{"id":9347,"date":"2026-03-30T16:45:28","date_gmt":"2026-03-30T07:45:28","guid":{"rendered":"https:\/\/www.dry-fog.com\/en\/?post_type=cases&#038;p=9347"},"modified":"2026-04-10T13:29:20","modified_gmt":"2026-04-10T04:29:20","slug":"hum-elec-002","status":"publish","type":"cases","link":"https:\/\/www.dry-fog.com\/en\/projects-technology\/cases\/hum-elec-002\/","title":{"rendered":"Stable Humidity Control Improves Solder Paste Printing Quality and Prevents ESD Damage"},"content":{"rendered":"<section>\n<!-- \u30b7\u30e7\u30fc\u30c8\u52d5\u753b\u30ea\u30f3\u30af --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<p style=\"font-size: 1.2rem;line-height:1.6rem\"><a href=\"https:\/\/www.youtube.com\/shorts\/YhVUCzpqx3E\" style=\"color: #E60023\" target=\"_blank\" rel=\"noopener\">\u25b6 Watch this case in a short video<\/a>\n<\/p>\n<\/div>\n<p><!-- Key Reasons for Implementation \u2605\u7b87\u6761\u66f8\u304d --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Key Reasons for Implementation<\/h3>\n<\/div>\n<ul style=\"list-style-type: disc;margin-left:2.8rem;font-size: 1rem;line-height:1.6rem\">\n<div style=\"margin-bottom:0.8rem\">\n<li>Plant-wide humidity control was essential for maintaining stable SMT quality.<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem\">\n<li>The system can maintain the target humidity of 45% RH consistently with virtually maintenance-free operation.<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem\">\n<li>Compared with the existing system, it enabled more efficient humidity control while significantly reducing electricity costs.<\/li>\n<\/div>\n<\/ul>\n<\/div>\n<p><!-- AE\u7528 \u4eba\u7269\u4ed8\u304d\u3010Download Case Studies\u30dc\u30bf\u30f3\u3011\u3068\u3010Contact Us\u30dc\u30bf\u30f3\u3011\u3053\u3053\u304b\u3089 --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto;margin-top:3rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<div style=\"max-width: 780px;margin-left: auto;margin-right: auto;margin-top: 4rem\">\n<div style=\"float: left\">\n\t\t<img decoding=\"async\" loading=\"lazy\" class=\"alignleft size-medium wp-image-5969\" src=\"https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/11\/call-1-s.jpg\" alt=\"\" width=\"308\" height=\"314\" \/>\n\t<\/div>\n<div class=\"page-bottom_contacts\" style=\"float: right\">\n<div style=\"margin-left: auto;margin-right: auto\">\n<div style=\"line-height: 1.5;margin-bottom: 0.5rem;font-size: 1rem;background: url('https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg') no-repeat 0 0;background-size: auto 20px;padding-left: 30px\">\n<ul>\n<li>Not sure which product is right for you?<\/li>\n<\/ul><\/div>\n<div style=\"line-height: 1.5;margin-bottom: 0.5rem;font-size: 1rem;background: url('https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg') no-repeat 0 0;background-size: auto 20px;padding-left: 30px\">\n<ul>\n<li>Curious about the total cost?<\/li>\n<\/ul><\/div>\n<div style=\"line-height: 1.5;margin-bottom: 0.5rem;font-size: 1rem;background: url('https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg') no-repeat 0 0;background-size: auto 20px;padding-left: 30px\">\n<ul>\n<li>Wondering where to start?<\/li>\n<\/ul><\/div>\n<div style=\"line-height: 2;margin-bottom: 1.5rem;font-size: 0.8rem;font-weight: bold;padding-left: 30px\">\n<ul>\n<li>We\u2019re here to help \u2013 reach out with any questions.<\/li>\n<\/ul><\/div>\n<div style=\"text-align: center\"><a class=\"content-ttl__sub\" style=\"margin-bottom: 1rem;justify-content: center;align-items: center;padding-top: 0.5rem;padding-bottom: 0.5rem;color: #fff;font-weight: 500;font-size: 1rem;background: #0C9B6F;border-radius: 30px\" href=\"https:\/\/www.dry-fog.com\/en\/cat_report\/humidification-and-humidification-systems\/\">Download Case Studies<\/a><\/div>\n<div style=\"text-align: center\"><a class=\"content-ttl__sub\" style=\"justify-content: center;align-items: center;padding-top: 0.5rem;padding-bottom: 0.5rem;color: #fff;font-weight: 500;font-size: 1rem;background: #0C9B6F;border-radius: 30px\" href=\"https:\/\/www.dry-fog.com\/en\/contact\/\" target=\"_blank\" rel=\"noopener\">Contact Us<\/a><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"clear: both\"><\/div>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto;margin-top:3rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<p><!-- \u4eba\u7269\u4ed8\u304d\u3010Download Case Studies\u30dc\u30bf\u30f3\u3011\u3068\u3010Contact Us\u30dc\u30bf\u30f3\u3011\u3053\u3053\u307e\u3067 --><\/p>\n<p><!-- Challenges Faced by the Customer\u3000\u2605p\uff5e\/p\u3067\u6bb5\u843d\u533a\u5207\u308a --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Challenges Faced by the Customer<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">At an electronics manufacturing services (EMS) plant, humidity control across the production floor had long been a challenge.<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">Although standard anti-static measures such as grounding straps and conductive flooring were already in place, when relative humidity dropped to 20\u201330% RH, momentary electrostatic buildup\u2014as indicated by higher surface potential\u2014became more likely.<br \/>\nThis raised concerns about the <span style=\"font-weight:bold\">risk of electrostatic discharge (ESD) damage<\/span> to electronic components during assembly.<\/p>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002--><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image1.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">In the surface-mount technology (SMT) process, <span style=\"font-weight:bold\">solder paste printing<\/span> is one of the most critical steps. Maintaining a stable solder paste temperature and constant humidity inside the printer is essential for improving SMT quality. <\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">While temperature could be managed through air-conditioning adjustments, humidity control remained extremely difficult and posed a major challenge to stabilizing production quality.<\/p>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002-->\u3000<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image2.jpeg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The plant had been using large air-conditioning units with built-in humidification, but the system was highly inefficient. It consumed substantial amounts of electricity and water while failing to raise humidity anywhere near the target of 45% RH.