ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/asymtek/your-process/fluid-types/rtv-silicone
) Silicone Room Temperature Vulcanizing (RTV) Silicone RTV silicone is a rubber that cures when exposed to air at room temperature. It is used as an adhesive sealant in automotive, consumer, industrial, avionics, aerospace, and military electronics RTV staking applications to ensure reliability
| https://www.eptac.com/soldertips/solder-pot-maintenance-and-dross-removal/
. The amount of dross generated in a wave solder system can be enormous due to the turbulence of the wave from wave generation and from the amount of surface area of the exposed molted metal within the system
| https://www.eptac.com/faqs/ask-helena-leo/ask/post-lead-trimming-reflow-requirements
. The only place that addresses where a lead be covered with solder is in J-STD-001 ES, section 4.18.1 Exposed Surfaces, where it states
Imagineering, Inc. | https://www.pcbnet.com/blog/what-is-the-pcb-fabrication-process/
. Laser direct imaging exposes certain parts of the board to light in the shape of the PCB pattern. Any unexposed parts of the board will develop off, leaving the remaining film as an etch barrier The remaining film serves as an etch barrier that will be removed from the exposed copper to form the copper circuitry
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/polymer-processing-systems/products/barrels/smartheat-coating
-up and reduced cycle times Reduced downtime through easy to clean surfaces Maximized operator safety with elimination of exposed wires and cool-to-the-touch surface Improved ROI
| https://www.eptac.com/soldertip/solder-pot-maintenance-and-dross-removal/
. The amount of dross generated in a wave solder system can be enormous due to the turbulence of the wave from wave generation and from the amount of surface area of the exposed molted metal within the system
| https://www.eptac.com/faqs/soldertips/soldertip/solder-pot-maintenance-and-dross-removal
. The amount of dross generated in a wave solder system can be enormous due to the turbulence of the wave from wave generation and from the amount of surface area of the exposed molted metal within the system
Surface Mount Technology Association (SMTA) | https://www.smta.org/harsh/tech2018.cfm
. Martin Wickham of NPL will present research on coating systems for organic PCBs that are designed to operate at 250°C. The research finds that there is a reduction in oxidation rates to exposed metals in both the inner and outer layers within multilayer structures
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_blind-via-with-smaller-solder-mask-opening_topic1110.xml
;So I contacted a different assembly shop and they said "No problem, bring in the bare boards and we'll touch up the exposed vias with a special mask material that
| http://etasmt.com:9060/te_news_bulletin/2021-08-31/23572.chtml
solder film and the base metal is not exposed. Process and design-related causes: • Solder paste flux not aggressive enough for level of oxidation present on part or PCB
