High power aluminum nitride ceramic substrate 100w-20db attenuator
A technology of aluminum nitride ceramics and aluminum nitride substrates, which is applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problem of attenuation sheet impedance and attenuation accuracy deviation, attenuation accuracy that cannot meet the requirements, and poor high and low temperature impact resistance To improve the design, avoid resistance quenching, and increase the impact resistance of high and low temperature
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[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0019] Such as figure 1 , 2 As shown, the high-power aluminum nitride ceramic substrate 100W-20dB attenuator includes an aluminum nitride substrate 1, a conductive layer 5 is printed on the back of the aluminum nitride substrate 1, and the conductive layer is printed by printing silver paste. The front surface of the aluminum nitride substrate 1 is printed with resistors R1, R2, R3, R4, R5 and silver paste wires 2. The silver paste wires 2 connect the resistors R1, R2, R3, R4, R5 to form an attenuation circuit with a TT structure , The resistors R1, R2, R3, R4, R5 are all printed with a glass protective film 3, and the glass protective film 3 is used to protect the resistors R1, R2, R3, R4, R5. A black protective film 4 is also printed on the upper surface of the entire circuit, namely the silver paste wire 2 and the glass protective film 3,...
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