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Obtaining method of laser resistance trimming scheme, laser resistance trimming scheme and chip resistor

A technology of laser resistance adjustment and acquisition method, which is applied to non-adjustable metal resistors, resistors, resistance manufacturing and other directions, can solve the problems of low resistance precision and low yield, and achieves the improvement of controllability, precision and yield. Effect

Active Publication Date: 2022-06-21
SHENZHEN JPT OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a method for obtaining a laser resistance adjustment scheme, so as to obtain a method that can solve the low resistance accuracy and low yield of the secondary resistance adjustment method commonly found in the current secondary resistance adjustment method to a certain extent. Laser Trimming Solution for Technical Problems

Method used

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  • Obtaining method of laser resistance trimming scheme, laser resistance trimming scheme and chip resistor
  • Obtaining method of laser resistance trimming scheme, laser resistance trimming scheme and chip resistor
  • Obtaining method of laser resistance trimming scheme, laser resistance trimming scheme and chip resistor

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Embodiment 1

[0058] The method for obtaining a laser resistance trimming solution provided in this embodiment is used to obtain a laser resistance trimming method.

[0059] see figure 1 As shown, the method for obtaining the laser resistance trimming solution provided by this embodiment includes the following steps:

[0060] S100, the resistance to be adjusted is first cut with a serpentine knife edge, so that the resistance value precision of the resistance to be adjusted reaches a predetermined precision, and the value range of the predetermined precision is 0.1%-1%;

[0061] S101, the resistance to be adjusted is used to cut the cutting edge for the second time;

[0062] S102, judging whether the resistance value accuracy of the resistor to be adjusted reaches the target accuracy;

[0063] S103 , if the resistance value accuracy of the resistor to be adjusted reaches the target accuracy, determine that the laser resistance adjustment scheme is to sequentially cut the blank resistor wi...

Embodiment 2

[0126] Embodiment 2 provides a laser resistance trimming solution. This embodiment includes the method for obtaining the laser resistance trimming solution in Embodiment 1. The technical features of the method for obtaining the laser resistance trimming solution disclosed in Embodiment 1 are also applicable to this implementation. For example, the technical features of the method for obtaining the laser resistance trimming solution disclosed in the first embodiment will not be described repeatedly.

[0127] The laser resistance trimming solution provided in this embodiment is obtained by the obtaining method of the laser resistance trimming solution provided in the first embodiment.

[0128] Specifically, the laser resistance trimming scheme includes the following steps:

[0129] S700, cutting the blank resistor for the first time with a serpentine edge, so that the resistance value accuracy of the resistor to be adjusted reaches a predetermined accuracy;

[0130] S701, the b...

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Abstract

The invention relates to the technical field of laser resistance trimming, in particular to a method for obtaining a laser resistance adjustment scheme, a laser resistance adjustment scheme and a chip resistor. The acquisition method of the laser resistance adjustment scheme includes the following steps: cutting the resistance to be adjusted once with a serpentine knife edge, so that the resistance value precision of the resistance to be adjusted reaches a predetermined accuracy, and the value range of the predetermined accuracy is 0.1%-1%; Adjust the resistance to perform secondary cutting on the cutting edge; judge whether the resistance accuracy of the resistance to be adjusted reaches the target accuracy; if the resistance accuracy of the resistance to be adjusted reaches the target accuracy, determine the laser resistance adjustment scheme as follows: serpentine knife edge and double cutting The knife edge cuts the blank resistor. The laser resistance trimming scheme is obtained by the method for obtaining the laser resistance trimming scheme. The chip resistor is produced through the laser resistance trimming scheme. The acquisition method of the laser resistance adjustment scheme, the laser resistance adjustment scheme and the chip resistor can improve the precision and yield of finished resistors.

Description

technical field [0001] The invention relates to the technical field of laser resistance trimming, in particular to a method for obtaining a laser resistance trimming scheme, a laser resistance trimming scheme and a chip resistor. Background technique [0002] The principle of laser resistance trimming is to use a very fine laser beam to hit the thick and thin film resistors, and the resistor body is vaporized and evaporated to realize the cutting of thick and thin film circuits. By changing the conductive cross-sectional area of ​​the resistors, the resistance accuracy is improved. [0003] In order to improve the resistance accuracy from 1% to 0.1%, laser trimming is usually performed by means of secondary resistance trimming. After the first resistance adjustment operation, it is usually cut to within the accuracy range of 1% to 1.5% of the target value, and then after the second resistance adjustment operation, it is cut to within the accuracy range of 0.1% of the target ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C17/242H01C7/00
CPCH01C17/242H01C7/00H01C7/003H01C7/006
Inventor 柯梽全陈德佳彭荣森成学平刘健黄治家
Owner SHENZHEN JPT OPTO ELECTRONICS CO LTD
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