A Method for Determining Via Parameters and Via Impedance Values ​​on Circuit Board

Abstract

The present invention relates to the field of semiconductor manufacturing, in particular to a method for determining via hole parameters and via hole impedance values ​​on a circuit board, so as to solve the problem that the impact of the via hole design on the circuit board cannot be quantitatively analyzed at present, and when the circuit board design test finds that When there is a problem, multiple revisions are required to solve the problem, the development cycle is long, and the cost is high. In the embodiment of the present invention, by obtaining the corresponding relationship between the parameters of the via hole to be tested and the impedance value of the via hole to be tested, the impact of the parameter of the via hole to be tested on the impedance value of the via hole to be tested is quantitatively analyzed, and according to the parameters of the via hole to be tested and the impedance value of the via hole to be tested Test the corresponding relationship of the impedance value of the via, determine the via parameter that meets the impedance value of the required circuit board, shorten the development cycle, reduce the number of revisions caused by unreasonable via design, and reduce the cost.

Description

technical field [0001] The invention relates to the field of semiconductor manufacturing, in particular to a method for determining via hole parameters and via hole impedance values ​​on a circuit board. Background technique [0002] With the development of digital signal processing theory and the emergence of digital circuits, digital circuits are widely used to realize various functions. In digital products, the binary code stream composed of "0" and "1" is used to transmit information, and the binary code "0" and "1" are represented by high and low levels, which greatly improves the anti-noise performance of the product. However, with the continuous improvement of circuit operating frequency, whether the code stream of "0" and "1" can be accurately transmitted to the receiving end, and whether the receiving end can accurately judge it has become a new problem. [0003] The "0" and "1" codes are transmitted through voltage or current waveforms. Although the information is...

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Problems solved by technology

[0005] Embodiments of the present invention provide a method for determining via hole parameters and via impedance values ​​on a circuit board, so as to solve the problem that the influence of via design on the circuit board cannot be quantitatively analyzed at present. When a problem is found in the circuit board design test, it needs Multiple revisions can solve the problem, the development cycle is long, and the cost is high

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