{"id":17979,"date":"2025-04-28T10:50:03","date_gmt":"2025-04-28T01:50:03","guid":{"rendered":"https:\/\/www.japanunix.com\/en\/?post_type=column&#038;p=17979"},"modified":"2026-01-28T13:10:10","modified_gmt":"2026-01-28T04:10:10","slug":"lets-try-soldering-high-heat-capacity-igbt-tip-laser","status":"publish","type":"column","link":"https:\/\/www.japanunix.com\/en\/column\/lets-try-soldering-high-heat-capacity-igbt-tip-laser\/","title":{"rendered":"Let&#8217;s Try Soldering! High Heat Capacity &#8211; IGBT by Tip and Laser"},"content":{"rendered":"<div class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<div class=\"heading-title-image\">\n<div class=\"_utility-wrapper\">\n<div class=\"_date\">April 28, 2025<\/div>\n<div class=\"_category\">YOUTUBE Article<\/div>\n<\/p><\/div>\n<div class=\"_image-wrapper\">\n<div class=\"_image\"><img decoding=\"async\" src=\"\/wp\/wp-content\/uploads\/2022\/11\/japanunix_youtube.jpg\" alt=\"\" \/>\n\t\t\t\t\t<\/div>\n<div class=\"_text\">\n<p class=\"_title\">YOUTUBE Article Vol.21!<br \/>Let&#8217;s try Soldering Series: IGBT<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"col-md-12\">\n<h3>Table of Contents<\/h3>\n<ul class=\"list-contents\">\n<li><a href=\"#01\">Introduction<\/a><\/li>\n<li><a href=\"#02\">Tip Soldering<\/a><\/li>\n<li><a href=\"#03\">Laser Soldering<\/a><\/li>\n<li><a href=\"#04\">Conclusion<\/a><\/li>\n<li><a href=\"#05\">Related Products &#038; Services<\/a><\/li>\n<li><a href=\"#06\">Watch the Video Here<\/a><\/li>\n<\/ul>\n<div class=\"panel-light\">\n<div class=\"_header\">Download Materials<\/div>\n<div class=\"_body\"><mark>\uff3cOver 1,000 installations worldwide\uff0f<\/mark>Introduction materials for Japan Unix&#8217;s products and services<\/p>\n<div class=\"row-lg-2\">\n<div class=\"col\"><a class=\"btn-primary btn-animation btn-block btn-icon-next\" href=\"https:\/\/www.japanunix.com\/en\/contact\/download_catalog\">Download Now<\/a><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<hr class=\"hr-color-dark\">\n<div id=\"00\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-5\">\n<p>\n\t\t\t\t<a class=\"btn-primary btn-icon-next\" href=\"https:\/\/www.japanunix.com\/en\/products\/automation\/\">Click here for Automatic Soldering Robots<\/a>\n\t\t\t<\/p>\n<p>\n\t\t\t\t<a class=\"btn-primary btn-icon-next\" href=\"https:\/\/www.japanunix.com\/en\/products\/laser\/\">Click here for Laser Soldering<\/a>\n\t\t\t<\/p>\n<\/p><\/div>\n<div class=\"col-md-7\">\n<div class=\"js-modal-video\" data-modal=\"#modal-media-target\" data-video-id=\"hLkvaXsUi08\">\n<div class=\"_thumb\"><img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/hLkvaXsUi08\/maxresdefault.jpg\" alt=\"\" \/><\/div>\n<\/p><\/div>\n<h5>Watch the video for this article here<\/h5>\n<\/p><\/div>\n<\/p><\/div>\n<div id=\"01\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<h2 class=\"heading-title\">What is Automatic Soldering of IGBT Used For?<\/h2>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"row\">\n<div class=\"col-md-7 order-md-2\">\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;Hello everyone. I\u2019m Nakano from Japan Unix. In today\u2019s episode of the \u201cLet&#8217;s try Soldering\u201d series, the theme is IGBT soldering. Our guest today is Mr. Yanaka from the technical team.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;Thank you for having me.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;IGBT power modules are widely used in many <span class=\"text-size-medium\"><strong><mark>automotive components such as EVs and hybrids<\/mark><\/strong><\/span>, which have become quite the topic lately.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;That\u2019s right. They are essential for devices that require high power, such as <span class=\"text-size-medium\"><strong><mark>steering and traction motors<\/mark><\/strong><\/span>.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;As environmental concerns gain attention, these are important components. <br \/>And once again, you\u2019ve conducted tests using both laser and soldering iron tip.<br \/>\n\t\t\t<\/span><\/p>\n<\/p><\/div>\n<div class=\"col-md-5 order-md-1\">\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_1.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_2.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_3.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_4.jpg\" \/><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"02\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<h2 class=\"heading-title\">Automatic Tip Soldering of IGBT<\/h2>\n<\/p><\/div>\n<div class=\"col-md-7 order-md-1\">\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;Yes, first we have an experiment video using the soldering tip. Please take a look.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;This is the actual soldered product. <br \/>It\u2019s just a sample board, but you can see the solder is nicely filled inside the through holes. <br \/>Please tell us any key points or characteristics of soldering IGBT boards.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;Sure. The main point is that <span class=\"text-size-medium\"><strong><mark>the thermal capacity is very large<\/mark><\/strong><\/span>.<br \/>In most cases, IGBT is used with a <span class=\"text-size-medium\"><strong><mark>multilayer PCB connected to large copper ground planes inside<\/mark><\/strong><\/span>, which makes it quite difficult to solder with a narrow soldering tip. <br \/>However, if the tip temperature is too high or it remains in contact too long, the flux deteriorates, causing <span class=\"text-size-medium\"><strong><mark>poor wetting or solder spikes<\/mark><\/strong><\/span>. Therefore, careful control of soldering conditions is essential.