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In return, Bell obtained a license to Philips’ Ferroxcube ferrite material.
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In 1947 Philips signed a cross licensing deal with Bell Laboratories securing a royalty free non exclusive license to Bell’s patents in the fields of telephone, appliances, systems and tubes. For example, after reading the article, Verweij said to Hazeu, who was the commercial director of the Electron Tubes product division: “The content of this article will shake your department to its foundations!”
The importance of this breakthrough was not lost on Philips. However, this group provided an important platform and the focus as Philips positioned itself for the semiconductor era.īell Laboratories announced its point-contact transistor in June 1948: “An amazingly simple device, capable of performing efficiently nearly all the functions of an ordinary vacuum tube, was demonstrated for the first time yesterday at Bell Telephone Laboratories where it was invented.” The press release was coupled with three short papers by Bardeen, Brattain, Shockley and Pearson in the letters to the Physical Review for June 1948 of which the first of these set out in the briefest terms the geometry, performance and theory of the device. But it had no success with its research in solid state amplifiers and field effect devices. It worked on the known semiconductors of the time: copper oxide and selenium and developed a selenium diode that went into production at the Electron Tubes product division. Philips had formed a dedicated solid state physics group within NatLab in the 1930s. Physics (vacuum tubes and microscopy) directed by CasimirĬhemistry (materials, semiconductors and transistors) directed by E VerweijĮngineering (applications) directed by Rinia In the 1950s Natlab was comprised of three sections each with a Director: This is where the history of Philips’ semiconductor developments begins. Later it branched out into consumer electrical and electronic products.įrom 1914 its research and development was carried out at the Eindhoven Natuurkundig Laboratorium usually abbreviated to Natlab.
The company quickly became a major European tube and radio receiver manufacturer.
Early on its products included incandescent bulbs which led it to begin producing vacuum tubes initially under contract in 1917 and then in its own name from 1919. Phiilips was founded in 1891 by Gerard Philips in Eindhoven, the Netherlands. History of Philips’ Semiconductors in the 1950s
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