Abstract: A semiconductor device and method of manufacturing the same are provided. The semiconductor device includes a substrate and a first gate electrode disposed on the substrate and located in a first region of the semiconductor device. The semiconductor device also includes a first sidewall structure covering the first gate electrode. The semiconductor device further includes a protective layer disposed between the first gate electrode and the first sidewall structure. In addition, the semiconductor device includes a second gate electrode disposed on the substrate and located in a second region of the semiconductor device. The semiconductor device also includes a second sidewall structure covering a lateral surface of the second gate electrode.

Abstract: Systems and methods are provided that may be implemented for overvoltage protection of bulk capacitors employed in power factor correction (PFC) circuitry components of switched mode power supply units (PSUs) using one or more inductive overvoltage feedback protection paths (OVPs) to monitor a voltage indicative of a PFC bulk capacitor by sensing the real time voltage at one or both of the primary and/or secondary side windings of a PSU transformer, and/or using an auxiliary windings of a PSU transformer.

Abstract: A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

Abstract: Systems and methods are provided that may be implemented for overvoltage protection of bulk capacitors employed in power factor correction (PFC) circuitry components of switched mode power supply units (PSUs) using one or more inductive overvoltage feedback protection paths (OVPs) to monitor a voltage indicative of a PFC bulk capacitor by sensing the real time voltage at one or both of the primary and/or secondary side windings of a PSU transformer, and/or using an auxiliary windings of a PSU transformer.

Abstract: A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

Abstract: A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

Abstract: A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

Abstract: An overstress protection apparatus includes a switch detector. The switch is arranged in a grounding path of a load system. The detector detects the current, voltage or temperature of the load system to determine a signal for controlling the switch, to thereby protect the load system working in normal conditions.

Abstract: A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

Abstract: An overstress protection apparatus includes a switch detector. The switch is arranged in a grounding path of a load system. The detector detects the current, voltage or temperature of the load system to determine a signal for controlling the switch, to thereby protect the load system working in normal conditions.

Abstract: A bulb socket and bulb arrangement includes a jacket set at a caulking part above the fixture of the bulb socket. There are several jack catches inside the jacket. The outer part of the bulb has several convex catches. When the bulb is inserted into the bulb socket, the convex catches of the bulb will be geared between the jack catches within the jacket. Such an engagement can fix the bulb with the fixture of the bulb socket more effectively.

Abstract: The present invention relates to an improved fixed-device for the bulb socket having a chunking member installed at one side of leading-in socket of the said bulb socket, wherein it comprises a plurality of concaved ratchets, a fixed-frame having a pressing piece, and in addition there are exserted ratchets, which are positioned at the place opposite to the said chunking member, snapped at each other in order to achieve the characteristic of rapid assembly and firmly fastening consequently.

Abstract: The invention is an improved bulb cap fixture device supplement which includes a fixture frame attached to the guiding base on a bulb cap. There are a certain number of tenon blocks and tenon grooves on the adjacent surface of the guiding base and the fixture base. The tenon blocks and the tenon grooves are mutually interlocked. The guiding base and the fixture frame can be quickly and conveniently assembled for fixture.

Abstract: The present invention provides a C.I.P. of U.S. patent application Ser. No. 09/546,175, namely, an improved device for the bulb socket. This refers to a jacket set at the caulking part above the fixture of the bulb socket. There are several jack catches inside the jacket. Besides, the outer part of the bulb is added with several convex catches. When the bulb is inserted into the fixture of the bulb socket, the convex catches of the bulb will be geared between the jack catches within the jacket. Such an engagement can fix the bulb with the fixture of the bulb socket more effectively.