| 摘要 |
<p>An apparatus for and method of depositing a viscous material on a substrate, the apparatus comprising: a delivery head (27) for containing a viscous material and delivering the viscous material to a substrate (3), wherein the delivery head (27) includes first and second thermally-connected surfaces, the first surface being in thermal contact with the contained viscous material; a temperature sensor (83) for sensing the temperature of the viscous material; heat transfer means thermally connected to the second surface of the delivery head (27); and a control unit (121) coupled to the heat transfer means and the temperature sensor (83) and being operably configured to control the heat transfer means to transfer heat selectively to and from the second surface of the delivery head (27) in response to the sensed temperature such as to maintain the temperature of the viscous material within a predeterminable temperature range.</p> |
