Classification and localization of hotspots in integrated physical design layouts
AssigneeInternational Business Machines Corporation
InventorsJing Sha, Dongbing Shao, Martin Burkhardt, Michael A. Guillorn
Life of this patent
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Abstract
Methods and systems for fabricating an integrated circuit include training a machine learning model using a training set that includes known physical design layout patterns that are classified according to whether the patterns include a hotspot. It is determined whether an input physical design layout pattern includes a hotspot using the machine learning model. A hotspot localization is generated for the input physical design layout patterns. The input physical design pattern is adjusted to cure the hotspot. A circuit is fabricated in accordance with the adjusted input physical design layout pattern.
Claims20
A method for fabricating an integrated circuit, comprising:
- training a machine learning model using a training set that includes known physical design layout patterns that are classified according to whether the patterns include a hotspot;
- determining whether an input physical design layout pattern includes a hotspot using the machine learning model;
- generating a hotspot localization for the input physical design layout patterns;
- adjusting the input physical design pattern to cure the hotspot;
- and
- fabricating a circuit in accordance with the adjusted input physical design layout pattern.
A method for fabricating an integrated circuit, comprising:
- training a convolutional neural network using a training set that includes known multi-layer physical design layout patterns that are classified according to whether the patterns include a hotspot;
- determining whether an input multi-layer physical design layout pattern includes a hotspot using the convolutional neural network on all layers of the multi-layer circuit physical layout patterns simultaneously;
- verifying that the input physical design layout pattern includes a hotspot using a simulation after determining that the input physical design layout pattern includes a hotspot using the convolutional neural network;
- generating a hotspot heat map for the input multi-layer physical design layout pattern that shows regions with a higher likelihood of a hotspot as a higher heat map intensity;
- adjusting the input physical design pattern to cure the hotspot;
- and
- fabricating a circuit in accordance with the adjusted input multi-layer physical design layout pattern.
A system for fabricating an integrated circuit, comprising:
- a training module configured to train a machine learning model using a training set that includes known physical design layout patterns that are classified according to whether the patterns include a hotspot, wherein the machine learning model is configured to determine whether an input physical design layout pattern includes a hotspot using the machine learning model and to generate a hotspot localization for the input physical design layout pattern;
- a layout adjustment module configured to adjust the input physical design pattern to cure the hotspot;
- and
- a fabrication module configured to trigger fabrication of a circuit in accordance with the adjusted input physical design layout pattern.
Dependencies are inferred from the claim text.