Process for fabricating an integrated circuit comprising an analog block and a digital block, and corresponding integrated circuit
AssigneeSTMicroelectronics (Rousset) SAS
InventorGuilhem Bouton
Life of this patent
Estimating the term…
Abstract
The integrated circuit comprises an analog block and a digital block in and/or on the same substrate. At least part of a first integrated-circuit portion (BA2) corresponding to the analog block is produced in a native technology and a second integrated-circuit portion (BN2) corresponding to said digital block, is produced in a shrunk technological version associated with said native technology.
Claims8
A process for fabricating an integrated circuit comprising an analog block and a digital block, the process comprising:
- designing the analog block and the digital block to be on a same substrate;
- the designing of the analog block and the designing of the digital block comprising taking each design from a library of components, the library of components defined in a native technology and having an associated shrunken technological version for
- the library of components;
- the designing of the analog block comprising
- generating a first initial file representative of the analog block in the native technology, and
- constructing, based on the first initial file, a first intermediate file representative in said native technology of at least part of the analog block and a dimensional reduction in contacting areas on electrically active regions and electrically conductive interconnects between metallization levels;
- the designing of the digital block comprising
- generating a second initial file representative of the digital block in the native technology, and
- constructing, based on the second initial file, a second intermediate file representative in said shrunken technological version of all of said digital block;
- and
- generating at least one mask file based upon the analog and digital blocks and a combination of the first intermediate file and the second intermediate file.
A process for fabricating an integrated circuit comprising an analog block and a digital block, the process comprising:
- designing the analog block from a library of components defined in a native technology within a template;
- designing the digital block to overlap the template from a library of components defined in the native technology;
- the analog and digital blocks to be located on a same substrate as said template;
- the designing of the analog and digital blocks comprising
- generating a first initial file representative of the analog block in the native technology,
- constructing, based on the first initial file, a first intermediate file representative in said native technology of at least part of the analog block and a dimensional reduction in contacting areas on electrically active regions and electrically conductive interconnects between metallization levels,
- generating a second initial file representative of the digital block in the native technology, and
- constructing, based on the second initial file, a second intermediate file representative in said shrunken technological version of all of said digital block;
- and
- generating at least one mask file based upon the analog and digital blocks and a combination of the first intermediate file and the second intermediate file.
A process for designing an integrated circuit comprising an analog block and a digital block, the process comprising:
- designing the analog block and the digital block;
- at least portions of the design of the analog block and at least portions of the design of the digital block being taken from a library of components defined in a native technology having an associated shrunken technological version;
- generating a first initial file representative of the analog block in the native technology;
- constructing, based on the first initial file, a first intermediate file representative in said native technology of at least part of the analog block and a dimensional reduction in contacting areas on electrically active regions and electrically conductive interconnects between metallization levels;
- generating a second initial file representative of the digital block in the native technology;
- constructing, based on the second initial file, a second intermediate file representative in said shrunken technological version of all of said digital block;
- and
- generating at least one mask file based upon the analog and digital blocks and a combination of the first intermediate file and the second intermediate file.
A process for designing an integrated circuit comprising an analog block and a digital block, the process comprising:
- designing the analog block from a library of components defined in a native technology within a template;
- designing the digital block to overlap the template from a library of components defined in the native technology;
- designing the analog and digital blocks on a same substrate by
- at least
- generating a first initial file representative of the analog block in the native technology,
- constructing, based on the first initial file, a first intermediate file representative in said native technology of at least part of the analog block and a dimensional reduction in contacting areas on electrically active regions and electrically conductive interconnects between metallization levels,
- generating a second initial file representative of the digital block in the native technology, and
- constructing, based on the second initial file, a second intermediate file representative in said shrunken technological version of all of said digital block;
- and
- generating at least one mask file based upon the analog and digital blocks and a combination of the first intermediate file and the second intermediate file.
Dependencies are inferred from the claim text.