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High-precision resistor arrangement method and high-precision resistor

A layout method and high-precision technology, applied in circuits, electrical components, electrical solid devices, etc., can solve problems such as large resistance deviation

Active Publication Date: 2016-06-08
XI AN UNIIC SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the resistance value deviation of the existing resistor layout method is relatively large, the present invention provides a high-precision resistor layout method and a high-precision resistor layout method.

Method used

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  • High-precision resistor arrangement method and high-precision resistor
  • High-precision resistor arrangement method and high-precision resistor
  • High-precision resistor arrangement method and high-precision resistor

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Embodiment Construction

[0024] see figure 2 , assuming that the same resistor needs to be composed of 2N unit resistors R, among them, N unit resistors R are placed vertically, and the other N unit resistors R are rotated 90 degrees and placed horizontally. The total resistance remains unchanged, still 2N*R.

[0025] For an ideal resistor, the total resistance value Rt,

[0026] R t = 2 N * R = 2 N * L W * R s q .

[0027] Where Rsq is the square resistance, L is the length of the resistor, and W is the width of the resistor.

[0028] Assuming that during the production process, the L direction changes by a times, and the W direction changes by b times. For the existing resistor layout method, the total resistance Rt′,

[0029] Rt ′ = 2 ...

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Abstract

The invention relates to a high-precision resistor arrangement method and a high-precision resistor. The high-precision resistor comprises 2N unit resistors, wherein N unit resistors are transversely placed, and the other N unit resistors are vertically placed. The technical problem that an existing resistor arrangement mode is large in resistance value deviation is solved. According to the method, the unit resistors are arranged and placed according to different modes and in different directions, the resistor absolute value deviation caused by size deviation in the production process is decreased, the resistor precision is improved, and the system performance can be more stable.

Description

technical field [0001] The invention relates to the field of chips, in particular to a high-precision resistor layout method and a high-precision resistor. Background technique [0002] see figure 1 , a common on-chip resistor layout method. [0003] In general, in order to meet the matching requirements of the on-chip resistors, all unit resistors R will be placed in the same direction. However, in the actual chip production process, because the environment is not ideal, various deviations will occur. The resistance value of the resistor will also have certain deviations, one of which is due to the diffraction of light during the production process, so the width W and length L of the resistor device will have deviations. This deviation directly affects the absolute value of the resistance. Modules that require a higher absolute value of resistance will have an impact. Contents of the invention [0004] In order to solve the technical problem of relatively large resist...

Claims

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Application Information

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IPC IPC(8): H01L27/02
CPCH01L27/0207
Inventor 梁超
Owner XI AN UNIIC SEMICON CO LTD