File:Die of the first 555 chip.jpg
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Die_of_the_first_555_chip.jpg (379 × 346 pixels, file size: 50 KB, MIME type: image/jpeg)
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Summary
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| Description |
English: Die shot of the first 555 timer IC manufactured in 1971. |
| Date | |
| Source | Carmenzind, Hans (2010). "タイマIC 555 誕生秘話". トランジスタ技術 (Transistor Technology) 47 (12): 74. CQ出版 (CQ Publishing Co., Ltd.. ISSN 0040-9413. |
| Author | CQ出版社 (CQ Publishing Co., Ltd.) |
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This is a photographic reproduction of a two-dimensional mechanical part. See Commons:Threshold of originality.
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This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship. |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:38, 27 December 2016 | | 379 × 346 (50 KB) | Darklanlan (talk | contribs) | User created page with UploadWizard |
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