<br \/>\n\t\t\t<\/span><\/p>\n<\/p><\/div>\n<div class=\"col-md-5 order-md-2\">\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_5.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_6.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_7.jpg\" \/><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"03\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<h2 class=\"heading-title\">Laser Soldering of Power Terminals<\/h2>\n<\/p><\/div>\n<div class=\"col-md-7 order-md-2\">\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;Now, let\u2019s take a look at the laser soldering experiment. <br \/>As you can see, the laser soldering was also done very nicely. <br \/>Could you tell us about the characteristics and precautions for laser soldering?<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;As I mentioned earlier, ground patterns are connected, but depending on the solder point, the circuit structure differs, which changes the thermal capacity.<br \/>In other words, <span class=\"text-size-medium\"><strong><mark>the required power and time settings can vary<\/mark><\/strong><\/span> at each point.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;If there are many soldering points and each one needs a different set of conditions, that must be challenging both for you during testing and for customers during operation.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;That\u2019s why, whether using a soldering iron tip or a laser, we always <span class=\"text-size-medium\"><strong><mark>consult with customers from the PCB design and prototyping stages<\/mark><\/strong><\/span> to offer proposals that facilitate easier mass production management.<br \/>\n\t\t\t<\/span><\/p>\n<\/p><\/div>\n<div class=\"col-md-5 order-md-1\">\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_8.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_9.jpg\" \/><\/div>\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_11.jpg\" \/><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"04\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<h2 class=\"heading-title\">Conclusion<\/h2>\n<\/p><\/div>\n<div class=\"col-md-7 order-md-1\">\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;In soldering, <span class=\"text-size-medium\"><strong><mark>adjusting the soldering conditions<\/mark><\/strong><\/span> is a very important factor.<br \/>\nWe are fully committed to supporting that aspect, so please feel at ease.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;Thank you very much for your explanation today, Mr. Yanaka.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-light\">Ya<\/span>&emsp;Thank you very much.<br \/>\n\t\t\t<\/span><\/p>\n<p><span class=\"text-size-small\"><span class=\"label-primary\">Naka<\/span>&emsp;See you again in the next video!<br \/>\n\t\t\t<\/span><\/p>\n<\/p><\/div>\n<div class=\"col-md-5 order-md-2\">\n<div class=\"_image align-center mb-4\"><img decoding=\"async\" src=\"https:\/\/www.japanunix.com\/en\/wp\/wp-content\/uploads\/2025\/04\/IGBTEN_12.jpg\" \/><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<hr class=\"hr-color-dark\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<div class=\"panel-light\">\n<div class=\"_header\">Download Materials<\/div>\n<div class=\"_body\"><mark>\uff3cOver 1,000 installations worldwide\uff0f<\/mark>Introduction materials for Japan Unix\u2019s products and services<\/p>\n<div class=\"row-lg-2\">\n<div class=\"col\"><a class=\"btn-primary btn-animation btn-block btn-icon-next\" href=\"https:\/\/www.japanunix.com\/en\/contact\/download_catalog\">Download Now<\/a><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"05\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<h2 class=\"heading-title\">Related Products &#038; Services<\/h2>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<p>\n\t\t\t\t\t<a class=\"btn-primary btn-icon-next\" href=\"https:\/\/www.japanunix.com\/en\/products\/automation\/\">Click here for Automatic Soldering Robots<\/a>\n\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t<a class=\"btn-primary btn-icon-next\" href=\"https:\/\/www.japanunix.com\/en\/products\/laser\/\">Click here for Laser Soldering<\/a>\n\t\t\t\t<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"06\" class=\"c-box\">\n<div class=\"row\">\n<div class=\"col-md-12\">\n<h2 class=\"heading-title\">Watch the Video for This Article Here<\/h2>\n<\/p><\/div>\n<div class=\"col-md-6\">\n<div class=\"js-modal-video\" data-modal=\"#modal-media-target\" data-video-id=\"hLkvaXsUi08\">\n<div class=\"_thumb\"><img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/hLkvaXsUi08\/maxresdefault.jpg\" alt=\"\" \/><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n","protected":false},"featured_media":0,"template":"","column_category":[296,308,307],"column_tag":[],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.japanunix.com\/en\/wp-json\/wp\/v2\/column\/17979"}],"collection":[{"href":"https:\/\/www.japanunix.com\/en\/wp-json\/wp\/v2\/column"}],"about":[{"href":"https:\/\/www.japanunix.com\/en\/wp-json\/wp\/v2\/types\/column"}],"wp:attachment":[{"href":"https:\/\/www.japanunix.com\/en\/wp-json\/wp\/v2\/media?parent=17979"}],"wp:term":[{"taxonomy":"column_category","embeddable":true,"href":"https:\/\/www.japanunix.com\/en\/wp-json\/wp\/v2\/column_category?post=17979"},{"taxonomy":"column_tag","embeddable":true,"href":"https:\/\/www.japanunix.com\/en\/wp-json\/wp\/v2\/column_tag?post=17979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}