Low-temperature drift high-power resistor and fabrication method thereof

Abstract

The invention is applicable to the field of manufacturing of an electronic device, and provides a low-temperature drift high-power resistor and a fabrication method thereof. The resistor comprises two pins, a substrate, two pin conductors and a first sub resistor, wherein the two pin conductors are arranged on the substrate, the first sub resistor is formed on the substrate and is of a rectangular shape, the two short edges of the first sub resistor are separately connected with the two pin conductors, the first sub resistor is formed from resistance paste with a first thickness and resistance paste with a second thickness, the resistance paste with the first thickness completely covers a first resistance region, the resistance paste with the second thickness is partially laminated and covered on the resistance paste with the first thickness, and the pins are correspondingly connected with the pin conductors through immersed tin. By improving a thick membrane printing process flow, the thickness of a resistance printing membrane layer is adjusted; the temperature characteristic of the resistor in a full temperature range (-55 DEG C to 125 DEG C) is improved according to different membrane thick region proportions, the temperature characteristic of the resistor is far away from that of an existing product in the market, the resistor is wide in temperature application range, and the machine installation and application requirements of a user can be met.

Description

technical field [0001] The invention belongs to the field of electronic device manufacturing, and in particular relates to a low-temperature drift high-power resistor and a preparation method thereof. Background technique [0002] With the rapid development of the electronic industry, all kinds of electronic equipment tend to be precisely designed, so that the products can work stably and accurately in various environments, and there are also higher and higher requirements for the temperature characteristics of electronic components. . [0003] As a common electronic component, resistors are widely used in various electronic devices. Different types of resistors can be selected for different circuits, usually in the full temperature range (-55°C ~ 125°C) or under high voltage (3000V), you need to use High-power high-voltage resistors, the temperature characteristics of existing high-power high-voltage resistors in the full temperature range (-55°C to 125°C) are basically gr...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a low-temperature drift high-power resistor, which aims to solve the problem of poor temperature characteristics of existing high-power resistors in the full temperature range

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