{"id":339,"date":"2016-05-18T08:14:47","date_gmt":"2016-05-18T08:14:47","guid":{"rendered":"http:\/\/www.rigiflex.com\/blog\/?p=339"},"modified":"2025-06-12T09:53:28","modified_gmt":"2025-06-12T09:53:28","slug":"the-importance-of-humidity-control-in-pcb-assemblies","status":"publish","type":"post","link":"https:\/\/www.rigiflex.com\/blog\/the-importance-of-humidity-control-in-pcb-assemblies\/","title":{"rendered":"The Importance of Humidity Control in PCB Assemblies"},"content":{"rendered":"

When partnering with printed circuit board (PCB) manufacturers you tend to focus on the latest equipment for PCB assembly showcased by them. However, as a buyer, one should also check the other less exciting aspects of their manufacturing facility. It is important to educate yourself to see if the unnoticeable areas are keeping pace with the more visible features.<\/p>\n

One such aspect to look for in a PCB manufacturer\u2019s facility is humidity control. This is one area where the manufacturer has to take care of two different goals. On one hand, high humidity is required to mitigate the risk of electrostatic discharge (ESD) damage to PCBs. On the other hand, low humidity aids in maximizing the durability of moisture sensitive electronic devices or MSDs. These factors are becoming more important as the electronics industry is moving towards smaller SMT components that are sensitive to both ESD and moisture.<\/p>\n

Dry heat can be hazardous to PCB assembly. Therefore, it\u2019s imperative that the facility has a steady supply of fresh air along with comprehensive exhaust systems. And, this fresh air should be constantly humidified to maintain relative humidity above 30% as recommended by the IPC. This can be achieved by installing a humidity control system at the facility. Moreover, any good, safe, and static free PCB assembly facility should use ESD wrist and heel straps, as well as grounded floor mats, and carts to get rid of electrostatic discharge.<\/p>\n

\"Humidity<\/a><\/p>\n

Things to Look For In a PCB Assembly and Manufacturing Facility<\/strong><\/p>\n

You must look for the following aspects in a PCB assembly and manufacturing facility:<\/p>\n

\u2022 First, see if they have a humidity control system. Warm, humid climates might not require a separate humidity system. If needed, an air conditioning system can take care of the relative humidity. But, in areas having dry summers or cold winters, it\u2019s necessary to have a dedicated humidity control system.<\/p>\n

\u2022 If the system is displaying humidity below 30%, then either the system is set at too low temperature or it\u2019s too small to meet the facility\u2019s humidity requirement. Modern humidity control equipment comprise small, high-pressure misting systems that are small, quiet and energy-efficient,<\/p>\n

\u2022 If the relative humidity is maintained above 30%, you need to make sure that the MSDs are kept dry. Especially, smaller components and ball grid arrays (BGAs) require special handling. MSDs must be kept in dry storage when not in use, as they can be out of dry storage for limited hours before soldering.<\/p>\n

\u2022 Traditionally, MSDs were sealed in moisture barrier bags along with a moisture indicator card and a desiccant. Nowadays, dry cabinets are also becoming common, especially in “high mix” operations. The dry cabinets store MSD tubes and reels at 0.1% humidity, and provide more convenient access to frequently-used components.<\/p>\n

If your PCB assembly partner takes care of the above mentioned factors you will definitely receive PCBs that are high on performance and quality as well as hazard free.\u00a0For more information about Humidity Control in PCB Assemblies, please visit\u00a0http:\/\/www.rigiflex.com\/<\/a> or contact the company at (714) 688-1500.<\/p>\n

\"PCB <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

When partnering with printed circuit board (PCB) manufacturers you tend to focus on the latest equipment for PCB assembly showcased by them. However, as a buyer, one should also check the other less exciting aspects of their manufacturing facility. It is important to educate yourself to see if the unnoticeable areas are keeping pace with<\/p>\n

Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[28,55],"class_list":["post-339","post","type-post","status-publish","format-standard","hentry","category-industrial","tag-flexible-pcb-assembly","tag-pcb-assembly"],"yoast_head":"\nThe Importance of Humidity Control in PCB Assemblies - Rigiflex Technology Inc. Blog<\/title>\n<meta name=\"description\" content=\"Learn why humidity control is critical in PCB assembly. Prevent ESD, protect MSDs, and ensure high-quality PCBs by choosing manufacturers with proper systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rigiflex.com\/blog\/the-importance-of-humidity-control-in-pcb-assemblies\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Importance of Humidity Control in PCB Assemblies - Rigiflex Technology Inc. Blog\" \/>\n<meta property=\"og:description\" content=\"Learn why humidity control is critical in PCB assembly. Prevent ESD, protect MSDs, and ensure high-quality PCBs by choosing manufacturers with proper systems.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rigiflex.com\/blog\/the-importance-of-humidity-control-in-pcb-assemblies\/\" \/>\n<meta property=\"og:site_name\" content=\"Rigiflex Technology Inc. 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