Chip resistor body processing method

Abstract

The invention discloses a chip resistor body processing method, which comprises the following steps: S1, rough forming: forming a resistor body (1), wherein the resistor body (1) comprises a plurality of vertical parts (10), a horizontal part (11) is connected between every two adjacent vertical parts (10), and at least one of the horizontal parts (11) is a fine adjustment part (110) of which the width is greater than that of the other horizontal parts (11); and S2, fine adjustment of the resistance value: removing the material on the fine adjustment part (110), and reducing the width of the fine adjustment part (110) until the resistance value of the resistor body (1) reaches a design value. The fine adjustment part is wide, so that the fine adjustment part still has good structural strength after fine adjustment, the weak position of the product is optimized, and the electrical performance and reliability of the product are enhanced; and the problem that the use performance and the service life of the resistor body are affected due to local overheating after loading is avoided.

Description

technical field [0001] The present application relates to the technical field of resistance processing, in particular to a method for processing chip resistance resistors. Background technique [0002] Chip resistors, also known as chip-type fixed resistors, are small in size, can greatly save circuit space costs, make the design more refined, and are widely used in various electronic circuits. [0003] Chip resistors usually include a resistor body. In the prior art, when it is necessary to produce a chip resistor with a larger resistance value, the resistor body is usually processed into such as Figure 6 shape shown, thereby increasing the resistance. Its resistance adjustment pattern is asymmetrical left and right, and the cross-sectional area of ​​each part of the resistor body is approximately the same. [0004] In the resistor body processed into Figure 6 After the S-like shape shown, the resistance value may not be able to reach the design value, and it needs to be...

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Problems solved by technology

[0005] The disadvantage of the above structure is that after the resistance is fine-tuned, the cross-section of the fine-tuned part of the resistor body will be smaller than that of other parts, so that during the loading process of the resistor, the fine-tuned part will accumulate more heat than the rest, resulting in the fine-tuned part It is very fragile and the temperature will be very high; at the same time, the small cross-sectional area of ​​the fine-tuning part directly makes its strength worse than other parts, forming a new fragile part and reducing the performance of chip resistor products

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