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Staking Components on Circuit Boards: Pro Tip #20

PVA Pro Tip #20: Enhancing Circuit Board Durability

Precision Staking

Staking components on circuit boards prevents fractures in solder joints due to excessive shock, vibration, or thermal stress. This is achieved by dispensing a bead of adhesive that bridges the component and the board surface to create an anchor.  Staking can be done on small surface mount components up to large, heavy through hole components. 

Staking materials can range from epoxies to silicones to urethanes in single or dual-component formulations. 

A simple staking process can be implemented using a dispense valve on a three-axis robot. While dots and lines can be applied in 2D and 3D patterns, for more complex tasks, four-axis motion allows you to tilt and rotate the dispense head to access difficult to reach areas. Process controls such as a fiducial camera, height sensor, flow monitoring, and needle calibration can help improve the reliability of your process. 

Contact PVA today, and let us help to make you a pro.