Standard cell library design method, design device, standard cell library and CMOS image sensing chip

Abstract

The invention provides a standard cell library design method, a design device, a standard cell library and a CMOS image sensing chip. The method comprises the steps that the functions of the standardcell library are defined; a 3.3V device supporting 3.3V voltage is used as a design basis of a layout template of the standard cell library, and layout content suitable for the layout template of thestandard cell library of the 3.3V device is defined; a circuit of the standard cell library is designed; the layout template is drawn according to the layout content; physical feature information andtime sequence feature information of the layout template are extracted; according to GDS data, the physical feature information and the time sequence feature information, a model and a document of thestandard cell library are generated; and the standard cell library is verified through a test. Through the method, communication between a peripheral circuit and a core circuit of the CMOS image sensing chip based on digital logic process design can be realized, speed and precision losses brought by a level switching circuit are reduced, and system speed and performance stability are improved.

Description

technical field [0001] The application relates to the field of image processing, in particular to a standard cell library design method, a design device, a standard cell library and a CMOS image sensor chip. Background technique [0002] With the rapid development of Moore's Law, integrated circuits have entered the nanometer process node, and the integration and complexity of chips are increasing. The semi-custom chip design method based on the standard cell library has been widely used in the design of ultra-large-scale digital chips. The standard cell library is a general term for the unit symbol library, circuit structure library, function description library, layout library, timing power library, physical view library, design rules and interconnection parasitic parameter model library required for integrated circuit design. [0003] The standard cell library is the basis of integrated circuit design. From system behavior description, logic synthesis, logic function simu...

AI Technical Summary

Problems solved by technology

This makes if the standard cell library of the digital logic process is used when designing the peripheral circuit of the CMOS image sensor chip, the level conversion unit circuit is required to realize the docking with the core circuit of the CMOS image sensor chip, so that the design has speed and loss of precision

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