Chemical vapor deposition is enhanced by compensating for a depleted gas concentration zone in a CVD reactor. The semiconductor structure further includes a PMOS device at the surface of the semiconductor substrate, wherein the PMOS device comprises a sourcedrain extension region comprising only non-metal materials. The first member and the second member are positioned opposite each other and separated by a first distance at rest. A grip portion is attached to the body of the handpiece anywhere between the distal end and the proximal end, comprising a grip stop against which the operator’s hand rests while gripping the handpiece and using the tool. 5; and a content of 10 to 50 wt % based on the liquid pesticide composition.