{"id":72,"date":"2010-08-20T00:37:00","date_gmt":"2010-08-19T16:37:00","guid":{"rendered":"http:\/\/senslite.com.tw\/Home\/?p=72"},"modified":"2011-09-20T13:38:38","modified_gmt":"2011-09-20T05:38:38","slug":"why-use-hb-led-chip-on-silicon-substrate","status":"publish","type":"post","link":"https:\/\/senslite.com.tw\/Home\/index.php\/2010\/08\/20\/why-use-hb-led-chip-on-silicon-substrate\/","title":{"rendered":"Why use HB LED chip on silicon substrate?"},"content":{"rendered":"

Why use HB LED chip on silicon substrate?<\/p>\n

Comparison on Silicon based Material and ceramic<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\nSilicon-based<\/strong><\/td>\nCeramicAIN<\/td>\nUnitAl2<\/sub>O3<\/sub><\/td>\n<\/tr>\n
Cavity (\u03bcm)<\/td>\nUp to 300\u03bcm<\/td>\nN\/A<\/td>\nN\/A<\/td>\n<\/tr>\n
Thickness (\u03bcm)<\/td>\n500<\/td>\n380<\/td>\n<\/td>\n<\/tr>\n
TSV Structure<\/td>\nEtch<\/td>\nLaser Drill<\/td>\nLaser Drill<\/td>\n<\/tr>\n
Metallization Scheme<\/td>\nTiW, Cu, Ni, Au<\/td>\nTiW, Cu, Ni, Au<\/td>\nTiW, Cu, Ni, Au<\/td>\n<\/tr>\n
Thermal Conductivity<\/td>\n140<\/strong><\/td>\n170<\/td>\n20<\/td>\n<\/tr>\n
Isolation Scheme<\/td>\nSiO2<\/sub><\/td>\nCeramic<\/td>\nCermic<\/td>\n<\/tr>\n
Thermal Resistance<\/td>\n~4<\/td>\nN\/A<\/td>\n10~15<\/td>\n<\/tr>\n
Cost of Material<\/td>\nLow<\/strong><\/td>\nHigh<\/td>\nHigh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u203b Achieve Rth<\/sup> ~4C\/W by using Silicon Substrate<\/p>\n

Comparison of LED package materials between silicon, AlN and Ceramic substrate.\u00a0 Silicon has advantage over AlN or ceramic with lower cost, high thermal expansion and high thermal conductivity.<\/p>\n","protected":false},"excerpt":{"rendered":"

Why use HB LED chip on silicon substrate? Comparison on Silicon based Material and ceramic Silicon-based CeramicAIN UnitAl2O3 Cavity (\u03bcm) Up to 300\u03bcm N\/A N\/A Thickness (\u03bcm) 500 380 TSV Structure Etch Laser Drill Laser Drill Metallization Scheme TiW, Cu, Ni, Au TiW, Cu, Ni, Au TiW, Cu, Ni, Au Thermal Conductivity 140 170 20 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-72","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/posts\/72","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/comments?post=72"}],"version-history":[{"count":2,"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/posts\/72\/revisions"}],"predecessor-version":[{"id":727,"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/posts\/72\/revisions\/727"}],"wp:attachment":[{"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/media?parent=72"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/categories?post=72"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/senslite.com.tw\/Home\/index.php\/wp-json\/wp\/v2\/tags?post=72"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}