[Amps] Electron HOLE flow
peter chadwick
g8on at fsmail.net
Wed Aug 28 14:33:26 EDT 2013
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Message Received: Aug 28 2013, 07:31 PM
From: "peter chadwick" <g8on at fsmail.net>
To: "Mike Waters" <mikewate at gmail.com>
Cc:
Subject: Re: [Amps] Electron HOLE flow
Scroggie's 1960 book "Principles of Semiconductors" talks of 'holes', and the idea was old then. I always found it confusing, especially when we got into majority and minority conductors in transistors.
32 years in the semiconductor business and I much prefer tubes!
73
Peter G3RZP
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Message Received: Aug 28 2013, 07:05 PM
From: "Mike Waters" <mikewate at gmail.com>
To: amps at contesting.com
Cc:
Subject: Re: [Amps] Electron HOLE flow
Absolutely it is an illusion. IIRC, that was erroneously introduced into
textbooks around 1970 the same time as the "electricity flows from positive
to negative" nonsense. Whoever came up with the latter never heard of
electron flow in a vacuum tube, among other things.
73, Mike
www.w0btu.com
On Wed, 28 Aug 2013 03:54:29 -0400, K8RI wrote:
>
> >They still refer to "hole flow" in introductory semiconductors.
>
> REPLY:
>
> "Hole flow" is an illusion, much like the moving lights on a theater
> marquee. If it helps to understand things fine, but holes don't move. It's
> more accurate to say a hole is created in one atom and disappears in
> another. For a brief time while the electron is in motion, there are
> actually two holes. Neither one "moves".
>
> 73, Bill W6WRT
>
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