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Parallel seam sealing is a resistance welding process used to hermetically seal electronic packages and other components that require protection from the ambient environment. A metal lid or cap is joined to a metal package or to a ceramic package with a metal seal ring, creating an air- and moisture-tight enclosure around the components inside.
AMADA WELD TECH parallel seam sealers provide precise control of the welding process and are available in configurations ranging from manual-load systems to automated lid placement, tacking, and seam sealing systems.
Parallel seam sealing uses two rotating wheel electrodes that travel along the perimeter of the package and lid. Controlled electrical current and force are applied through the electrodes, producing a series of overlapping resistance welds that form a continuous hermetic seam.
Consistent seam quality depends on precise control of key process variables, including:
Maintaining repeatable control of these parameters helps produce a consistent seal around the package perimeter.
AMADA WELD TECH parallel seam sealing systems combine precision motion with resistance welding process control to support a range of electronic packaging requirements.
Depending on the system configuration, capabilities can include:
Systems can be configured according to package size, geometry, production requirements, and desired level of automation.
Parallel seam sealing is commonly used for electronic and other sensitive packages that require isolation from moisture, air, and environmental contaminants.
Applications include:
For applications that require sealing within a controlled atmosphere, parallel seam sealing equipment can be integrated into a glovebox enclosure.
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