摘要:
Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
摘要:
Gallium nitride material structures, including devices, and methods associated with the same are provided. In some embodiments, the structures include one or more isolation regions which electrically isolate adjacent devices. One aspect of the invention is the discovery that the isolation regions also can significantly reduce the leakage current of devices (e.g., transistors) made from the structures, particularly devices that also include a passivating layer formed on a surface of the gallium nitride material. Lower leakage currents can result in increased power densities and operating voltages, amongst other advantages.
摘要:
Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
摘要:
Gallium nitride material devices and methods of forming the same are provided. The devices include an electrode-defining layer. The electrode-defining layer typically has a via formed therein in which an electrode is formed (at least in part). Thus, the via defines (at least in part) dimensions of the electrode. In some cases, the electrode-defining layer is a passivating layer that is formed on a gallium nitride material region.
摘要:
Gallium nitride material devices and methods of forming the same are provided. The devices include an electrode-defining layer. The electrode-defining layer typically has a via formed therein in which an electrode is formed (at least in part). Thus, the via defines (at least in part) dimensions of the electrode. In some cases, the electrode-defining layer is a passivating layer that is formed on a gallium nitride material region.
摘要:
FIG. 1 is a perspective view of the Arduino matrix screen enclosure; FIG. 2 is a back view thereof; FIG. 3 is a right side view thereof; FIG. 4 is a left side view thereof; FIG. 5 is a top side view thereof; FIG. 6 is a bottom view thereof; and, FIG. 7 is an exploded view thereof.
摘要:
A combined fill and safety vent plug adapted to being mounted in a port in a pressure tank. A valve housing member is adapted to being mounted in a port in a pressure vessel. A fill valve is located in a fill valve socket in the valve housing member. A vent valve and an overflow system are also provided in the valve housing member. All of the functions of filling, venting, dispensing, and overflow protection are provided by elements contained in one single plug in one single port in a pressure vessel. For safety purposes, the vent valve dumps excess fluid generally laterally of the valve housing member.
摘要:
The present invention is directed to an apparatus for applying markings, particularly to springs, that are clean (ink in self contained storage units), allows quick color changes and reduces wasted ink or paint. An application means that does not dry out during short down time periods, keeps up with production rates, and is cost effective.
摘要:
The present invention is directed to an apparatus for applying markings, particularly to springs, that are clean (ink in self contained storage units), allows quick color changes and reduces wasted ink or paint. An application means that does not dry out during short down time periods, keeps up with production rates, and is cost effective.