Abstract: A delivery system for dispensing material onto a semiconductor wafer is provided that includes an opening device and a dispensing device. The opening device is operable to open a packet of material. The dispensing device is operable to dispense the material from the packet onto the semiconductor wafer.

Abstract: The invention is an apparatus that is a synergistic combination of a windshield and a pilot light assembly for a gas burner heater. The apparatus provides reliable operation of the gas burner heater in high air flow conditions, where the air flow would normally cause the pilot light to be extinguished. The windshield, which is a partially perforated tubular chamber, provides a protected zone against high velocity air infusion for the entire pilot light assembly. The apparatus works in concert with the pilot light assembly, which also has components that provide protection from wind and can be quickly removed allowing quick cleaning and easy maintenance. The major components of the pilot light assembly are a pilot light orifice with a flame, a vented pilot housing (stack), a flame deflector cap, a pilot light gas line, a thermocouple with connecting electrical leads, a pilot base, a mounting bracket, and a windshield that surrounds the pilot light and the thermocouple.