摘要:
A method for fabricating semiconductor device includes the steps of: providing a substrate having a first region and a second region thereon; forming a high-k dielectric layer, a barrier layer, and a first metal layer on the substrate; removing the first metal layer of the second region; forming a polysilicon layer to cover the first metal layer of the first region and the barrier layer of the second region; patterning the polysilicon layer, the first metal layer, the barrier layer, and the high-k dielectric layer to form a first gate structure and a second gate structure in the first region and the second region; and forming a source/drain in the substrate adjacent to two sides of the first gate structure and the second gate structure.
摘要:
An electrode connection structure of a speaker unit is provided. The speaker unit includes at least one electrode layer, which is made of a conductive material, or made of a non-conductive material with a conductive layer formed on a surface thereof. The electrode connection structure includes a conductive electrode and an adhesive material. The conductive electrode is used for providing power supply signals for the speaker unit to generate sounds. The adhesive material adheres the conductive electrode in parallel with a surface of the electrode layer. The adhesive material has adhesive characteristics, so as to electrically connect the conductive electrode and the electrode layer, in which the adhesive material is adhered to a side of the surface of the electrode layer closely adjacent to the conductive electrode with a certain area.
摘要:
A thin film transistor (TFT) structure is provided. The TFT comprises a gate, a first electrode, a second electrode, a dielectric layer, and a channel layer. By overlapping the area between the first electrode and the gate, the TFT structure acquires a parasitic capacitor that is unaffected by manufacture deviations. Therefore, the TFT needs no compensation capacitor, thereby, increasing the aperture ratio of the TFT.
摘要:
A pre-compensation method for delays caused by optical fiber chromatic dispersion, a multi-sub-carrier signal generator applying the method, and a transmitter applying the signal generator are applicable to an optical orthogonal frequency-division multiplexing (OFDM) system. The pre-compensation method includes receiving a plurality of pre-compensation values, in which the pre-compensation values correspond to sub-carriers; and transmitting the sub-carriers after delaying the sub-carriers by time of the corresponding pre-compensation values. The delay time between the sub-carriers is estimated at a receiver end and a pre-compensation value of the transmitter is set according to the delay time. The transmitter delays the pre-compensation values respectively when transmitting the respective sub-carriers. Therefore, the respective sub-carriers are able to reach a receiver at nearly the same time, thereby achieving a purpose of pre-compensating for the delays caused by optical fiber chromatic dispersion.
摘要:
Disclosed is an apparatus and method for medium access control (MAC) in an optical packet-switched network. The MAC apparatus may comprise a bandwidth allocation module and an MAC processor. The bandwidth allocation module determines a data transmission limit based on a probabilistic quota plus credit mechanism for each node of the network, dynamically informs all downstream nodes of unused quota and allows the downstream nodes to use remaining bandwidths of the upstream node. Through a control message carried by a control channel, the MAC processor determines uploading, downloading and data erasing for a plurality of data channels, and updates the corresponding contents in the control message.
摘要:
A thin film transistor (TFT) structure is provided. The TFT comprises a gate, a first electrode, a second electrode, a dielectric layer, and a channel layer. By overlapping the area between the first electrode and the gate, the TFT structure acquires a parasitic capacitor that is unaffected by manufacture deviations. Therefore, the TFT needs no compensation capacitor, thereby, increasing the aperture ratio of the TFT.
摘要:
A photo detector is disclosed. The photo detector includes a substrate, a first patterned semiconductor layer with a first state, a dielectric layer, a patterned conductive layer, an inter-layer dielectric, a second patterned semiconductor layer with a second state, two first electrodes disposed on the inter-layer dielectric and two second electrodes disposed on portions of the second semiconductor layer. The first patterned semiconductor layer having a first doping region and a second doping region is disposed on a transistor region of the substrate. The dielectric layer is disposed to cover the substrate and the first semiconductor layer, the patterned conductive layer is disposed on the dielectric layer, and the inter-layer dielectric having at least two openings adapted to expose the first doping region and the second doping region is disposed to cover the dielectric layer. The second patterned semiconductor layer is disposed on a photosensitive region and the first electrodes are electrically connected to the first patterned semiconductor layer.
摘要:
A heat exchanger includes a body having a center and a spiral guiding trough extending spirally and outwardly from the center toward an outside of the center. The radius of the spiral guiding trough increases gradually from the center toward the outside of the center. A first port and a second port are in communication with the spiral guiding trough respectively. With the combination of the spiral guiding trough and the body, the fluid can be sufficiently mixed in the spiral guiding trough, thereby achieving an excellent thermal-conducting effect.
摘要:
Disclosed is a distributed controlled passive optical network system and bandwidth control method thereof. The system comprises an optical line terminal (OLT), plural optical network units (ONUs) and a splitter with combiner. Each ONU has a first Tx/Rx for respectively transmitting and receiving data packets on an upstream data channel and a downstream data channel, and a second Tx/Rx for transmitting and receiving control signals/commands on a control channel. Upstream data of each ONU is carried by the upstream data channel and sent to the OLT through the splitter with combiner. Downstream data of the OLT is carried by the downstream data channel and sent to corresponding ONUs through the splitter with combiner. With the control signals/commands carried by the control channel, the required information of network status among the ONUs is provided.
摘要:
An FFT processor is disclosed, which includes a first multi-pipelined MDC unit, a second multi-pipelined MDC unit and a switching network. The first multi-pipelined MDC unit and the second multi-pipelined MDC unit respectively employ a plurality of MDC circuits to change the positions of the delayers thereof in parallel way. By changing the operation time sequence of the signals in the first multi-pipelined MDC unit and the second multi-pipelined MDC unit, the first multi-pipelined MDC unit is able to directly send the operation results to the second multi-pipelined MDC unit through the switching network.