tag: voltage

Heat-Related Issues Impact Reliability In Advanced IC Designs
By Ann Mutschler - 18 Jul, 2024 - Comments: 1

Heat is becoming a much bigger problem in advanced-node chips and packages, causing critical electrons to leak out of DRAM, timing and reliability issues in 3D-ICs, and accelerated aging that are unique to different workloads. All types of circuitry are vulnerable to thermal effects. It can slow the movement of the electrons through wires, cause electromigration that shortens the lifespan of... » read more

Staying Within The Margins
By Barry Pangrle - 28 Mar, 2024 - Comments: 0

Last March I wrote an article called Squeezing the Margins that’s about a design that used an adaptive clocking scheme to keep the performance of a system high while simultaneously keeping the temperature below a specified maximum. Last August we looked at Managing Voltage Variation and how an adaptive clocking scheme could be used to manage dynamic voltage drop to maximize system performance... » read more

What Data Center Chipmakers Can Learn From Automotive
By Anne Meixner - 11 Apr, 2023 - Comments: 2

Automotive OEMs are demanding their semiconductor suppliers achieve a nearly unmeasurable target of 10 defective parts per billion (DPPB). Whether this is realistic remains to be seen, but systems companies are looking to emulate that level of quality for their data center SoCs. Building to that quality level is more expensive up front, although ultimately it can save costs versus having to ... » read more

Antiferroelectric negative capacitance from a structural phase transition in zirconia
By Technical Paper Link - 12 Apr, 2022 - Comments: 0

New research paper from 24-person research team from Berkeley, Georgia Tech, MIT, and other institutions. Abstract "Crystalline materials with broken inversion symmetry can exhibit a spontaneous electric polarization, which originates from a microscopic electric dipole moment. Long-range polar or anti-polar order of such permanent dipoles gives rise to ferroelectricity or antiferroelectrici... » read more

Optimizing Power Supply
By Cadence - 10 Feb, 2021 - Comments: 0

Any electrical engineer knows providing power to your board is a key feature in PCB design. While most boards can be functional, their true quality shines when the perfect level of power to components is achieved. Building and designing better power supplies is the best way to ensure the end-product has full life-cycle potential. But how do we ensure we can convert a (potentially variable) i... » read more

Where Timing And Voltage Intersect
By Ed Sperling - 14 Feb, 2020 - Comments: 0

João Geada, chief technologist at ANSYS, talks about the limitations for power delivery networks and what processors can handle, why the current solutions to these issues are causing failures, and how voltage reduction can affect timing. » read more

Non-Volatile Memory Tradeoffs Intensify
By Ann Mutschler - 22 Jan, 2020 - Comments: 0

Non-volatile memory is becoming more complicated at advanced nodes, where price, speed, power and utilization are feeding into some very application-specific tradeoffs about where to place that memory. NVM can be embedded into a chip, or it can be moved off chip with various types of interconnect technology. But that decision is more complicated than it might first appear. It depends on the ... » read more

Multi-Physics At 5/3nm
By Ed Sperling - 11 Apr, 2019 - Comments: 0

Joao Geada, chief technologist at ANSYS, talks about why timing, process, voltage, and temperature no longer can be considered independently of each other at the most advanced nodes, and why it becomes more critical as designs shrink from 7nm to 5nm and eventually to 3nm. In addition, more chips are being customized, and more of those chips are part of broader systems that may involve an AI com... » read more

Power Issues Grow For Cloud Chips
By Ann Mutschler - 11 Oct, 2018 - Comments: 0

Performance levels in traditional or hyperscale data centers are being limited by power and heat caused by an increasing number of processors, memory, disk and operating systems within servers. The problem is so complex and intertwined, though, that solving it requires a series of steps that hopefully add up to a significant reduction across a system. But at 7nm and below, predicting exactly... » read more

5nm Design Progress
By Ann Mutschler - 17 Jul, 2018 - Comments: 1

Activity surrounding the 5nm manufacturing process node is quickly ramping, creating a better picture of the myriad and increasingly complex design issues that must be overcome. Progress at each new node after 28nm has required an increasingly tight partnership between the foundries, which are developing new processes and rule decks, along with EDA and IP vendors, which are adding tools, met... » read more

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