The Hardware Podcast with Fexingo: Chips, Devices, and Electronics Engineering Conversations

Fexingo

Lucas and Luna sit down at a lab bench cluttered with oscilloscopes and prototype boards to talk about the engineering decisions that shape the chips powering modern life. Each episode takes one piece of hardware — a new RISC-V core, a GaN power amplifier, a MEMS accelerometer — and examines its design trade-offs, yield challenges, and market positioning. They discuss why Intel’s 20A node matters for foundry customers, how TSMC’s CoWoS packaging affects AI accelerator supply, and what the CHIPS Act subsidies mean for domestic fab construction. Lucas brings the component-level knowledge (threshold voltages, die sizes, lithography steps); Luna pushes on the system-level implications (thermal constraints, software compatibility, supply chain risk). The listener is someone who reads datasheets for fun, follows EDA tool announcements, or needs to decide between an FPGA and an ASIC for their next product. No hot takes on Apple’s latest chip — just a careful look at what the die shot reveals and whether the architecture will trickle down to mid-range devices. Can a country really onshore advanced semiconductor manufacturing in a decade? How do you test a chip with billions of transistors? And what does the shift to chiplets mean for the engineer designing a PCB today? #SemiconductorIndustry #ChipDesign #HardwareEngineering #Electronics #TSMC #Intel #RISCV #GaN #MEMS #EDA #ASIC #FPGA #CHIPSAct #DieShot #EngineeringConversations #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

  1. 1d ago

    How Chips Use On-Chip Microfluidic Cooling for Dense Heat Management

    Episode 130 of The Hardware Podcast dives into on-chip microfluidic cooling — a technology where tiny channels etched directly into silicon circulate coolant to remove heat from high-density chip hotspots. Lucas and Luna explore how researchers at Georgia Tech and IBM have demonstrated cooling power densities exceeding 1 kW per square centimeter, using water or dielectric fluids pumped through micron-wide channels. They discuss the trade-offs: added fabrication complexity, pump reliability, and the challenge of sealing fluids at the chip edge. The hosts also look ahead to commercial adoption in data center GPUs and power modules for electric vehicles, where air cooling and even vapor chambers hit physical limits. One concrete takeaway: microfluidic cooling could enable 3D-stacked chips that would otherwise melt under their own heat. #OnChipMicrofluidicCooling #ChipCooling #HardwareEngineering #Semiconductors #ThermalManagement #DataCenterGPUs #ElectricVehicles #3DStackedChips #SiliconPhotonics #Microfluidics #HeatDissipation #ChipDesign #Technology #HardwarePodcast #FexingoBusiness #BusinessPodcast #LucasAndLuna #ElectronicsEngineering Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip Microfluidic Cooling for Dense Heat Management

  2. 1d ago

    How Chips Use On-Chip Atomic Clocks for Precision Timing

    In this episode of The Hardware Podcast, Lucas and Luna dive into the world of chip-scale atomic clocks (CSACs). They explore how these miniature timekeepers, shrinking a technology once confined to laboratory racks and satellites into a chip no bigger than a grain of rice, are enabling ultra-precise timing for applications like 5G network synchronization, financial trading timestamping, and autonomous vehicle coordination. Lucas breaks down the physics: how a tiny vapor cell, a laser, and a microwave cavity lock onto the hyperfine transition of cesium atoms, achieving drift of less than a microsecond per month. They discuss Microchip Technology's CSAC line, the trade-offs between size, power consumption, and stability, and why even a nanosecond of timing error can cause massive disruptions in modern infrastructure. The conversation also touches on the challenge of integrating atomic clocks into consumer devices, and what the future holds as chip-scale optical clocks emerge from research labs. Plus, a brief note on how listener support keeps the podcast ad-free. #ChipScaleAtomicClocks #CSAC #PrecisionTiming #AtomicClock #MicrochipTechnology #5G #FinancialTrading #AutonomousVehicles #Cesium #HyperfineTransition #TimeSynchronization #OpticalClock #Photonics #NIST #GPSDenied #Hardware #Technology #FexingoBusiness Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip Atomic Clocks for Precision Timing

