Abstract: A method for manufacturing a package structure includes providing a carrier board; providing at least one die having a top surface, a bottom surface, and a side surface on the carrier board; and forming a protective layer to cover at least a portion of the side surface of the die. The die includes a substrate, a semiconductor layer, a gate structure, a source structure and a drain structure, at least one dielectric layer, and at least one pad. The semiconductor layer is disposed on the substrate. The gate structure is disposed on the semiconductor layer. The source and the drain structures are disposed on opposite sides of the gate structure. The dielectric layer covers the gate, source, and drain structures. The pad is disposed on the dielectric layer and penetrates through the dielectric layer to electrically contact with the gate, source or drain structure.

Abstract: An LED tube lamp includes a first and second members and a connection member. Each of the first and second members includes lighting part and an end part. Each lighting part includes LED light strip. The connection member includes electrical connection portions and joining portions for the first and second members. The connection member connects the first member with the second member by the joining portions and the electrical connection portions and makes the first member substantially coaxial to the second member.

Abstract: A microscope, including an x motor, a y motor, and a z axis focusing driving mechanism that drive a stage to move; at least one knob operatively coupled to the x motor or y motor or the z axis focusing driving mechanism selectively via a controller; and at least one button coupled to the controller in communication. The controller is configured to disconnect a normal operative coupling between the knob and the z axis focusing driving mechanism and establish an operative coupling between the knob and the x motor or y motor when receiving a predetermined button signal, and restore the normal operative coupling between the knob and the z axis focusing driving mechanism and disconnect the operative coupling between the knob and the x motor or y motor when no longer receiving the predetermined button signal or when receiving a next button signal.

Abstract: A method for determining polarization properties of light from an object uses a detector for detecting the intensity of light incident thereon. A pair of variable retarders are positioned in the optical path with their slow optical axes at a 45.degree. angle to each other, and a polarized light analyzer is also placed in the optical path between the light retarders and the detector. For each of the light retarders, a base retardance level is determined. The base retardance level is such that when each of the light retarders is set at the base retardance thereof and light from an object is circularly polarized, the light analyzer will cause substantial extinction of light from the object that traverses the analyzer and the intensity of light from the object incident on the detector will be substantially zero.