor substrate, the ion beam is deflected so as to form a plurality of quantum holes. Also provided is a light-emitting device with quantum dots. Impurities are doped onto a semiconductor substrate to form a P-type semiconductor layer on which a undoped, intrinsic semiconductor is grown to a certain thickness. A plurality of quantum holes are provided for the intrinsic semiconductor layer, followed by filling materials smaller in energy band gap than the intrinsic semiconductor in annealed quantum holes through recrystallization growth. Next, an N-type semiconductor layer is overlaid on the quantum hole layer. Composition of the materials filled in the quantum holes determines the color of the light emitted from the light-emitting device. Thus, the semiconductor device is fabricated to emit light of the three primary colors or one of them. By cutting the semiconductor device, unit display panels or elements can be prepared which emit radiation at wavelengths corresponding to red, green and blue colors.