DYNAMIC SYSTEM FOR VARIABLE HEATING OR COOLING OF LINEARLY CONVEYED SUBSTRATES

摘要

A system is provided for heating or cooling discrete, linearly conveyed substrates having a gap between a trailing edge of a first substrate and a leading edge of a following substrate in a conveyance direction. The system includes a chamber, and a conveyor operably configured within the chamber to move the substrates through at a conveyance rate. A plurality of individually controlled temperature control units, for example heating or cooling units, are disposed linearly within the chamber along the conveyance direction. A controller is in communication with each of the temperature control units to sequentially cycle output of the units from a steady-state temperature output along the conveyance direction as a function of position of the leading and trailing edges of the substrates within the chamber relative to the temperature control units so as to reduce edge-induced temperature variances in the substrates.