Method of implementing multiple pump speeds for dispensing a viscous material

摘要

The invention describes a method of operating a viscous material dispensing system (10) for dispensing viscous material from a movable dispensing element (20) for semiconductor packaging, the dispensing element (20) receiving viscous material from a pump (26) capable of supplying viscous material at multiple pump speeds, comprising the steps of: selecting a first pump speed for providing viscous material from a pump (26) to a dispensing element; determining a first dispensing characteristic from a first output characteristic at the first pump speed; selecting a second pump speed for providing viscous material from the pump to the dispensing element; and determining a second dispensing characteristic from a second output characteristic at the second pump speed.