The patent's inventors are
This patent was filed on
From the background information supplied by the inventors, news correspondents obtained the following quote: "The invention relates to technology for designing and verifying an integrated circuit ('IC') or electronic circuit design.
"A semiconductor integrated circuit (IC) or an electronic circuit has a large number of electronic components, such as transistors, logic gates, diodes, wires, etc., that are fabricated by forming layers of different materials and of different geometric shapes on various regions of a silicon wafer.
"Many phases of physical design may be performed with computer aided design (CAD) tools or electronic design automation (EDA) systems. To design an electronic circuit, a designer first creates high level behavior descriptions of the electronic circuit device using a high-level hardware design language. An EDA system typically receives the high level behavior descriptions of the electronic circuit device and translates this high-level design language into netlists of various levels of abstraction using a computer synthesis process. A netlist describes interconnections of nodes and components on the chip and includes information on circuit primitives such as transistors and diodes, their sizes and interconnections, for example.
"An electronic circuit designer may use a set of EDA application programs to create a physical electronic circuit design layout from a logical circuit design. The EDA application uses geometric shapes of different materials to create the designs of the various electrical components in an electronic circuit and to represent electronic circuit components as geometric objects with varying shapes and sizes. Typically, geometric information about the placement of the nodes and components onto the chip is determined by a placement process and a routing process. The placement process is a process for placing electronic component design and/or circuit design blocks on the chip and the routing process is the process for creating interconnections between the blocks and components according to the specified netlist. In a typical electronic circuit design flow, routing involves assigning wires and vias to create a circuit connection.
"In the Integrated Circuit (IC) design, electronic components and wiring are represented by a set of geometric shapes and patterns from a physical perspective. Electronic design automation (EDA) tools interact with these shapes and patterns throughout the IC design and verification process. The electronic circuit design then goes through various stages of verification and optimization via a set of EDA Aesting and analysis tools. Verification may include, for example, design rule checking (DRC) to verify whether or not various electronic circuit parameters comply with various design rules that are established for the respective electronic circuit parameters. For example, the patterns and shapes in the design are routinely checked with the Design Rules--Design Rules Checking (DRC). Design rules are a series of parameters provided by semiconductor manufacturers, specifying geometric and connectivity restrictions to ensure sufficient margins to account for variability in semiconductor manufacturing processes.
Most Popular Stories
- Twitter Names Woman to Board
- NSA Tracks 5 Billion Cellphone Records a Day
- Nelson Mandela Dies After Momentous Life
- Ford Mustang Still Packs Power
- W.H. Corrects Itself on Unclegate
- Nelson Mandela Dead at 95
- Fast-Food Workers Want $15 an Hour
- Roybal-Allard Tours Gordon Brush Plant
- Aspen Contracting Adding 300 Jobs
- Pope Francis Says He'll Fight Child Sex Abuse