Abstract:
A chip package is provided. The chip package includes a first chip including a carrier substrate and a device substrate thereon. A second chip is mounted on the device substrate. A portion of the device substrate extends outward from the edge of the second chip, so as to be exposed from the second chip. A conductive pad is between the device substrate and the second chip. A polymer protective layer conformally covers the second chip, the exposed portion of the device substrate, and the edge of the carrier substrate. A redistribution layer is disposed on the polymer protective layer and extends into a first opening that passes through the polymer protective layer and the second chip and exposes the conductive pad, so as to be electrically connected to the conductive pad.
Abstract:
This present invention provides a method of manufacturing a chip scale sensing chip package, comprising the steps of: providing a sensing device wafer having a first top surface and a first bottom surface opposite to each other, whereby the sensing device wafer comprises a plurality of chip areas, and each of the chip areas comprising a sensing device and a plurality of conductive pads adjacent to the sensing chip nearby the first top surface; providing a cap wafer having a second top surface and a second bottom surface opposite to each other, and bonding the second surface of the cap wafer to the first top surface of the sensing device wafer by sandwiching a first adhesive layer therebetween; providing a temporary carrier substrate, and bonding the temporary carrier substrate to the second top surface of the cap wafer by sandwiching a second adhesive layer therebetween; forming a wiring layer connecting to each of the conductive pads on the first bottom surface of the sensing device wafer; providing a first protective layer on the wiring layer; removing the temporary carrier substrate and the second adhesive layer; forming a second protective layer on the second top surface; removing the first protective layer; scribing the chip areas to generate a plurality of individual chip scale sensing chip package; and removing the second protective layer.