tsv automatic positioning method using minimum enclosing circle

Abstract

The invention discloses a method for automatic positioning of TSVs (Through Silicon Vias) through utilizing a smallest enclosing circle, belonging to the field of circuit design. The method comprises the following steps of firstly, establishing a rectangular plane coordinate system for layout of a 3D integrated circuit and projecting coordinates of all standard units in all nets containing the TSVs into the coordinate system; secondly, respectively processing each net containing the TSV; thirdly, forming a discrete point set through all standard units in the nets and utilizing a smallest enclosing circle algorithm to solve the smallest enclosing circle of discrete points, wherein the center coordinates are coordinates of all TSVs of the nets; and lastly, processing the all nets to obtain the coordinates of all TSVs in the 3D integrated circuit. The method has the following beneficial effects that the positions of the TSVs of all nets can be determined; and the positions of the TSVs are determined by utilizing the smallest enclosing circle, so that the method is beneficial to shortening of an interconnection length of the 3D integrated circuit.

Description

Technical field [0001] The invention relates to an automatic layout technology of 3D integrated circuits, belonging to the field of circuit design, and in particular to a TSV automatic positioning method of 3D integrated circuits. Background technique [0002] With the development of the integrated circuit industry, the number of transistors in integrated circuit chips has gradually increased, and the size of transistors has become smaller and smaller. Due to the increase in the number of transistors in the chip, the length of the interconnection increases, causing the power consumption of the interconnection to gradually exceed the power consumption of the transistors and become the main power consumption of the chip. The increase in interconnection length will also lead to increased wiring difficulty and other problems. As the size of transistors shrinks, semiconductor manufacturing processes are getting closer and closer to their physical limits, making it difficult to contin...

AI Technical Summary

Problems solved by technology

Due to the increase in the number of transistors in the chip, the length of the interconnection increases, causing the power consumption of the interconnection to gradually exceed the power consumption of the transistor and become the main power consumption of the chip.

The increase in interconnect length also leads to increased routing difficulty and other issues

As the size of the transistor shrinks, the semiconductor manufacturing process is getting closer and closer to its physical limit, making it difficult to continue shrinking the size of the transistor

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