Opdagelsen af transistoreffekten i 1948 har igangsat en intensiv teknisk og videnskabelig forskning. Både i Danmark og resten af verden udvikles der forskellige transistorkonstruktioner.
Ifølge denne infoside er bøger udgivet i USA fra før 1964, automatisk overgået til public domain, hvis rettighedshaverne ikke har fornyet copyright hos Library of Congress Copyright Office i det 28. år efter udgivelsen. Undersøg det selv hvis du er det mindste i tvivl:
library.upenn.edu: How Can I Tell Whether a Copyright Was Renewed?:
Citat: "...
First of all, you need to know when renewal matters. In the US, books published before 1964 had to get their copyrights renewed at the Library of Congress Copyright Office in their 28th year, or they'd fall into the public domain. Some books originally published outside the US by non-Americans are exempt from this requirement, and in fact some such books had their copyrights restored recently. If you need to know more about the rules for books published outside the US, see this page from the Copyright Office, explaining recent changes in copyright law imposed by GATT. Basically a work is exempt from renewal requirements if all of the following conditions apply: At least one author was a citizen or resident of a foreign country (outside the US) that's a party to the applicable copyright agreements. (Almost all countries are parties to these agreements.) The work was still under copyright in at least one author's "home country" at the time the GATT copyright agreement went into effect for that country (1 January 1996 for most countries). The work was first published abroad, and not published in the United States until at least 30 days after its first publication abroad.
If you can prove any of these conditions don't apply, and the work was originally published or copyrighted before 1964, then the work had to be renewed in order to stay copyrighted in the US.
..."
Dette site har også litteratur om transistorer (men dog mest om elektronrør): http://www.tubebooks.org/ http://www.tubebooks.org/technical_books_o...
Citat: "...I've found that most of the technical books published before about 1964 never had their copyrights renewed, so now are in the public domain. So I am endeavoring to digitize and post some selected books relating to the "vacuum tube age" of electronics here..."
Jeg syntes man skulle tillægge Lilienfeld æren for, at opfinde den første transistor: Dels, så er det bevist at den fungerer (der er hold, som har bygget en velfungerende Lilienfeld transistor, med samme udstyr, som man mener Lilienfeld havde adgang til), og det er bevist at den fungerede. Man ved, at Bell's hold, der har fået æren for, at opfinde transistoren, havde fuldt kendskab til Lilienfelds transistor. Og der påstås, at de endda også vidste at transistoren fungerede, men af "politiske årsager", valgte at påstå det modsatte. Endeligt, så er de fleste transistorer i dag stort set Lilienfeld transistorer, da hans teknologi, var meget tæt på den integrerede kreds, og det var med Lilienfelds teknologi, muligt at bygge mange transistorer på samme substrat. På grund af Lilienfeld er CMOS teknologien aldrig patenteret, da tegningerne ganske enkelt var kopieret fra Lilienfeld. Der var brugt en anden type halvleder. Men selve strukturen, og topologien, var identisk med nutidens CMOS chips. Man laver desuden eksperimenter med transistorer på tyndfilm - f.eks. de TFT skærme vi har i dag, er så vidt jeg ved baseret på tyndfilms teknologi. Lilienfeld var den rette opfinder.
Alt andet, er historieforfalskning. Håber, at ingeniøren vil lave en rigtig god transistor artikel, når vi kommer til 100 års dagen for Lilienfelds første tyndfilms FET transistor.
Ifølge denne infoside er bøger udgivet i USA fra før 1964, automatisk overgået til public domain, hvis rettighedshaverne ikke har fornyet copyright hos Library of Congress Copyright Office i det 28. år efter udgivelsen. Undersøg det selv hvis du er det mindste i tvivl:
library.upenn.edu: How Can I Tell Whether a Copyright Was Renewed?:
Citat: "...
First of all, you need to know when renewal matters. In the US, books published before 1964 had to get their copyrights renewed at the Library of Congress Copyright Office in their 28th year, or they'd fall into the public domain. Some books originally published outside the US by non-Americans are exempt from this requirement, and in fact some such books had their copyrights restored recently. If you need to know more about the rules for books published outside the US, see this page from the Copyright Office, explaining recent changes in copyright law imposed by GATT. Basically a work is exempt from renewal requirements if all of the following conditions apply:
At least one author was a citizen or resident of a foreign country (outside the US) that's a party to the applicable copyright agreements. (Almost all countries are parties to these agreements.)
The work was still under copyright in at least one author's "home country" at the time the GATT copyright agreement went into effect for that country (1 January 1996 for most countries).
The work was first published abroad, and not published in the United States until at least 30 days after its first publication abroad.
If you can prove any of these conditions don't apply, and the work was originally published or copyrighted before 1964, then the work had to be renewed in order to stay copyrighted in the US.
..."
http://n4trb.com/AmateurRadio/HamDocs.htm
http://n4trb.com/AmateurRadio/Semiconducto...
http://n4trb.com/AmateurRadio/GE_HamNews/g...
http://n4trb.com/AmateurRadio/Semiconducto...
http://n4trb.com/AmateurRadio/Semiconducto...
http://n4trb.com/AmateurRadio/Semiconducto...
transistor typer side 23:
http://n4trb.com/AmateurRadio/Semiconducto...
Dette site har også litteratur om transistorer (men dog mest om elektronrør):
http://www.tubebooks.org/
http://www.tubebooks.org/technical_books_o...
Citat: "...I've found that most of the technical books published before about 1964 never had their copyrights renewed, so now are in the public domain. So I am endeavoring to digitize and post some selected books relating to the "vacuum tube age" of electronics here..."
Gernsback: tetrode - Current gain. Alpha. Beta.
Jeg syntes man skulle tillægge Lilienfeld æren for, at opfinde den første transistor: Dels, så er det bevist at den fungerer (der er hold, som har bygget en velfungerende Lilienfeld transistor, med samme udstyr, som man mener Lilienfeld havde adgang til), og det er bevist at den fungerede. Man ved, at Bell's hold, der har fået æren for, at opfinde transistoren, havde fuldt kendskab til Lilienfelds transistor. Og der påstås, at de endda også vidste at transistoren fungerede, men af "politiske årsager", valgte at påstå det modsatte. Endeligt, så er de fleste transistorer i dag stort set Lilienfeld transistorer, da hans teknologi, var meget tæt på den integrerede kreds, og det var med Lilienfelds teknologi, muligt at bygge mange transistorer på samme substrat. På grund af Lilienfeld er CMOS teknologien aldrig patenteret, da tegningerne ganske enkelt var kopieret fra Lilienfeld. Der var brugt en anden type halvleder. Men selve strukturen, og topologien, var identisk med nutidens CMOS chips. Man laver desuden eksperimenter med transistorer på tyndfilm - f.eks. de TFT skærme vi har i dag, er så vidt jeg ved baseret på tyndfilms teknologi. Lilienfeld var den rette opfinder.
Alt andet, er historieforfalskning. Håber, at ingeniøren vil lave en rigtig god transistor artikel, når vi kommer til 100 års dagen for Lilienfelds første tyndfilms FET transistor.
Lilienfelds transistor ændrede verden. Ikke Bell Labs.
https://en.wikipedia.org/wiki/Julius_Edgar...
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