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Very-large-scale integration (VLSI) is the process of creating an integrated circuit (IC) by combining millions or billions of MOS transistors onto a single chip. VLSI began in the 1970s when MOS integrated circuit (metal oxide semiconductor) chips were developed and then widely adopted, enabling complex semiconductor and telecommunications technologies.
Physical verification is a process whereby an integrated circuit layout (IC layout) design is verified via EDA software tools to ensure correct electrical and logical functionality and manufacturability. Verification involves design rule check (DRC), layout versus schematic (LVS), XOR (exclusive OR), antenna checks and electrical rule check ...
In the automated design of integrated circuits, signoff (also written as sign-off) checks is the collective name given to a series of verification steps that the design must pass before it can be taped out. This implies an iterative process involving incremental fixes across the board using one or more check types, and then retesting the design.
These design flows lay down the process and guide-lines/framework for that phase. The physical design flow uses the technology libraries that are provided by the fabrication houses. These technology files provide information regarding the type of silicon wafer used, the standard-cells used, the layout rules (like DRC in VLSI), etc.
The next era began following the publication of "Introduction to VLSI Systems" by Carver Mead and Lynn Conway in 1980; [4] considered the standard textbook for chip design. [5] The result was an increase in the complexity of the chips that could be designed, with improved access to design verification tools that used logic simulation. The chips ...
The Universal Verification Methodology (UVM) is a standardized methodology for verifying integrated circuit designs. UVM is derived mainly from OVM ( Open Verification Methodology ) which was, to a large part, based on the eRM (e Reuse Methodology) for the e verification language developed by Verisity Design in 2001.
VLSI Test Principles and Architectures, by L.T. Wang, C.W. Wu, and X.Q. Wen, Chapter 2, 2006. Elsevier. Electronic Design Automation For Integrated Circuits Handbook, by Lavagno, Martin and Scheffer, ISBN 0-8493-3096-3 A survey of the field of electronic design automation.
There are differences between the steps and methods of the design flow for analog and digital integrated circuits. Nonetheless, a typical VLSI design flow consists of various steps like design conceptualization, chip optimization, logical/physical implementation, and design validation and verification. [1] [2]