Coating process for radio frequency circuit and radio frequency circuit

A radio frequency circuit and coating process technology, applied in circuit devices, printed circuit components, printed circuit secondary processing, etc., can solve problems such as reducing product environmental adaptability and greatly affecting circuit performance, achieving high practical value, The circuit performance is not affected, and the effect of improving the withstand voltage capability

Active Publication Date: 2020-07-28
SICHUAN JIULI MICROWAVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional conformal coatings are only used in low-frequency bands (L-band and below). When the operating frequency is high, it will have a greater impact on circuit performance. Therefore, high-frequency circuits generally do not undergo conformal treatment, which undoubtedly reduces the environmental protection of the product. adaptability

Method used

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  • Coating process for radio frequency circuit and radio frequency circuit
  • Coating process for radio frequency circuit and radio frequency circuit
  • Coating process for radio frequency circuit and radio frequency circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] A coating process for radio frequency circuits, comprising the steps of:

[0035] S1: PCB protective agent is selected as the coating material;

[0036] S2: Clean up the radio frequency circuit;

[0037] S3: drying the radio frequency circuit and cooling it to normal temperature;

[0038] S4: Coating the RF circuit multiple times: Use a three-proof coating device to coat the RF circuit with a PCB protective agent. After coating, put it in a high-temperature oven at 80°C to 90°C and bake it for 0.5 to 1 hour. Cool to room temperature and repeat this process several times.

[0039] Further, a coating process for radio frequency circuits, the PCB protectant in S1 and S4 is RH-35 type PCB protectant.

[0040] Further, a coating process for radio frequency circuits, the S2 is specifically cleaning iron filings, welding slag, and dirt on the surface of radio frequency circuits with alcohol.

[0041] Further, in a coating process for radio frequency circuits, the multiple ...

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PUM

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Abstract

The invention discloses a coating process for a radio frequency circuit and the radio frequency circuit coated by the coating process. The coating process comprises the following steps of S1, selecting PCB protective agent as a coating material; S2, cleaning the radio frequency circuit; S3, drying and cooling the radio frequency circuit to the normal temperature; and S4, coating the radio frequency circuit for multiple times, namely coating the radio frequency circuit with a PCB protective agent by adopting a three-proofing coating appliance, putting the coated radio frequency circuit into a high-temperature box of 80-90 DEG C, baking for 0.5-1 hour, cooling to normal temperature, and repeating the process for multiple times. The coating process is advantaged in that the novel PCB protective agent is applied to the radio-frequency circuit, has remarkable effects of improving the voltage endurance capability of the high-power radio-frequency circuit and improving environmental adaptability of the radio-frequency circuit, and the coating process has very high practical value.

Description

technical field [0001] The invention relates to a coating process, in particular to a coating process for a radio frequency circuit and the radio frequency circuit. Background technique [0002] Traditional conformal coatings are only used in low-frequency bands (L-band and below). When the operating frequency is high, it will have a greater impact on circuit performance. Therefore, high-frequency circuits generally do not undergo conformal treatment, which undoubtedly reduces the environmental protection of the product. adaptability. [0003] Nowadays, high-frequency microwave circuits are widely used in various fields such as aviation, aerospace, navigation, communication, etc., which put forward more stringent requirements for the environmental adaptability of products, and pay more attention to the withstand voltage ability of high-power products under low pressure. Improving the environmental adaptability of products is the top priority in the research and development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/28H05K1/02
CPCH05K3/28H05K1/0213
Inventor 尹魁
Owner SICHUAN JIULI MICROWAVE
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