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  • Commercially available jumctionless transistor

    From amal banerjee@21:1/5 to All on Fri May 27 04:15:03 2022
    All you electronics|semiconductor gurus here. Any commercially available junctionless transistors ? Kist curious .

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  • From Phil Hobbs@21:1/5 to amal banerjee on Fri May 27 11:28:26 2022
    amal banerjee wrote:
    All you electronics|semiconductor gurus here. Any commercially available junctionless transistors ? Kist curious .


    Well, ISTM that ideally a lateral MOSFET could be made without a junction.

    Cheers

    Phil Hobbs

    --
    Dr Philip C D Hobbs
    Principal Consultant
    ElectroOptical Innovations LLC / Hobbs ElectroOptics
    Optics, Electro-optics, Photonics, Analog Electronics
    Briarcliff Manor NY 10510

    http://electrooptical.net
    http://hobbs-eo.com

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  • From Piotr Wyderski@21:1/5 to Phil Hobbs on Fri May 27 18:22:57 2022
    Phil Hobbs wrote:

    All you electronics|semiconductor gurus here. Any commercially available
    junctionless transistors ? Kist curious .


    Well, ISTM that ideally a lateral MOSFET could be made without a junction.

    Is the OP asking about native MOSFETs? Then EPADs might be a decent approximation, some still available at Mouser/Digikey. Another option
    would connecting a BC547 directly to mains to make it truly,
    Sevres-certified junctionless, but something tells me it's not the case.

    Best reagds, Piotr

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  • From whit3rd@21:1/5 to daku...@gmail.com on Fri May 27 11:08:11 2022
    On Friday, May 27, 2022 at 4:15:08 AM UTC-7, daku...@gmail.com wrote:
    All you electronics|semiconductor gurus here. Any commercially available junctionless transistors ? Kist curious .

    The traditional way to implement transresistance without a junction is
    with a triode vacuum tube. Plain old bipolar junction transistors
    are the high-gain winners nowadays, and MOSFETs are the high-density
    winners. What design win can a junctionless transistor achieve?
    None, that I know of.

    It's likely to remain a lab curiosity for a few more decades.

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  • From John Walliker@21:1/5 to All on Fri May 27 12:30:18 2022
    On Friday, 27 May 2022 at 19:08:15 UTC+1, whit3rd wrote:
    On Friday, May 27, 2022 at 4:15:08 AM UTC-7, daku...@gmail.com wrote:
    All you electronics|semiconductor gurus here. Any commercially available junctionless transistors ? Kist curious .
    The traditional way to implement transresistance without a junction is
    with a triode vacuum tube. Plain old bipolar junction transistors
    are the high-gain winners nowadays, and MOSFETs are the high-density
    winners. What design win can a junctionless transistor achieve?
    None, that I know of.

    It's likely to remain a lab curiosity for a few more decades.

    Don;t forget fluid logic gates. They have been around for over a century. https://en.wikipedia.org/wiki/Fluidics

    John

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  • From Rich S@21:1/5 to Piotr Wyderski on Mon May 30 16:31:07 2022
    On Friday, May 27, 2022 at 4:23:17 PM UTC, Piotr Wyderski wrote:
    Phil Hobbs wrote:

    All you electronics|semiconductor gurus here. Any commercially available >> junctionless transistors ? Kist curious .


    Well, ISTM that ideally a lateral MOSFET could be made without a junction.
    Is the OP asking about native MOSFETs? Then EPADs might be a decent approximation, some still available at Mouser/Digikey. Another option
    would connecting a BC547 directly to mains to make it truly,
    Sevres-certified junctionless, but something tells me it's not the case.

    Best reagds, Piotr

    In my youth, I (unintentionally) created many
    such "junction-less" transistors.

    I did not see the value of keeping them....
    regards, RS

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