What is schematic and layout in VLSI?

What is schematic and layout in VLSI?

Definition. Layout Versus Schematic (LVS) checking compares the extracted netlist from the layout to the original schematic netlist to determine if they match. The comparison check is considered clean if all the devices and nets of the schematic match the devices and the nets of the layout.

What is DRC and LVS in VLSI?

Design Rule Check (DRC) -Design Rule Examples. -Base & Metal DRC. Layout v/s Schematic (LVS) -LVS Flow.

What is LVS rule deck?

A LVS rule deck is a set of code, which is written in Standard Verification Rule Format (SVRF) or TCL Verification Format (TVF), which guides the verification tool to extract the devices and connectivity of the integrated circuit.

What is schematic netlist in VLSI?

Schematic netlist: It is used as a source netlist for LVS comparison. Rule deck file: Rule deck file consists of required instructions and files to guide tool for performing LVS. This rule deck file also contains a layer definition, which is useful for extraction.

What is difference between schematic and layout?

A schematic contains a “netlist” behind the scenes, which is a simple data structure that lists of every connection in the design, as specified by the schematic drawing. In contrast, the layout is a drawing that depicts the physical connections between components.

What is schematic layout?

A schematic diagram is a fundamental two-dimensional circuit representation showing the functionality and connectivity between different electrical components. It is vital for a PCB designer to get familiarized with the schematic symbols that represent the components on a schematic diagram.

What is the purpose of a schematic?

The main purpose of a schematic diagram is to emphasize circuit elements and how their functions relate to each other. Schematics are an extremely valuable troubleshooting tool that identify which components are in series or parallel and how they connect to one another.

What is schematic in VLSI?

The schematic is a drawing that depicts and specifies the logical connections between components on a PCB.

What is DRC layout design?

Design Rule Checking (DRC) verifies as to whether a specific design meets the constraints imposed by the process technology to be used for its manufacturing. DRC checking is an essential part of the physical design flow and ensures the design meets manufacturing requirements and will not result in a chip failure.

What is the difference between RTL level and gate level?

Algorithms are unsynthesizable, RTL is the input to synthesis, gate level is the output from synthesis. The difference between these levels of abstraction can be understood in terms of timing.