Clock-tree layout flow method and clock-tree deviation compensation device in integrate circuit

A technology of integrated circuits and compensation devices, which is applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of small effective time window, large clock tree delay, and cost, so as to accelerate the timing convergence cycle and shorten the time to market Time, Difficulty Reduction Effects

Active Publication Date: 2019-02-22
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps improve the performance of computer systems by reducing their complexity while still being able to operate correctly with each other's components properly. It also makes it easier for software developers to develop applications that work together more efficiently without any issues or errors caused when they use different parts from one another.

Problems solved by technology

Technological Problem addressed in this patents relates to improving the efficiency and performance of electronic devices with smaller components while still maintaining their functionality even if they become larger due to advancements made over recent years. Specifically, current methods involve dividing the circuitry into smaller parts based upon logical rules rather than combining them together. Additionally, existing techniques used during synchronization may result in delays caused by signal processing times. To address these challenges, new solutions involving virtual circuits instead of real ones were proposed but previously discussed only focusing on achieving equal loads across various elements of the device's architecture.

Method used

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  • Clock-tree layout flow method and clock-tree deviation compensation device in integrate circuit
  • Clock-tree layout flow method and clock-tree deviation compensation device in integrate circuit
  • Clock-tree layout flow method and clock-tree deviation compensation device in integrate circuit

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Embodiment Construction

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0049] The method for laying out a clock tree in an integrated circuit according to an embodiment of the present invention is as follows: figure 2 shown, including the following steps:

[0050] Step 1: Top level layout. First, divide and place the hard modules on the top layer. After many iterations and experiments, there will be no wiring congestion and timing violations in the subsequent layout and wiring process. Within a certain range, such as ensuring that the static pressure drop is less than 3%-5%, and the dynamic pressure drop is less than 10%-15%. Each hard module is denoted a...

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Abstract

The invention discloses a clock tree layout flow method in an integrated circuit, in particular comprising the following steps: step 1, a top layer layout; 2, physical realization of a hard module; 3,extracting the clock tree information in the hard module; 4, acquire that clock tree deviation between the hard modules; 5, insert a clock tree deviation compensating device into that top-level module T; 6, generate a top-level clock tree in that top-level module T; 7, wire generation is carried out on that signal interconnection between each hard module in the top-layer module T; 8, extracting the interface timing model of the hard module when the static timing analysis of the whole chip is carried out; 9, static timing analysis of the whole chip; Step 10: physical authentication. The invention can reduce the level of the clock tree and the difficulty of balancing the clock tree. At the same time, a clock tree deviation compensation device is proposed for this flow method, which can effectively reduce the difficulty of timing convergence between hard modules.

Description

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Claims

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Application Information

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Owner WUHAN INSTITUTE OF TECHNOLOGY
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