Hybrid microwave integrated circuit
A technology of integrated circuits and mixed microwaves, applied in circuits, electrical components, electrical solid devices, etc., can solve problems such as easy oscillation, poor thermal conductivity, and weak welding, so as to increase thermal conductivity, improve matching performance and Anti-jamming ability and effect of ensuring stability
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[0023] The power device in this example uses an AlGaN / GaN HEMT (gallium nitride-based high electron mobility field effect transistor) power device based on a SiC (silicon carbide) substrate. Chip connection structure such as figure 2 , the circuit schematic see image 3 .
[0024] figure 2 A schematic diagram showing the connection line configuration relationship of 2 of the 8 power devices packaged on the 16mm substrate. In this example, the eight power devices in the hybrid microwave integrated circuit are composed of chip structures such as figure 1 The single power device (two field effect transistors) shown is synthesized. The gate electrodes and drain electrodes of each field effect transistor are respectively connected in parallel by welding gold wires with a diameter of about 25 μm, and the parallel connected gate electrodes and drain electrodes are respectively welded on the matching circuit by gold wires, such as figure 2 shown. In this example, each power d...
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