Design method for setting 10-degree wiring of high-speed signals on single PCB (Printed Circuit Board)

Abstract

The invention discloses a design method for setting 10-degree wiring of high-speed signals on a single PCB (Printed Circuit Board). A design program for setting 10-degree wiring of the high-speed signals on the single PCB is developed by use of CADENCE AXLSKILL language; during specific operations, the SKILL program is put in a wiring tool installation document; once the SKILL program is executed, a prompting dialog box is popped up; the length of each section of 10-degree wiring is input according to the dialog, and then CLine needing to be designed into 10-degree wiring is selected, and therefore, the design of 10-degree wiring can be completed. Due to the adopted design method, the design of 10-degree wiring of high-speed signals can be realized very simply, either board or PCB design space is saved, and meanwhile, the transmission losses of high-speed signals in the board due to weaving effect are also effectively inhibited; the operating method of the design tool is also very simple and convenient.

Description

technical field [0001] The invention relates to the electronic field, and relates to the design and manufacture of a single board, which is completed by using CADENCE ALLEGRO wiring design software and CADENCE AXLSKILL development language. technical background [0002] At present, the transmission rate of signals is getting higher and higher, and the dielectric loss of PCB single board has become a very important factor restricting signal transmission. Because of the weaving effect of the medium, our traditional horizontal or vertical wiring methods have different losses at the same position. [0003] Because PCB is not an isotropic and uniform material, since the board is woven from glass fiber and epoxy resin, there are gaps between glass fiber and epoxy resin in each board. If the high-speed differential wiring does not go 10°, the loss between PNs is very different. The dielectric constants of glass fiber and resin are different. During differential routing, the two w...

AI Technical Summary

Problems solved by technology

[0006] For our current use of CADENCE ALLEGRO wiring design software, it is difficult to achieve a 10° wiring design

We can only design the wiring at any angle to suppress the weaving effect of the medium, but this wiring method is unsightly and wastes the design space of the wiring, which is not conducive to the design of the PCB board.

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