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"Layout Nuggets" – a power-packed series by Semionics designed for VLSI enthusiasts, layout engineers, and silicon thinkers.

student or a seasoned professional, there's something valuable in every slide.
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#vlsi #analoglayout #physicaldesign #semiconductors #semionics #layout #chipdesign #icdesign #eda #learningseries #LayoutEngineers #physicalverification

3️⃣ Scalable 28nm IC implementation of coupled oscillator network featuring tunable topology and complexity
👉 https://arxiv.org/abs/2505.10248

4️⃣ Self Clocked Digital LDO for Cryogenic Power Management in 22nm FDSOI with 98 Percent Efficiency
👉 https://arxiv.org/abs/2505.10234

🔗 Check them out on arXiv. 📄

#arXiv #NeuromorphicComputing #Memristor #CryoCMOS #SoC #VLSI #OscillatorNetworks #LowPowerDesign

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#AnalogLayout #Physicalverification #VLSI #ASIC #ECE #Undergraduates #Masters

Today #VLSI chips are uually CMOS, with a single phase clock, and often contain static circuitry. Early #MOS LSI and VLSI chips were PMOS or NMOS, and usually used two-phase or four-phase dynamic logic. I recently wondered why the four-phase techniques couldn't have been used with only three phases, obtaining most of the benefit of four-plase, but increasing circuit density and speed.
Well, I'm late to the party. It's not well-known, but NCR invented that in 1967:
https://patents.google.com/patent/US3497715A

Switching topics to I/O and game controller support, this week we look briefly at the PIA for Project Ember

The Ember PIA — Initial Design Part 1: Peripheral Interface Adapter
https://skicat.medium.com/21f7f4abb2e8

#cpudesign #retrodev #8bit #16bit #100DaysRTL #DigitalDesign #ElectronicsEngineering #TechInnovation #hardwaredesign #PCBDesign #RetroDev #KiCad #DIYProjects #retrocomputern #Verilog #ALU #8BitALU #VLSI #RTLDesign #FPGA #ASIC #ProcessorDesign

Gamer holding a console gamepad and playing video game

Boards look great! Starting the slow bring up with just the CPU, RAM, and ROM...and, of course, clock circuit and logic analyzer...

#cpudesign #retrodev #8bit #16bit #100DaysRTL #Verilog #ALU #8BitALU #VLSI #RTLDesign #FPGA #ASIC #DigitalDesign #ElectronicsEngineering #TechInnovation #ProcessorDesign #hardwaredesign #PCBDesign #RetroDev #KiCad #DIYProjects #retrocomputer

Next, we'll explore the details of the GPU and the initial design of the first simple text mode display!

The Flame GPU — Initial Design Part 2: Tilesheets, Tilemaps, and Graphics Registers
https://medium.com/the-ember-project/the-flame-gpu-initial-design-part-2-tilesheets-tilemaps-and-graphics-registers-8c638a19ec4f

#cpudesign #retrodev #8bit #16bit #100DaysRTL #Verilog #ALU #8BitALU #VLSI #RTLDesign #FPGA #ASIC #DigitalDesign #ElectronicsEngineering #TechInnovation #ProcessorDesign #hardwaredesign #PCBDesign #RetroDev #KiCad #DIYProjects #retrocomputer

The Ember Console — System Architecture Design: Basic Requirements
https://medium.com/the-ember-project/the-ember-console-system-architecture-design-basic-requirements-97de358a952a
Moving on to the system design, this is an overview of the remaining parts we need to design in order to create a working system capable of playing 80s and 90s-era homebrew video games.

#cpudesign #retrodev #8bit #16bit #100DaysRTL #Verilog #ALU #8BitALU #VLSI #RTLDesign #FPGA #ASIC #DigitalDesign #ElectronicsEngineering #TechInnovation #ProcessorDesign

"Tiny Tapeout is an educational project that makes it easier and cheaper than ever to get your designs manufactured on a real chip!"

https://tinytapeout.com

#opensource #asic #vlsi #chip #tinytapeout

Not every gate is symmetrical w.r.t its inputs. In order to allow asymmetrical gates to be mapped in all cases, all unique permutated AND-INVERTER graphs representing the gate must be present in the pattern matching set. This is obviously a problem for tomorrow..

#VLSI #ASIC #TechnologyMapping

Wanted to play around with #VLSI technology mapping using AND-INVERTER graphs. I got as far as reading a cell library in GENLIB format. Now I need to convert the boolean logic expressions into A-I graphs using DeMorgan substitutions. Running out of steam though.

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#semionics #AnalogLayout #Physicalverification #PhysicalDesign #Careercounselling #VLSI #ASIC #ECE #Undergraduates #Masters #analogDesign #Cadence #Calibre #DRC #LVS #Synopsys #microelectronics #electronics

Learn the concepts of ASIC Physical Verification in detail.
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#semionics #AnalogLayout #Physicalverification #PhysicalDesign #Careercounselling #VLSI #ASIC #ECE #Undergraduates #Masters #analogDesign #Cadence #Calibre #DRC #LVS

The #Python/Scipy sparse linalg solver couldn't solve the quadratic placement problem for the industry standard 'adaptec1' benchmark. It ran out of memory (16 GB of RAM). This isn't even a large problem by today's standards. #vlsi #algebra

Lets learn about Capacitors in Analog Layouts, difference between them, their usage and How they are made ? ..!!

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@rafetoots This thread made me think: besides learning a programming language in depth, I wonder about your knowledge of version control (#git, #github), editors/IDE's (#codium), operating systems (#windows, #linux, #wsl), embedded (#arduino, #pi), hardware (#kicad, #freecad), processor design (#fpga, #vlsi, https://www.nand2tetris.org/ maybe), sub-atomic-physics (joking), and so much more!