Abstract: A method is provided for forming an integrated circuit (IC) chip package structure. The method includes providing a substrate for an interposer, and forming a conductive interconnect structure in and on the substrate for connecting a group of selected IC dies. The method includes forming warpage-reducing trenches in non-routing regions of the interposer, wherein the warpage-reducing trenches are sized and positioned based on a warpage characteristic to reduce the warpage of the chip package structure. The method also includes depositing a warpage-relief material in the warpage-reducing trenches according to the warpage characteristic to reduce the warpage of the chip package structure, and bonding the group of selected IC dies to the interposer to form a chip package structure.

Abstract: A wafer container includes a frame, a door and at least a pair of shelves. The frame has opposite sidewalls. The pair of the shelves are respectively disposed and aligned on the opposite sidewalls of the frame. Various methods and devices are provided for holding at least one wafer to the shelves during transport.

Abstract: A vertical axis wind turbine with wingletted cam-tiltable blades is provided, including: a generator, a shaft interconnected with the generator, and a plurality of blade sets coupled to the shaft. Cam members are provided inside the shaft and have guide sections of predetermined shapes. The blade set includes blades that are coupled to crank arms in contact with the guide sections. Thus, when the blades are located in a windward position and a leeward position respectively, the blades are caused by the guide sections to automatically and easily set at an optimum pressure-receiving condition and a least wind-resistance condition respectively, for receiving wind energy from variable directions so that the shaft can be rotated in low wind speed conditions to drive the generator for power generation.

Abstract: A vertical axis windmill includes a generator, a shaft mounted to the generator; and a plurality of blade sets. The blade set includes a blade rod rotatably connected to the shaft and carrying blades arranged on opposite sides of the shaft. Each blade is divided into first and second moment-inducing sections located on opposite sides of the blade rod. The first moment-inducing section is greater in area than the second moment-inducing section. Each blade is provided, at a predetermined location thereof, with a winglet. Stops for limiting swiveling of the blade are arranged on the blade set. When the blade set is moved so that the blades thereof are located in a windward position and a leeward position respectively, the blades are automatically and easily set at an optimum pressure-receiving condition and a least wind-resistance condition respectively, for receiving wind energy from variable directions.

Abstract: A fluid-driven turbine includes a main driving shaft defining a shaft axis and a plurality of blade sets symmetrically disposed about the main driving shaft. Each of the plurality of blade sets includes a rod extending radially from the main driving shaft in a direction transverse to the shaft axis. The rod defines a rod axis. Each blade set also includes a fluid-tiltable blade connected to the rod and extending along the direction of the rod axis. It has an airfoil shape in cross-section with a leading edge, a trailing edge, and a maximum thickness. The blade is divided into first and second moment-inducing sections located on opposite sides of the rod with the first moment-inducing section being greater in area than the second moment-inducing section. Also, it is rotatable about the rod axis between an optimum pressure-receiving position and a least fluid-resistance position for receiving fluid energy from variable directions.