{"id":4337,"date":"2012-05-23T21:45:29","date_gmt":"2012-05-24T02:45:29","guid":{"rendered":"http:\/\/bucktownbell.com\/?p=4337"},"modified":"2012-05-24T16:15:27","modified_gmt":"2012-05-24T21:15:27","slug":"return-of-the-vacuum-tube","status":"publish","type":"post","link":"http:\/\/bucktownbell.com\/?p=4337","title":{"rendered":"Return of the Vacuum Tube"},"content":{"rendered":"<blockquote><p>The new device is a cross between today&#8217;s transistors and the vacuum tubes of yesteryear. It&#8217;s small and easily manufactured, but also fast and radiation-proof. Meyyappan, who co-developed the &#8220;nano vacuum tube,&#8221; says it is created by etching a tiny cavity in phosphorous-doped silicon. The cavity is bordered by three electrodes: a source, a gate, and a drain. The source and drain are separated by just 150 nanometers, while the gate sits on top. Electrons are emitted from the source thanks to a voltage applied across it and the drain, while the gate controls the electron flow across the cavity. In their paper published online today in <em>Applied Physics Letters<\/em>, Meyyappan and colleagues estimate that <a href=\"http:\/\/apl.aip.org\/resource\/1\/applab\/v100\/i21\/p213505_s1?isAuthorized=no\">their nano vacuum tube operates at frequencies up to 0.46 terahertz<\/a>\u2014<strong>some 10 times faster than the best silicon transistors.<\/strong><\/p><\/blockquote>\n<p><a href=\"http:\/\/news.sciencemag.org\/sciencenow\/2012\/05\/return-of-the-vacuum-tube.html?ref=hp\">Return of the Vacuum Tube &#8211; ScienceNOW<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The new device is a cross between today&#8217;s transistors and the vacuum tubes of yesteryear. It&#8217;s small and easily manufactured, but also fast and radiation-proof. Meyyappan, who co-developed the &#8220;nano vacuum tube,&#8221; says it is created by etching a tiny &hellip; <a href=\"http:\/\/bucktownbell.com\/?p=4337\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[100,647],"class_list":["post-4337","post","type-post","status-publish","format-standard","hentry","category-technical","tag-interesting-research","tag-semiconductors"],"_links":{"self":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/4337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4337"}],"version-history":[{"count":3,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/4337\/revisions"}],"predecessor-version":[{"id":4350,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/4337\/revisions\/4350"}],"wp:attachment":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4337"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}