{"id":814,"date":"2020-08-19T14:48:14","date_gmt":"2020-08-19T06:48:14","guid":{"rendered":"http:\/\/www.bestpcbs.com\/blog\/?p=814"},"modified":"2020-09-09T10:46:15","modified_gmt":"2020-09-09T02:46:15","slug":"how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/","title":{"rendered":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178"},"content":{"rendered":"<div class=\"yzp-no-index\"><\/div>\n<p>Everyone may&nbsp;know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Reduce the effect of temperature on PCB board stress<\/li><\/ol>\n\n\n\n<p>Due to the &#8220;temperature&#8221; is the main source of stress for board, so as long as the temperature of the reflow oven reduce the temperature or slow the speed of warming up and cooling down in the reflow oven, the board bending and warping issue can be reduced. But it may be occurring other issues, such as short circuit when soldering. See Best Tech make control for the temperature of the reflowing process.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/Curve-analysis-report.jpg\" alt=\"\" width=\"402\" height=\"284\"\/><\/figure>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/reflow-machine.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/reflow-machine-s.jpg\" alt=\"\"\/><\/a><figcaption>reflow machine<\/figcaption><\/figure><\/div>\n\n\n\n<p>&nbsp;2. Use high Tg plate<\/p>\n\n\n\n<p>&nbsp;Tg is the glass transition temperature. The lower of&nbsp;the Tg value, the faster of board starts to soften after finishing reflowing, and deformed of the board become more serious. if use of higher Tg 170 material can increase the ability to withstand stress deformation, but the price of TG170 material is higher. See the stock of high Tg material from Best Tech.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/PCB-high-TG-material.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/PCB-high-TG-material-s.jpg\" alt=\"\" width=\"400\" height=\"348\"\/><\/a><figcaption>Use high Tg plate<\/figcaption><\/figure><\/div>\n\n\n\n<p>3. Increase the board thickness<\/p>\n\n\n\n<p>If final application allowed, we recommend 1.6mm thickness to prevent the risk of board bending. Best&nbsp;Tech can provide <a href=\"https:\/\/www.bestpcbs.com\/products\/FR4-pcb.htm\">PCB<\/a> board thickness to 4.5~8.0mm.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/bmp18192-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/bmp18192-2-s.jpg\" alt=\"\"\/><\/a><figcaption>PCB board thickness<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Try to reduce the size of the board and the number of panels during design<\/li><\/ul>\n\n\n\n<p>&nbsp;Since most reflow oven use chains to driving the board forward, if larger size of the FR4 PCB, the own weight will be deformed in the reflow oven, so during design try to design the long side of the PCB as a board edge, it can reduce the deformed. And<\/p>\n\n\n\n<p>Same reason, if there are many PCBs in a big panel, PCB will be bigger and heavier, when get through the oven, the speed in the oven will be slowly and it will influence the deformed of the PCB. See following PCB board, we only panel 1 single piece into a panel to keep the size of<a href=\"https:\/\/www.bestpcbs.com\/products\/FR4-pcb.htm\"> FR4 PCB<\/a> panel not bigger.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-s.jpg\" alt=\"\"\/><\/a><figcaption>pcb<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-2-s.jpg\" alt=\"\"\/><\/a><figcaption>pcb<\/figcaption><\/figure><\/div>\n\n\n\n<p>5. Use the reflow carrier\/tray<\/p>\n\n\n\n<p>If above methods cannot get a good result for deforming, you maybe can use a reflow carrier\/tray to reduce the deformation. The reason reflow tray can fix the circuit board, after the temperature of the <a href=\"https:\/\/www.bestpcbs.com\/products\/FR4-pcb.htm\">printed circuit board<\/a> is lower than the Tg value, it can maintain the original size.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/PCB-in-tray.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/PCB-in-tray-s.jpg\" alt=\"\"\/><\/a><figcaption>pcb in tray<\/figcaption><\/figure><\/div>\n\n\n\n<p>6. Use Router instead of V-Cut<\/p>\n\n\n\n<p>Since V-Cut will destroy the structural strength of the panels, try to use Router <a href=\"https:\/\/www.bestpcbs.com\/products\/FR4-pcb.htm\">PCB board<\/a> or just reduce the depth of the V-Cut will helps the deform issue.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-1.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-1-s.jpg\" alt=\"\"\/><\/a><figcaption>pcb<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/pcb-2-s.jpg\" alt=\"\"\/><\/a><figcaption>pcb<\/figcaption><\/figure><\/div>\n\n\n\n<p>If you want to know more <a href=\"https:\/\/www.bestpcbs.com\/about\/index.htm\">about<\/a> how we control the bended and warped for PCB, you are welcome to <a href=\"https:\/\/www.bestpcbs.com\/contact\/index.htm\">contact us<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Everyone may&nbsp;know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the &#8220;temperature&#8221; is the main source of stress for board, so as long as [&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":[165,15,3,16],"tags":[47],"class_list":["post-814","post","type-post","status-publish","format-standard","hentry","category-fr4-pcb","category-our-news","category-pcb-news","category-pcb-technology","tag-fr4-pcb"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the &quot;temperature&quot; is the main source of stress for board, so as long as\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Love PCB\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"PCB &amp; MCPCB - EBest PCB - More Technical Details &amp; News on PCB, MCPCB &amp; Ceramic PCB from EBest PCB\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB &amp; MCPCB - EBest PCB\" \/>\n\t\t<meta property=\"og:description\" content=\"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the &quot;temperature&quot; is the main source of stress for board, so as long as\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/08\/logo.