In one embodiment, the present invention is a method and apparatus for multimedia collaboration using a social network system. The toolblock body includes a centerline axis. A motorized drive shaft rotates the control element so as to alternately connect the control element flow paths to openings inside housing. A higher density impurity region may be formed with a gate electrode and side wall insulating film as a mask. The coating provides lubrication during the piston and piston ring break-in period and prevents localized high pressure and high temperature areas that produce scuffing.