<\/p>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:5rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<p><!-- Solutions Proposed by IKEUCHI--><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Solutions Proposed by IKEUCHI<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">To address these challenges, IKEUCHI proposed its <a href=\"https:\/\/www.dry-fog.com\/en\/products\/sol-hum-airaki\/\" style=\"color: #00a273\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight:bold\">AirAKI<\/span><\/a> industrial humidification system.<br \/>\nAirAKI generates non-wetting ultrafine \u201c<a href=\"https:\/\/www.dry-fog.com\/en\/projects-technology\/dryfog\/\" style=\"color: #00a273\" target=\"_blank\" rel=\"noopener\">Dry Fog<\/a>,\u201d with a mean droplet diameter of 10 \u03bcm or less, enabling <span style=\"font-weight:bold\">precise humidity control without wetting products or equipment<\/span>.<\/p>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002--><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image3.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The system was designed and installed based on the plant\u2019s overall layout and equipment arrangement, taking into account factors such as humidity sensor locations, optimal humidification nozzle placement, spray direction, and the presence of obstructions.<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">A new control system featuring stepwise spray-pressure control was adopted at this plant. It automatically adjusts spray pressure according to humidity levels, allowing stable humidity to be maintained using <span style=\"font-weight:bold\">only the minimum required amount of water and compressed air<\/span>.<\/p>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002--><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image4.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><br \/>\nExample of stepwise spray-pressure control. Left: \u201cStep 1\u201d humidity set at 30% RH; right: \u201cStep 2\u201d humidity set at 45% RH. Spray flow rate is adjusted according to humidity level to help prevent over-humidification and improve energy efficiency.<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The use of purified water also prevents adverse effects on equipment, such as calcium scale buildup.<\/p>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:5rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<p><!-- Benefits Achieved\u3000\u2605\u672c\u6587\u6bb5\u843d\u3068\u7b87\u6761\u66f8\u304d\u3000--><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Benefits Achieved<\/h3>\n<\/div>\n<p style=\"margin-left:1.2rem;font-size: 1rem;margin-bottom:0.6rem\">After AirAKI was installed, the plant was able to maintain humidity consistently at around the target level of 45% RH, resulting in a range of benefits.<\/p>\n<ul style=\"list-style-type: disc;margin-left:2.8rem;font-size: 1rem;line-height:1.6rem\">\n<div style=\"margin-bottom:0.6rem\">\n<li><span style=\"font-weight:bold\">Reduced in-process defects by suppressing static electricity<\/span><br \/>\n  Precise humidity control helped suppress static buildup, reducing defects caused by ESD damage to mounted electronic components.<\/li>\n<\/div>\n<div style=\"margin-bottom:0.6rem\">\n<li><span style=\"font-weight:bold\">Improved solder paste printing quality and increased customer trust<\/span><br \/>\nPlant-wide humidity control improved solder paste printing quality across all production lines, helping stabilize SMT quality and build stronger customer trust.<\/li>\n<\/div>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002--><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image5.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<div style=\"margin-bottom:0.6rem\">\n<li><span style=\"font-weight:bold\">Lower operating costs through improved energy efficiency<\/span><br \/>\nThe previous large air-conditioning units with built-in humidification were replaced with new air-conditioning equipment, yet <span style=\"font-weight:bold\">overall electricity costs dropped significantly<\/span> thanks to more efficient humidification.<\/li>\n<\/div>\n<div style=\"margin-bottom:0.6rem\">\n<li><span style=\"font-weight:bold\">Reduced maintenance burden<\/span><br \/>\nNozzle replacement for the humidification system is rarely required, allowing the system to operate at a virtually maintenance-free level.<\/li>\n<\/div>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002--><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image6.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/>\n<\/ul>\n<\/p>\n<p style=\"margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">In addition, proper humidity control appears to have helped reduce employee absences due to influenza and other viral illnesses, providing the added benefit of lower downtime losses.<\/p>\n<p style=\"margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The customer plans to continue considering Dry Fog humidification systems whenever future factory or process expansions require stable humidity control.<\/p>\n<p><!-- \u753b\u50cf\u3000\u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002--><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/hum-elec-002-image7.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/>\n<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">Further Reading: <a href=\"https:\/\/www.dry-fog.com\/en\/projects-technology\/technical-report\/hum-smt-002\" style=\"color: #00a273\" target=\"_blank\" rel=\"noopener\">7 Benefits of Dry Fog Humidification in SMT Processes<\/a>\n<\/p>\n<\/div>\n<\/section>\n","protected":false},"featured_media":0,"template":"","cat_cases":[88],"tag_cases":[394,412,536,407,356,350,355],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cases\/9347"}],"collection":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cases"}],"about":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/types\/cases"}],"wp:attachment":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/media?parent=9347"}],"wp:term":[{"taxonomy":"cat_cases","embeddable":true,"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cat_cases?post=9347"},{"taxonomy":"tag_cases","embeddable":true,"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/tag_cases?post=9347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}