Realtek Semiconductor Inc.

Li-Yi Lin

Shu-Yi Kao

Yun-Chih Chang

Chia-Jung Hsu

Hsin-Chang Lin

Cheng-Chen Huang

Yun-Ru Wu

I-Ching Tsai

Hsin-Wei Pan

Chih-Chan Chen

Tien-Kuo Lin

A power rail design method is disclosed that includes the steps outlined below. A plurality of power rails and a plurality of power domains corresponding thereto in an integrated circuit design file are identified. A design rule check for a plurality of circuit units in the integrated circuit design file is performed to retrieve a plurality of non-violating circuit regions that correspond to the power rails in each of the power domains. The power rails corresponding to at least part of the plurality of non-violating circuit regions in the integrated circuit design file are widened to occupy at least part of the non-violating circuit regions for the plurality of power rails.

Power rail design method, apparatus and non-transitory computer readable medium thereof

Disclosed is an integrated circuit (IC) layout method capable of reducing an IR drop as a result of an IC layout process. The method includes the following steps: performing the IC layout process and obtaining an original IC layout; performing an IR drop analysis on the original IC layout and identifying an IR drop hot zone; determining a circuit density limit of the IR drop hot zone; and performing the IC layout process again according to the circuit density limit and obtaining an updated IC layout.

Method for integrated circuit layout

An IC design method is provided that includes steps outlined below. A clock tree structure is retrieved from an IC design file. A branch level number of a branch that each of clock units in the clock tree structure locates is determined. A common branch level number of a common branch that closest to each two of the flip-flops is determined. A scan chain structure is retrieved from the IC design file. A wire distance and a clock skew of each two of the flip-flops are determined. A cost is calculated according to the common branch number, the wire distance and the clock skew. An initial point and a terminal point of the flip-flops in the scan chain structure are determined to further calculate a path having a minimum cost. The order of the scan chain structure of the IC design file is updated.

Integrated circuit design method and non-transitory computer readable medium thereof

A planning method for power metal lines is provided. The planning method includes selecting a block to plan, the block including a first metal layer and a second metal layer therebelow. The first metal layer includes a plurality of first metal lines along a first direction and the second metal layer includes a plurality of second metal lines along a second direction. The block includes a length in the first direction and a width in the second direction. According to a ratio of the length and the width of the block, a line width adjustment procedure is performed to adjust a first line width of each of the first metal lines and a second line width of each of the second metal lines, so that routing congestion can be avoided without affecting the IR drop.

Planning method for power metal lines

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Changhua County, Taiwan

Li-Yi Lin