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<p>固态LED照明的形势越来越光明，其应用领域在全球范围内不断扩大，包括室内外照明、汽车内部、电视与监视器、手机与其它消费电子产品的背光，甚至汽车大灯。 据市场调研公司Strategies Unlimited的LED市场研究总监 ...</p> </div> </div> </td> </tr> </table> </div> </div> <div class="bm vw pl" id="comment"> <div class="bm_h cl"> <h2>回复</h2> </div> <div class="bm_c"> <div id="postlistreply" class="xld xlda mbm"><div id="post_new" class="viewthread_table" style="display: none"></div></div><div id="post_829479" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-54876.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-54876.html" target="_blank" class="xi2">update</a><em id="author_829479"> 发表于</em> <span class="xg1 xw0">2011-6-28 16:59:48</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_829479"> 原文来源于：《国际电子商情》</td></tr></table> </div> <div id="comment_829479" class="cm"> </div> <div id="post_rate_div_829479"></div> </div> </dd> </dl> </div> <div id="post_829478" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-54876.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-54876.html" target="_blank" class="xi2">update</a><em id="author_829478"> 发表于</em> <span class="xg1 xw0">2011-6-28 16:59:19</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_829478"> 制造良率是关键<br /> <br /> LED在固态照明领域得到越来越广泛的采用，在大型晶圆上面制造LED并取得较高的良率，是降低其成本的关键。目前的多数LED是在基于GaN的2英寸和4英寸蓝宝石晶片上面生产出来的，存在良率不一致的问题，因此需要对颜色亮度、前向电压和其它产变量进行检测并根据结果分档。<br /> <br /> 加上装配与封装步骤，LED成本就会升得更高。目前的普遍良率是30%甚至更低。实际上，专家预计2020年以前都达不到40%或者更高。<br /> <br /> LED制造商计划未来几年向6英寸晶圆过渡，随后是8英寸晶圆，采用良率较高的外延MOCVD工艺。通过严格控制温度、回流和材料成分，可以做出那么大的晶圆。LG电子去年开始在6英寸晶圆上面生产LED。Philips Lumileds和Lextar也接近做到这点。有些公司将于明年生产8英寸晶圆样品。<br /> <br /> “如果LED产业将来继续增长，动力一定是来自普通照明领域，”欧洲光电产业联盟(EPIC)秘书长Tom Pearsall表示，“而且这有赖于所有方面持续取得重大进展，涉及从基础研究和材料一直到产品的设计与制造效率。”EPIC是一个非营利组织，致力于在欧洲推广和发展LED产业。</td></tr></table> </div> <div id="comment_829478" class="cm"> </div> <div id="post_rate_div_829478"></div> </div> </dd> </dl> </div> </div> </div> </div> <script type="text/javascript"> new lazyload(); </script> <div class="wp mtn"> <!--[diy=diy3]--><div id="diy3" class="area"></div><!--[/diy]--> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a 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