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/08\/logo.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2020-08-19T06:48:14+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2020-09-09T02:46:15+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Bestpcbs1\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@bestpcbs\" \/>\n\t\t<meta name=\"twitter:title\" content=\"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB &amp; MCPCB - EBest PCB\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the &quot;temperature&quot; is the main source of stress for board, so as long as\" \/>\n\t\t<meta name=\"twitter:creator\" content=\"@bestpcbs\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2016\/02\/logo.gif\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#blogposting\",\"name\":\"How to prevent the FR4 PCB bended and warped after reflowing\\u00ef\\u00bc\\u0178 - PCB & MCPCB - EBest PCB\",\"headline\":\"How to prevent the FR4 PCB bended and warped after reflowing\\u00ef\\u00bc\\u0178\",\"author\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/author\\\/seo\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"http:\\\/\\\/www.bestpcbs.com\\\/blogimages\\\/2020\\\/08\\\/19\\\/Curve-analysis-report.jpg\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#articleImage\"},\"datePublished\":\"2020-08-19T14:48:14+08:00\",\"dateModified\":\"2020-09-09T10:46:15+08:00\",\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#webpage\"},\"articleSection\":\"FR4 PCB, Our News, PCB News, PCB Technology, FR4 PCB\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/category\\\/pcb-news\\\/#listItem\",\"name\":\"PCB News\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/category\\\/pcb-news\\\/#listItem\",\"position\":2,\"name\":\"PCB News\",\"item\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/category\\\/pcb-news\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#listItem\",\"name\":\"How to prevent the FR4 PCB bended and warped after reflowing\\u00ef\\u00bc\\u0178\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#listItem\",\"position\":3,\"name\":\"How to prevent the FR4 PCB bended and warped after reflowing\\u00ef\\u00bc\\u0178\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/category\\\/pcb-news\\\/#listItem\",\"name\":\"PCB News\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/#organization\",\"name\":\"PCB & MCPCB - Best Technology\",\"description\":\"More Technical Details & News on PCB, MCPCB & Ceramic PCB from EBest PCB\",\"url\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/\",\"telephone\":\"+8675529091601\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/logo.png\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#organizationLogo\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#organizationLogo\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/Bestpcbs1\",\"https:\\\/\\\/twitter.com\\\/bestpcbs\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCJsTR02i6mtLFnBBNC_i4bQ\\\/featured\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/best-pcb-technology\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/author\\\/seo\\\/#author\",\"url\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/author\\\/seo\\\/\",\"name\":\"Love PCB\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a7888223b6638d2aaf515046d034707e?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Love PCB\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#webpage\",\"url\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/\",\"name\":\"How to prevent the FR4 PCB bended and warped after reflowing\\u00ef\\u00bc\\u0178 - PCB & MCPCB - EBest PCB\",\"description\":\"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the \\\"temperature\\\" is the main source of stress for board, so as long as\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/2020\\\/08\\\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/author\\\/seo\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/author\\\/seo\\\/#author\"},\"datePublished\":\"2020-08-19T14:48:14+08:00\",\"dateModified\":\"2020-09-09T10:46:15+08:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/\",\"name\":\"PCB & MCPCB - Best Technology\",\"description\":\"More Technical Details & News on PCB, MCPCB & Ceramic PCB from EBest PCB\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.bestpcbs.com\\\/blog\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB & MCPCB - EBest PCB","description":"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the \"temperature\" is the main source of stress for board, so as long as","canonical_url":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#blogposting","name":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB & MCPCB - EBest PCB","headline":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178","author":{"@id":"https:\/\/www.bestpcbs.com\/blog\/author\/seo\/#author"},"publisher":{"@id":"https:\/\/www.bestpcbs.com\/blog\/#organization"},"image":{"@type":"ImageObject","url":"http:\/\/www.bestpcbs.com\/blogimages\/2020\/08\/19\/Curve-analysis-report.jpg","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#articleImage"},"datePublished":"2020-08-19T14:48:14+08:00","dateModified":"2020-09-09T10:46:15+08:00","inLanguage":"en-US","mainEntityOfPage":{"@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#webpage"},"isPartOf":{"@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#webpage"},"articleSection":"FR4 PCB, Our News, PCB News, PCB Technology, FR4 