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Method for manufacturing thin film for sheet-type film attenuator

A manufacturing method and technology of attenuators, which are applied to waveguide-type devices, electrical components, circuits, etc., can solve the problems affecting characteristic impedance, attenuation accuracy, and inconsistent temperature coefficients, and achieve reduced installation area, flexible design, and stable performance. Effect

Active Publication Date: 2014-12-10
CHINA ZHENHUA GRP YUNKE ELECTRONICS
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

Since the resistance value range of the combined attenuator is very standard, if discrete components are used, it will inevitably bring about inconsistent temperature coefficients, which will affect the characteristic impedance and attenuation accuracy

Method used

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with specific embodiments.

[0020] A method for manufacturing a thin film of a chip film attenuator, which includes screen production, printed surface electrodes, printed back electrodes, printed resistors, printed barrier layers, laser resistance adjustment, lobes, end coating, and electroplating. The specific manufacturing methods are as follows:

[0021] First of all, the use of special high-frequency simulation software to guide the selection of materials and the graphic and size design of resistors has certain process guidance significance. Then carry out the design of the positive diagram: under the fixed attenuation and input / output impedance, it will be carried out from the T-shaped and ∏-shaped structures that are easier to realize, and under the same type, the resistor body can be designed as independent and non-independent According to the experimental results of the final product...

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Abstract

The invention discloses a method for manufacturing a thin film for a sheet-type film attenuator. The method comprises the steps of manufacturing a silk screen, printing a surface electrode, printing a back electrode, printing a resistor, printing a barrier layer, conducting laser resistor trimming, splitting, conducting end coating, electroplating and the like. The manufacturing method can greatly reduce the installation area, the weight, the number of components and the like and can reduce the volume, and particularly, the produced attenuator has the advantages of being flexible in design, stable in performance, good in high-frequency performance, convenient to assemble, high in reliability, high in characteristic impedance and decrement precision and the like.

Description

technical field [0001] The invention belongs to a manufacturing method of an attenuator, and in particular relates to a thin film manufacturing method of a sheet-type membrane attenuator. Background technique [0002] An attenuator is a type of passive network used in a transmission system to reduce the signal level without significantly distorting the signal. It can be used to decouple the signal source, the purpose is to adjust the transmission level of the circuit, or to buffer the impact of impedance transformation, and sometimes to improve impedance matching. At present, attenuators have been widely used in radio test instruments, meters, transmission lines, standard attenuators and post and telecommunications, communication, signal carrier, television, computer and other systems. Resistive thick film attenuators have the characteristics of flexible design, stable performance, good high frequency performance, convenient assembly, high reliability, high precision of cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P11/00
Inventor 罗彦军李胜刘剑林罗向阳谢强周瑞山韩玉成郭娜朱威禹邓凯峰
Owner CHINA ZHENHUA GRP YUNKE ELECTRONICS
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