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Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
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| Number | Title | Issue Date |
| 8093145 | Methods for operating and fabricating a semiconductor device having a buried guard ring structure Semiconductor devices can be fabricated using conventional designs and process but including specialized structures to reduce or eliminate detrimental effects caused by various forms of radiation. Such semiconductor devices can include the one or more parasitic isol... | 01/10/2012 |
| 7804138 | Buried guard ring and radiation hardened isolation structures and fabrication methods Semiconductor devices can be fabricated using conventional designs and process but including specialized structures to reduce or eliminate detrimental effects caused by various forms of radiation. Such semiconductor devices can include the one or more parasitic isol... | 09/28/2010 |
| 7629654 | Buried guard ring structures and fabrication methods Semiconductor devices can be fabricated using conventional designs and process but including specialized structures to reduce or eliminate detrimental effects caused by various forms of radiation. Such semiconductor devices can include the one or more parasitic isol... | 12/08/2009 |
| 7304354 | Buried guard ring and radiation hardened isolation structures and fabrication methods Semiconductor devices can be fabricated using conventional designs and process but including specialized structures to reduce or eliminate detrimental effects caused by various forms of radiation. Such semiconductor devices can include the one or more parasitic isol... | 12/04/2007 |