PCB"},{"@type":"BreadcrumbList","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog#listItem","position":1,"name":"Home","item":"https:\/\/www.bestpcbs.com\/blog","nextItem":{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog\/category\/pcb-news\/#listItem","name":"PCB News"}},{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog\/category\/pcb-news\/#listItem","position":2,"name":"PCB News","item":"https:\/\/www.bestpcbs.com\/blog\/category\/pcb-news\/","nextItem":{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#listItem","name":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#listItem","position":3,"name":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178","previousItem":{"@type":"ListItem","@id":"https:\/\/www.bestpcbs.com\/blog\/category\/pcb-news\/#listItem","name":"PCB News"}}]},{"@type":"Organization","@id":"https:\/\/www.bestpcbs.com\/blog\/#organization","name":"PCB & MCPCB - Best Technology","description":"More Technical Details & News on PCB, MCPCB & Ceramic PCB from EBest PCB","url":"https:\/\/www.bestpcbs.com\/blog\/","telephone":"+8675529091601","logo":{"@type":"ImageObject","url":"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/08\/logo.png","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#organizationLogo"},"image":{"@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#organizationLogo"},"sameAs":["https:\/\/www.facebook.com\/Bestpcbs1","https:\/\/twitter.com\/bestpcbs","https:\/\/www.youtube.com\/channel\/UCJsTR02i6mtLFnBBNC_i4bQ\/featured","https:\/\/www.linkedin.com\/company\/best-pcb-technology"]},{"@type":"Person","@id":"https:\/\/www.bestpcbs.com\/blog\/author\/seo\/#author","url":"https:\/\/www.bestpcbs.com\/blog\/author\/seo\/","name":"Love PCB","image":{"@type":"ImageObject","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/a7888223b6638d2aaf515046d034707e?s=96&d=mm&r=g","width":96,"height":96,"caption":"Love PCB"}},{"@type":"WebPage","@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#webpage","url":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/","name":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB & MCPCB - EBest PCB","description":"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the \"temperature\" is the main source of stress for board, so as long as","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/www.bestpcbs.com\/blog\/#website"},"breadcrumb":{"@id":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/#breadcrumblist"},"author":{"@id":"https:\/\/www.bestpcbs.com\/blog\/author\/seo\/#author"},"creator":{"@id":"https:\/\/www.bestpcbs.com\/blog\/author\/seo\/#author"},"datePublished":"2020-08-19T14:48:14+08:00","dateModified":"2020-09-09T10:46:15+08:00"},{"@type":"WebSite","@id":"https:\/\/www.bestpcbs.com\/blog\/#website","url":"https:\/\/www.bestpcbs.com\/blog\/","name":"PCB & MCPCB - Best Technology","description":"More Technical Details & News on PCB, MCPCB & Ceramic PCB from EBest PCB","inLanguage":"en-US","publisher":{"@id":"https:\/\/www.bestpcbs.com\/blog\/#organization"}}]},"og:locale":"en_US","og:site_name":"PCB &amp; MCPCB - EBest PCB - More Technical Details &amp; News on PCB, MCPCB &amp; Ceramic PCB from EBest PCB","og:type":"article","og:title":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB &amp; MCPCB - EBest PCB","og:description":"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the &quot;temperature&quot; is the main source of stress for board, so as long as","og:url":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/","og:image":"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/08\/logo.png","og:image:secure_url":"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/08\/logo.png","article:published_time":"2020-08-19T06:48:14+00:00","article:modified_time":"2020-09-09T02:46:15+00:00","article:publisher":"https:\/\/www.facebook.com\/Bestpcbs1","twitter:card":"summary_large_image","twitter:site":"@bestpcbs","twitter:title":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178 - PCB &amp; MCPCB - EBest PCB","twitter:description":"Everyone may know that PCBs are easy to be bended or warped when get through the reflow process. Do you how to avoid this issue? here are some advices your reference. Reduce the effect of temperature on PCB board stress Due to the &quot;temperature&quot; is the main source of stress for board, so as long as","twitter:creator":"@bestpcbs","twitter:image":"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2016\/02\/logo.gif"},"aioseo_meta_data":{"post_id":"814","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"Article","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2022-08-18 10:56:58","updated":"2026-04-09 11:48:00","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.bestpcbs.com\/blog\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.bestpcbs.com\/blog\/category\/pcb-news\/\" title=\"PCB News\">PCB News<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tHow to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.bestpcbs.com\/blog"},{"label":"PCB News","link":"https:\/\/www.bestpcbs.com\/blog\/category\/pcb-news\/"},{"label":"How to prevent the FR4 PCB bended and warped after reflowing\u00ef\u00bc\u0178","link":"https:\/\/www.bestpcbs.com\/blog\/2020\/08\/how-to-prevent-the-fr4-pcb-bended-and-warped-after-reflowing%ef%bc%9f\/"}],"_links":{"self":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/814","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=814"}],"version-history":[{"count":4,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/814\/revisions"}],"predecessor-version":[{"id":829,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/814\/revisions\/829"}],"wp:attachment":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/media?parent=814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/categories?post=814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/tags?post=814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}