A method for attaching a workpiece, for example a semiconductor die, to a
workpiece holder, for example a lead frame die support, comprises the
steps of interposing an uncured adhesive between the semiconductor die
and the die support and preheating the adhesive from an ambient
temperature to a preheat temperature of between about 150.degree. C. and
about 160.degree. C. over a period of about 1.5 seconds. Next, the
preheat temperature is maintained for about 1.5 seconds, then the
adhesive is further heated to a temperature of between about 190.degree.
C. and about 200.degree. C. over a period of about 1.0 second. The
inventive method quickly cures the adhesive to secure the die to the
support with acceptably low levels of voiding. An apparatus which can be
adapted to perform the inventive method is further described.