ETS optimizes thermal energy transfer to electronic assemblies through its unique combination of Convection
and Infra-red heat delivery systems. Infra-red "boosters" provide quick temperature acceleration to
high thermal mass components or ground planes while Recirculating Hot Air (RHA) blowers maintain even
temperature to all areas of the assembly. Low mass coil heating elements provide quick response for
varying production loads ensuring process repeatability. Recycled and Cascaded air is drawn from the
low thermal mass process cavity with tangential blower wheels running the full width of the process
cavity for even airflow. The air is heated and forced through nozzles onto the product. Columnized air
retains its direction and velocity resulting in maximum impingement velocity on the product, high
energy transfer and Near Equilibrium Heating™. Air is cascaded
from one zone to the next reducing energy consumption.
The illustration above demonstrates sytem airflow as it is drawn (recycled) from the process
cavity by the tangential blower wheel, passes across the low mass coil heating element, pressurizes in
the heat plenum and impinges onto the product via the impingement nozzles. Infra-red heat boosters are
positioned between the rows of impingement nozzles.