Abstract: The present invention discloses a golf club head, particularly a club head structure for driving a golf ball, and the golf club head includes a club head body and a striking surface, and the striking surface is substantially in a hemispherical shape or a semicircular tubular shape, such that the golf ball also has a circular contact surface for producing a reaction force during a collision with each other to produce an explosive force at a ball striking point and drive the golf ball to a farther driving distance and enhance the practicability and value of the golf club head structure.

Abstract: A new method is provided for the creation of densely patterned interconnect lines. As a first step of the invention, the mask layout is modified such that the ratio of line width (L) to line spacing (S) is sharply decreased. The line pattern that is created using this mask reflects the same sharp reduction in the ratio L/S. The width of the thus created lines is, as a second step of the invention, increased by the process of thermal flow while the spacing between the lines is concurrently decreased by the same amount.