  3. 2d ago

    How Chips Are Using On-Chip Acoustic Resonators for RF Filtering

    In this episode, Lucas and Luna explore how on-chip acoustic resonators are transforming radio frequency filtering in modern electronics. They dive into the mechanics of bulk acoustic wave and surface acoustic wave resonators, explaining how these tiny components enable the multi-band connectivity in your smartphone. The discussion covers the shift from discrete filters to integrated solutions, with a focus on how companies like Qualcomm and Skyworks are leveraging thin-film piezoelectric materials to shrink filter size while improving performance. Lucas breaks down the trade-offs between FBAR and SAW technologies, while Luna questions the durability of these resonators in 5G mmWave applications. They also touch on the role of acoustic resonators in enabling carrier aggregation and reducing signal interference. By the end, you'll understand why these 'invisible' chips are critical for the wireless world and how they might evolve for 6G. #OnChipAcousticResonators #RFFiltering #BulkAcousticWave #SurfaceAcousticWave #FBAR #SAW #5G #Wireless #Piezoelectric #ThinFilm #Qualcomm #Skyworks #CarrierAggregation #mmWave #6G #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

    How Chips Are Using On-Chip Acoustic Resonators for RF Filtering

  4. 2d ago

    How Chips Use On-Chip MicroLEDs for Neural Stimulation

    In this episode, Lucas and Luna explore a cutting-edge application of on-chip microLED arrays: optogenetic neural stimulation. They dive into how these microscale light emitters are being integrated directly onto silicon chips to control neurons with unprecedented precision, potentially transforming treatments for Parkinson's disease, chronic pain, and spinal cord injuries. The discussion centers on a 2025 prototype from Imec that achieved single-neuron targeting with 10-micrometer microLEDs, and the engineering challenges of heat dissipation, biocompatibility, and wireless power. Lucas explains how the chip uses a CMOS backplane to individually address thousands of microLEDs, enabling complex spatiotemporal patterns of light. Luna raises the question of long-term tissue response and the road to clinical trials. The episode also touches on competing approaches like ultrasound and DBS, and what the next five years might look like for neural interfaces. #OnChipMicroLEDs #NeuralStimulation #Optogenetics #Imec #CMOS #Bioelectronics #NeuralInterface #ParkinsonsDisease #ChronicPain #SpinalCordInjury #DeepBrainStimulation #PrecisionMedicine #Biocompatibility #WirelessPower #MicroLEDArray #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip MicroLEDs for Neural Stimulation

  5. 3d ago

    How Chips Use On-Chip Triboelectric Generators for Energy Harvesting

    In this episode, Lucas and Luna explore how on-chip triboelectric generators are enabling energy harvesting from mechanical motion—vibration, typing, footsteps—to power sensors and IoT devices without batteries. They dive into the physics of the triboelectric effect, the specific challenge of integrating nanoscale generators onto silicon, and a real-world case from a 2026 paper out of the University of Michigan achieving 3.2 microwatts per square millimeter from vibration. The hosts also discuss commercial use cases from industrial vibration monitoring to self-powered wearables. #TriboelectricGenerator #EnergyHarvesting #IoT #SelfPoweredSensors #VibrationEnergy #Nanogenerator #UniversityOfMichigan #ChipDesign #Semiconductor #PowerManagement #Wearables #IndustrialIoT #Microelectronics #CleanEnergy #Technology #FexingoBusiness #BusinessPodcast #HardwarePodcast Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip Triboelectric Generators for Energy Harvesting

  6. 3d ago

    How Chips Use On-Chip Rad-Hard Design for Space Electronics

    In this episode of The Hardware Podcast, Lucas and Luna explore on-chip radiation-hardened design for space electronics. They focus on how the European Space Agency's latest microcontroller, the LEON5, uses triple modular redundancy and silicon-on-insulator technology to survive the harsh radiation environment of low-Earth orbit and deep space. They break down the specific failure mechanisms—single-event upsets and latch-ups—and how rad-hard chips differ from traditional terrestrial processors. The conversation also touches on the cost implications and whether rad-hard trickles down to critical infrastructure on Earth. If you've ever wondered how microchips survive in space, this episode delivers a concrete look at the engineering trade-offs. #SpaceElectronics #RadHard #LEON5 #ESA #TripleModularRedundancy #SiliconOnInsulator #SingleEventUpset #LatchUp #Microcontrollers #AerospaceEngineering #RadiationHardening #Technology #HardwarePodcast #FexingoBusiness #BusinessPodcast #ChipDesign #Semiconductors #SpaceTech Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip Rad-Hard Design for Space Electronics

