Abstract: A contacting member of a contact probe for a probe system for performing a functionality test to a DUT includes a body, a contact tip, and a tip transition section between the body and the contact tip. A bottom side of the contacting member, which faces toward the DUT when testing the DUT, includes a lower surface at the body, a tip bottom surface at the contact tip, and a tip transition surface at the tip transition section. A contact end of the contact tip for contacting the DUT is located on a front side of the tip bottom surface. A rear side of the tip bottom surface and the lower surface have a height difference therebetween. The tip transition surface gradually changes in height from the lower surface to the rear side of the tip bottom surface. The contacting member has high precision and structural strength.

Abstract: A probe card includes a space transformer, a printed circuit board and a plurality of welding elements. The space transformer is disposed with a plurality of first conductive protrusions. Each of the first conductive protrusions has a first end surface. The printed circuit board is disposed with a plurality of second conductive protrusions. Each of the second conductive protrusions has a second end surface. The welding elements are respectively and electrically connected between each of the second end surfaces and the corresponding first end surface. A first surface of the space transformer away from the printed circuit board has a first degree of flatness. A second surface of the printed circuit board away from the space transformer has a second degree of flatness. The first degree of flatness is less than the second degree of flatness.

Abstract: A fan frame of a centrifugal fan comprises a housing and an inlet structure. The housing includes an opening. The inlet structure is disposed at the opening and includes a top portion and an edge portion. The top portion is disposed around the opening and includes a plurality of first chamfering angles, at least one of the chamfering angles is different from the others. The edge portion extends from the top portion to the inside of the housing through the opening and includes a plurality of second chamfering angles. A centrifugal fan including the fan frame is also disclosed.

Abstract: A fan frame of a centrifugal fan comprises a housing and an inlet structure. The housing includes an opening. The inlet structure is disposed at the opening and includes a top portion and an edge portion. The top portion is disposed around the opening and includes a plurality of first chamfering angles, at least one of the chamfering angles is different from the others. The edge portion extends from the top portion to the inside of the housing through the opening and includes a plurality of second chamfering angles. A centrifugal fan including the fan frame is also disclosed.

Abstract: An LED lamp including a lamp housing, an LED light source, a heat sink and a control circuit. The lamp housing has an accommodating space, a plurality of air inlets and a plurality of air outlets, wherein the accommodating space joins an environment through the air inlets and the air outlets. The LED light source and the heat sink are disposed in the accommodating space and the heat sink is connected with the LED light source. The heat sink includes a pedestal and a plurality of heat dissipation fins connected to the pedestal. An air convection channel is located between any two adjacent heat dissipation fins. Air from the environment flows into the accommodating space, passes through the air convection channel, and leaves the accommodating space via the air outlets sequentially. The control circuit is disposed in the accommodating space and connected to the LED light source.

Abstract: An LED lamp including a lamp housing, an LED light source, a heat sink and a control circuit. The lamp housing has an accommodating space, a plurality of air inlets and a plurality of air outlets, wherein the accommodating space joins an environment through the air inlets and the air outlets. The LED light source and the heat sink are disposed in the accommodating space and the heat sink is connected with the LED light source. The heat sink includes a pedestal and a plurality of heat dissipation fins connected to the pedestal. An air convection channel is located between any two adjacent heat dissipation fins. Air from the environment flows into the accommodating space, passes through the air convection channel, and leaves the accommodating space via the air outlets sequentially. The control circuit is disposed in the accommodating space and connected to the LED light source.