Abstract: A gas permeable metal with a porosity gradient and a method of manufacturing the same are provided. A second lamination layer and a third lamination layer are respectively connected to two opposite sides of a first lamination layer. A pore diameter of the first lamination layer is larger than that of the second lamination layer. Thereby while being applied to molds, a mold cavity is mounted in the second lamination layer with smaller pore diameter so that products formed have fine and smooth surfaces. The arrangement of the first lamination layer with larger pore diameter is used for effective escape of gas generated during product production process. According to production requirements for products, a pore diameter of the third lamination layer can be adjusted to be not larger than that of the first lamination layer. Thus mechanical strength and gas exhaust capacity can be balanced.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A semiconductor package including a ring structure with one or more indents and a method of forming are provided. The semiconductor package may include a substrate, a first package component bonded to the substrate, wherein the first package component may include a first semiconductor die, a ring structure attached to the substrate, wherein the ring structure may encircle the first package component in a top view, and a lid structure attached to the ring structure. The ring structure may include a first segment, extending along a first edge of the substrate, and a second segment, extending along a second edge of the substrate. The first segment and the second segment may meet at a first corner of the ring structure, and a first indent of the ring structure may be disposed at the first corner of the ring structure.

Abstract: An antenna structure includes a base, at least one first extending member and at least one second extending member. The base is detachably and pivotally connected to the first extending member, and includes a first transmitting unit. The first extending member is detachably and pivotally connected to the second extending member, and includes a second transmitting unit. The second extending member includes a third transmitting unit. The first transmitting unit is electrically connected to the second transmitting unit, and the second transmitting unit is electrically connected to the third transmitting unit.

Abstract: An antenna structure includes a base, at least one first extending member and at least one second extending member. The base is detachably and pivotally connected to the first extending member, and includes a first transmitting unit. The first extending member is detachably and pivotally connected to the second extending member, and includes a second transmitting unit. The second extending member includes a third transmitting unit. The first transmitting unit is electrically connected to the second transmitting unit, and the second transmitting unit is electrically connected to the third transmitting unit.