{"id":215,"date":"2016-08-12T11:00:52","date_gmt":"2016-08-12T03:00:52","guid":{"rendered":"http:\/\/www.bestpcbs.com\/blog\/?p=215"},"modified":"2016-08-12T11:00:52","modified_gmt":"2016-08-12T03:00:52","slug":"does-the-high-tg-fr4-material-for-lead-free-soldering-is-better-than-standardtg-fr4-material","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2016\/08\/does-the-high-tg-fr4-material-for-lead-free-soldering-is-better-than-standardtg-fr4-material\/","title":{"rendered":"Does the high TG FR4 material for lead-free soldering is better than standard\u00e2\u20ac\u009dTG FR4 material ?"},"content":{"rendered":"<div class=\"yzp-no-index\"><\/div><p>No, it is not always. There are many factors to be taken into account, e.g. how many layers, the thickness of the PCB and also a good understanding of the assembly process (number of soldering cycles, time above 260 degrees, etc.). Some research has shown that a material with a \u00e2\u20ac\u0153standard\u00e2\u20ac\u009d Tg value has even performed better than some materials with a higher Tg value. Note that even with \u00e2\u20ac\u0153leaded\u00e2\u20ac\u009d soldering the Tg value is exceeded.<\/p>\n<p>What is of most importance is how the material behaves at temperatures above the Tg value (post Tg) so knowing the temperature profiles the board will be subjected to will help you look evaluate the necessary performance characteristics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>No, it is not always. There are many factors to be taken into account, e.g. how many layers, the thickness of the PCB and also a good understanding of the assembly process (number of soldering cycles, time above 260 degrees, etc.). Some research has shown that a material with a \u00e2\u20ac\u0153standard\u00e2\u20ac\u009d Tg value has even [&hellip;]<\/p>\n","protected":false},"author":623,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[37],"tags":[],"class_list":["post-215","post","type-post","status-publish","format-standard","hentry","category-faq"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/users\/623"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/comments?post=215"}],"version-history":[{"count":1,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/215\/revisions"}],"predecessor-version":[{"id":216,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/215\/revisions\/216"}],"wp:attachment":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}