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Search results for: โ€œsemiconductor semiconductorsโ€

  • Semiconductors: outlook in energy transition?

    Semiconductors: outlook in energy transition?

    Semiconductors are an energy technology. And they are transforming the future global energy complex, across AI, solar, electric vehicles, LEDs and other new energies. This short article summarizes our outlook for semiconductors in energy transition, and resultant opportunities across our work.

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  • Semiconductors: conductivity calculations?

    Semiconductors: conductivity calculations?

    This datafile calculates the conductivity and resistivity of semiconductors from first principles, based on their bandgap, doping, electron and hole mobility, temperature, the Fermi-Dirac distribution and the Effective Density of States. Put in any inputs you like to compute the resistance of silicon, germanium or GaAs.

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  • MOSFETs: energy use and power loss calculator?

    MOSFETs: energy use and power loss calculator?

    MOSFETs are fast-acting digital switches, used to transform electricity, across new energies and digital devices. MOSFET power losses are built up from first principles in this data-file, averaging 2% per MOSFET, with a range of 1-10% depending on voltage, switching, on resistance, operating temperature and reverse recovery charge.

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  • Semiconductor physics: piรจce de resistance?

    Semiconductor physics: piรจce de resistance?

    Semiconductors underpin solar panels, electric vehicles and electronics. Hence this 20-page note aims to explain semiconductor physics from first principles: their conductivity and resistance, their use in devices, plus implications for materials value chains and the energy transition itself?

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  • Electromagnetic energy: Planck, Shockley-Queisser, power beaming?

    Electromagnetic energy: Planck, Shockley-Queisser, power beaming?

    Electromagentic radiation is a form of energy, exemplified by light, infrared, ultraviolet, microwaves and radiowaves. What is the energy content of light? How much of it can be captured in a solar module? And what implications? We answer these questions by explaining the Planck Equation and Shockley-Queisser limit from first principles.

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  • Vapor deposition: leading companies?

    Vapor deposition: leading companies?

    This data-file is a screen of leading companies in vapor deposition, manufacturing the key equipment for making PV silicon, solar, AI chips and LED lighting solutions. The market for vapor deposition equipment is worth $50bn pa and growing at 8% per year. Who stands out?

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  • Ideal Power: Bi-Directional Bipolar Junction Transistors?

    Ideal Power: Bi-Directional Bipolar Junction Transistors?

    Bi-Directional Bipolar Junction Transistors are an emerging category of semiconductor-based switching device, that can achieve lower on-state voltage drops than MOSFETs and softer, faster switching than IGBTs, to improve efficiency and lower component count in bi-directional power converters. This data-file screens B-TRAN patents from Ideal Power.

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  • Overview of lasers: by type, market size and efficiency?

    Overview of lasers: by type, market size and efficiency?

    The global laser market is worth $20bn pa, of which half comprises diode lasers mainly used for fiber-optic communications and around 30% is fiber lasers mainly used for cutting, welding and heat-treating materials. These two laser types dominate because of their high, 30-80% efficiencies. This data-file is a brief overview of lasers.

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  • Electrical conductivity: energy transition materials?

    Electrical conductivity: energy transition materials?

    Electrical conductivity of energy transition materials is tabulated in this data-file. ‘The action’ takes place in the range of 10^-8 to 10^-3 Ohm-meters, including silver in solar cells, copper in renewables and EVs, aluminium transmission lines, batteries, and solar semiconductors.

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  • Vacuum pumps: company screen?

    Vacuum pumps: company screen?

    The global market for vacuum pumps is worth $15bn per year, with growing importance for making semiconductors, solar panels and AI chips. This data-file reviews ten leading companies in vacuum pumps, including one European-listed capital goods leader, a European pure-play and a Japanese-listed pure-play.

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