  7. 4d ago

    How Chips Use On-Chip Optical Interconnects for Speed

    Lucas and Luna explore how on-chip optical interconnects are breaking the bandwidth bottleneck in data centers and AI accelerators. They focus on a specific 2025 breakthrough: a CMOS-compatible silicon photonic transceiver from a joint Ayar Labs and Intel prototype, capable of 2 Tbps per fiber. Lucas explains why electrical interconnects hit a wall around 50 pJ/bit, while optical links drop below 1 pJ/bit. Luna questions integration challenges—thermal stability, laser packaging—and Lucas walks through the hybrid laser bonding technique. They tie it to the exploding demand for memory bandwidth in large language model training, and discuss why this tech is finally ready for production, with volume sampling expected in 2027. No fluff, just concrete engineering. #OnChipOpticalInterconnects #SiliconPhotonics #AyarLabs #Intel #DataCenter #AIAccelerators #BandwidthBottleneck #CMOSCompatible #HybridLaserBonding #MemoryBandwidth #LLMTraining #2Tbps #PhotonicTransceiver #ChipletInterconnect #Technology #Engineering #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip Optical Interconnects for Speed

  8. 4d ago

    How Chips Use On-Chip Microbatteries for Autonomous Sensor Power

    In this episode of The Hardware Podcast, Lucas and Luna explore the emerging technology of on-chip microbatteries—tiny energy storage units integrated directly onto silicon chips. They discuss how researchers at MIT and imec are developing solid-state microbatteries with energy densities up to 100 microwatt-hours per square millimeter, enabling self-powered IoT sensors that could run for years without battery changes. The hosts examine the key challenges: thermal integration during chip fabrication, electrolyte materials that withstand semiconductor processing, and the trade-off between capacity and footprint. They also highlight a real-world application: a smart building sensor prototype that uses an on-chip microbattery to transmit temperature data every 15 minutes for over a decade. The episode concludes with a look at how this could impact medical implants, environmental monitoring, and ultra-low-power edge computing. #OnChipMicrobatteries #EnergyHarvesting #IoT #Semiconductors #SolidStateBatteries #MIT #Imec #AutonomousSensors #ChipIntegration #LowPower #MedicalImplants #EdgeComputing #BatteryTechnology #SmartBuildings #Nanotechnology #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

    How Chips Use On-Chip Microbatteries for Autonomous Sensor Power
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About

Lucas and Luna sit down at a lab bench cluttered with oscilloscopes and prototype boards to talk about the engineering decisions that shape the chips powering modern life. Each episode takes one piece of hardware — a new RISC-V core, a GaN power amplifier, a MEMS accelerometer — and examines its design trade-offs, yield challenges, and market positioning. They discuss why Intel’s 20A node matters for foundry customers, how TSMC’s CoWoS packaging affects AI accelerator supply, and what the CHIPS Act subsidies mean for domestic fab construction. Lucas brings the component-level knowledge (threshold voltages, die sizes, lithography steps); Luna pushes on the system-level implications (thermal constraints, software compatibility, supply chain risk). The listener is someone who reads datasheets for fun, follows EDA tool announcements, or needs to decide between an FPGA and an ASIC for their next product. No hot takes on Apple’s latest chip — just a careful look at what the die shot reveals and whether the architecture will trickle down to mid-range devices. Can a country really onshore advanced semiconductor manufacturing in a decade? How do you test a chip with billions of transistors? And what does the shift to chiplets mean for the engineer designing a PCB today? #SemiconductorIndustry #ChipDesign #HardwareEngineering #Electronics #TSMC #Intel #RISCV #GaN #MEMS #EDA #ASIC #FPGA #CHIPSAct #DieShot #EngineeringConversations #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

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