{"id":1522,"date":"2025-07-12T08:51:33","date_gmt":"2025-07-12T08:51:33","guid":{"rendered":"https:\/\/fabpcb.com\/?post_type=product&p=1522"},"modified":"2025-07-12T08:53:26","modified_gmt":"2025-07-12T08:53:26","slug":"medical-pcb-board-sphygmomanometer-pcba-assembly-supplier","status":"publish","type":"product","link":"https:\/\/fabpcb.com\/de\/produkt\/medical-pcb-board-sphygmomanometer-pcba-assembly-supplier\/","title":{"rendered":"Medical PCB Board Sphygmomanometer PCBA Assembly Supplier"},"content":{"rendered":"

Cleanliness of Electronic PCB Components Improves Reliability of Medical Devices<\/p>\n

Overcoming the possibility of failure<\/p>\n

Component manufacturers continue to develop new and smaller packages for components that are a fraction of a millimeter and have less than a mil of board-to-component clearance. Pick-and-place machines have new attachments to hold these nearly invisible parts. The components are placed very close together. How do you effectively clean something so small?<\/p>\n

Lead-free solder is a relatively new legislative fact that requires new solders, new fluxes, higher temperatures and new solder processing equipment. Many new methods, alloys, chemicals and soldering processes have been developed to address these issues. Tin whisker problems have also increased dramatically. However, the delayed effects usually don’t show up until a year or two after the product has been shipped and put into service. The speed of product development masks some of these time-delay problems, as products are often discarded for newer models. Products like cell phones don’t usually have problems because fewer people use phones that are more than 2-3 years old. When feature-rich upgraded models are offered at subsidized prices, few people will spend money on repairs. With medical devices, however, the likelihood of failure is very high, and the effects of failure can be devastating.<\/p>\n

Design decisions affect other process steps<\/p>\n

The place where all of this comes together and the supporting elements must function properly is the manufacturing floor, but component manufacturers, board designers, and equipment manufacturers often operate independently of each other, and this communication gap exacerbates the problem. Studies have shown that many failures are due to the printed circuit board (PCB) manufacturing process not being clean enough of contaminants. Advanced CAD design systems for PCB design can cause design problems.<\/p>\n

Sometimes designers utilize features such as ultra-close copper lamination or copper filling to ground the entire board a few mils away from the power bus. The chances of a short with catastrophic consequences increase several fold. Many designers have little exposure to the production issues of PCB fabrication or board assembly. It is important for board designers to really understand how flux flows into the microvias next to the connector pads during manual soldering of connectors. Many of the decisions made in implementing the design affect other process steps.<\/p>\n

Standards need to be raised for high reliability<\/p>\n

IPC, a global trade association serving the printed circuit board and electronic assembly industry, its customers and suppliers, has working groups that address all topics related to determining the cleanliness level of unassembled (bare) printed circuit boards and have developed basic standards in order to be clean. the IPC-TM-650 standard sets a standard of 10-2 \u00b5g\/in2 for military applications (65-2 \u00b5g\/in2 for general purpose applications), with sodium chloride (65-2 \u00b5g\/in2) and sodium nitrate (65-2 \u00b5g\/in2). The IPC-TM-650 standard sets an acceptable range of 10-2 \u00b5g\/in2 for military applications (65-2 \u00b5g\/in2 for general applications) for sodium chloride (NaCl). Is this standard sufficient to prevent failures, and can current cleaning methods actually clean the boards produced today?<\/p>\n

 <\/p>\n

\"\"<\/p>\n

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

PCB Assembly Name: Medical PCB Sphygmomanometer PCBA Assembly Supplier<\/p>\n

Surface Finish:HASL,Enig,OSP, Immersion Au,AG,Sn<\/p>\n

Minimum order:1pc<\/p>\n

Layer:1-18 layers<\/p>\n

Copper thickness:0.5oz-60z<\/p>\n

Plate thickness:0.2mm-4mm<\/p>\n

Minimum Hole Diameter:0.1mm(4 Mil)<\/p>\n

Minimum line spacing: 0.1mm(4 Mil)<\/p>\n

PCBA QC : X-ray,AOI Test,Function Test(100% Test)<\/p>\n

Specialty : Consumer, LED, Medical, Industrial, Control Boards<\/p>\n

Lead time: PCB, 7-10 days; PCBA, 2-3 weeks<\/p>","protected":false},"featured_media":1526,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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Assembly Name: Medical PCB Sphygmomanometer PCBA Assembly Supplier Surface Finish:HASL,Enig,OSP, Immersion Au,AG,Sn Minimum order:1pc Layer:1-18 layers Copper thickness:0.5oz-60z Plate thickness:0.2mm-4mm Minimum Hole Diameter:0.1mm(4 Mil) Minimum line spacing: 0.1mm(4 Mil) PCBA QC : X-ray,AOI Test,Function Test(100% Test) Specialty : Consumer, LED, Medical, Industrial, Control Boards Lead time: PCB, 7-10 days; PCBA, 2-3 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