Abstract: Some embodiments relate to an integrated chip including a substrate having a first side and a second side opposite the first side. The integrated chip further includes a first photodetector positioned in a first pixel region within the substrate. A floating diffusion region with a first doping concentration of a first polarity is positioned on the first side of the substrate in the first pixel region. A first body contact region with a second doping concentration of a second polarity different from the first polarity is positioned on the second side of the substrate in the first pixel region.

Abstract: A detection system and method for the migrating cell is provided. The system is configured to detect a migrating cell combined with an immunomagnetic bead. The system includes a platform, a microchannel, a magnetic field source, a coherent light source and an optical sensing module. The microchannel is configured to allow the migrating cell to flow in it along a flow direction. The magnetic field source is configured to provide magnetic force to the migrating cell combined with the immunomagnetic bead. The magnetic force includes at least one magnetic force component and the magnetic force component is opposite to the flow direction of the microchannel. The coherent light source is configured to provide the microchannel with the coherent light. The optical sensing module is configured to receive the interference light caused by the coherent light being reflected by the sample inside the microchannel.

Abstract: A heatsink for electronic component is provided. The heatsink has its fins made from metallic plates having multiple cavities of irregular shapes and dimensions dispersed within the metallic plates. For fins made from these porous metallic plates, the cavities or pores significantly increase the surface areas of the fins exposed to the air and these fins, therefore, have a superior heat dissipation capability than those fins made of the same material but with no pores. When operated with an auxiliary fan, the pores of the fins provide additional passages to the air flow and the fins are able to achieve a better wind-chill effect.