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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">可响应特定无线电波的微形自毁电路 </h1> <p class="xg1"> 时间：2018-1-26 10:43<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(881)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=6252&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>对于一款包含了机密信息的电子设备来说，为了不让其落入错误的人的手中，自毁电路的存在就很有必要了。虽然在谍战影视作品中有所耳闻，但其体积似乎很难做到更加微小，且不便于远程销毁。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 对于一款包含了机密信息的<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>设备来说，为了不让其落入错误的人的手中，自毁<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电路</a>的存在就很有必要了。虽然在谍战影视作品中有所耳闻，但其体积似乎很难做到更加微小，且不便于远程销毁。好消息是，康奈尔大学的科学家们，刚刚开发出了一款超薄、且可响应特定无线电波的微型自毁电路。由 Ved Gund 带领的这支研究团队，打造了一片带有聚碳酸酯外壳的一种二氧化硅芯片。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201801/26/104301ec9yyy9adn9nnynb.jpg" target="_blank"><img src="data/attachment/portal/201801/26/104301ec9yyy9adn9nnynb.jpg"></a></p></div><div><br></div><div> 在蒸发<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a>后，其仅留下了 125 微米厚的聚碳酸酯外壳。在壳体内部，填充了满是孔隙的铷和钠的氟化合物（rubidium and sodium biflouride）。</div><div><br></div><div> 当壳体接触到特定频率的无线电波时，介于两种物质间的微型石墨烯氮氧化物阀门就会打开，使其混合并发生化学反应。Ved Gund 表示：</div><div><br></div><div> 铷被包裹起来氧化，释放的热量使聚碳酸酯外壳蒸发，并且分解掉氢氟化钠。后者以可控形式释放氢氟酸，从而腐蚀掉电子器件。</div><div><br></div><div> 与此前提出的“瞬态电子”（transient electronics）等概念不同，这项新技术并不需要水来溶解它们、也不需要有源加热元件来达到反应所需的温度。</div><div><br></div><div> 结合其它数据保护措施，这项技术有望运用到那些“一旦不再需要，就可以被远程蒸发掉”的设备上，比如环境<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">传感</a>器。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201801/26/104318jacysyigj3csvgcz.jpg" target="_blank"><img src="data/attachment/portal/201801/26/104318jacysyigj3csvgcz.jpg"></a></p></div></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div 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