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ECO Should Not Stand For Extended Challenge Order


There’s an old saying that the first 90% of a task takes 90% of the schedule, and the remaining 10% takes the other 90% of the time. In chip development, design-signoff closure has become one such task. Ideally, when the design has been placed and routed (physical implementation), final analysis of timing and other metrics is performed and an engineering change order (ECO) file is issued to t... » read more

Overcoming The Growing Challenge Of Dynamic IR-Drop


IR-drop has always been somewhat of an issue in chip design; voltage decreases as current travels along any path with any resistance. Ohm’s Law is likely the first thing that every electrical engineer learns. But the challenges related to IR-drop (sometimes called voltage drop) have increased considerably in recent years, especially the dynamic IR-drop in the power/ground grid as circuits swi... » read more

Preparing For 3D-ICs


Experts at the Table: Semiconductor Engineering sat down to discuss the changes in design tools and methodologies needed for 3D-ICs, with Sooyong Kim, director and product specialist for 3D-IC at Ansys; Kenneth Larsen, product marketing director at Synopsys; Tony Mastroianni, advanced packaging solutions director at Siemens EDA; and Vinay Patwardhan, product management group director at Cadence... » read more

Challenges With Stacking Memory On Logic


Experts at the Table: Semiconductor Engineering sat down to discuss the changes in design tools and methodologies needed for 3D-ICs, with Sooyong Kim, director and product specialist for 3D-IC at Ansys; Kenneth Larsen, product marketing director at Synopsys; Tony Mastroianni, advanced packaging solutions director at Siemens EDA; and Vinay Patwardhan, product management group director at Cadence... » read more

Shifting Left In P&R With In-Design Signoff Fill For Faster And More Accurate Tapeouts


Place and route (P&R) engineers are always on the lookout for ways to optimize their design flows to ensure designs meet their design power, performance, and area (PPA) goals while also hitting tapeout deadlines. The introduction of the Calibre RealTime Digital interface made Calibre nmDRC and Calibre nmDRC Recon design rule checking (DRC) verification available during the P&R process t... » read more

Aprisa Place-And-Route For Low-Power SoCs


The Aprisa digital design software helps designers address the many challenges of low-power designs. Aprisa is the most flexible IC place-and-route tool on the market—it accepts all industry-standard power formats, has excellent correlation to third-party signoff tools, and is easy to install, set up, and use. With effective technology and impressive usability, the Aprisa software ensures cos... » read more

Tape Out On Time With Demand Signoff DRC In P&R


Physical characteristics of devices have become progressively more complex even as design companies pack more devices on each die. Combining these characteristics with ever more demanding chip power, performance, and area (PPA) goals not only result in increased resource utilization but also challenge existing tools/flows/techniques. Adding on-demand signoff-quality DRC verification inside P&R ... » read more

Signoff DRC In P&R Lets You Get Better Products To Market Faster


Trust is generally a reflection of quality. You trust someone, be it an individual or a company, because they have, over time, consistently performed high-quality work. You trust a product because your past experience with that product has been positive, or the experiences of lots of other people have been positive. With that said, quality comes in shades and percentages. Most of us will happil... » read more

MaxLinear And Calibre RealTime Digital


MaxLinear implemented the Calibre RealTime Digital interface for fast, iterative, signoff DRC checking and fixing during floorplanning and placement. They not only reduce the total of batch DRC iterations, but also eliminate potential late-stage issues during final physical verification signoff that are exponentially harder to fix. Adopting the Calibre RealTime Digital interface enabled MaxLine... » read more

Optimizing Tool Integration Is Essential To Design Success


By James Paris and Armen Asatryan The relationship between a place and route (P&R) application and the collection of system-on-chip (SoC) design implementation, analysis, and verification methodologies and tools has always been very much a two-way street. The P&R system is the base, if you will, of design implementation—it takes the virtual and makes it physical. However, it is use... » read more

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