Optimized structure of power distribution network

Abstract

The invention provides an optimized structure of a power distribution network, comprising a circuit board in which a power network and a ground network are configured; the plurality of capacitors are arranged on the circuit board, each capacitor comprises two electrodes, and the two electrodes are respectively connected with a power supply network and a ground network through a double-via-hole structure; the double-via-hole structure comprises two via holes arranged at two ends of the electrodes respectively, fan holes are formed between the via holes, and the fan holes corresponding to the two electrodes of each capacitor are arranged oppositely. The optimized structure of the power distribution network has the beneficial effects that the fan holes of the capacitors are oppositely arranged, so that the electrodes with different polarities of the capacitors are close to each other, and meanwhile, the first via hole distance between two corresponding electrodes and the second via hole distance between two via holes are reduced to obtain the optimized structure; the impedance of the power distribution network can be effectively reduced, the limited circuit board space is utilized for optimization, the manufacturing cost does not need to be increased, and a better power distribution network is obtained through the optimized structure.

Description

technical field [0001] The invention relates to the technical field of power distribution networks, in particular to an optimized structure of a power distribution network. Background technique [0002] In the field of semiconductor chip testing, the integration of chips is getting higher and higher, the types of power sources are also increasing, and the speed has been increasing. Among them, the impedance of the power distribution network on the circuit board used by the chip has always been a concern. Important parameters. [0003] The current power distribution network will adopt the scheme of adding as many capacitors as possible, without considering the distance and polarity relationship between capacitors. Although the power distribution network can be optimized by increasing the number of capacitors, it will be limited by the space of the circuit board. The cost will also increase further, and simply increasing the capacitance at high frequency will not solve the pr...

AI Technical Summary

Problems solved by technology

[0003] The current power distribution network will adopt the scheme of adding as many capacitors as possible, without considering the distance and polarity relationship between capacitors. Although the power distribution network can be optimized by increasing the number of capacitors, it will be limited by the space of the circuit board. The cost will also increase further, and simply increasing the capacitance at high frequency will not solve the problem

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