Abstract: A miniaturized image sensor module including a substrate, a photosensitive chip, a transparent layer, an injection molded structure, and a lens barrel. The substrate has an upper surface, a lower surface and a slot. The chip is electrically connected to the lower surface of the substrate with a photosensitive region of the chip exposed from the slot. The transparent layer is arranged on the upper surface of the substrate to cover over the slot. The injection molded structure encapsulates and packages the substrate and the chip and is formed with a frame layer on a top of the transparent layer. The frame layer is formed with an internal thread and the lens barrel is formed with an external thread to be screwed to the internal thread. The lens barrel is formed with a chamber and an opening communicating with the chamber. An aspheric lens is also arranged within the chamber.

Abstract: An injection molded image sensor module includes an image sensor, an injection molded body for sealing the image sensor, a lens barrel and an aspheric lens. The image sensor includes a substrate, a frame layer on the substrate, a photosensitive chip electrically connected to the substrate, and a transparent layer placed on a top of the frame layer so that the photosensitive chip may receive optical signals passing through the transparent layer. The injection molded body has a first end face, a second end face, a hole and an internal thread formed in the hole so that the image sensor may receive the optical signals passing through the hole. The lens barrel has an external thread, a chamber and a transparent region. The external thread is screwed to the hole of the injection molded body. The aspheric lens is arranged within the chamber and under the transparent region.

Abstract: A miniaturized image sensor module including a substrate, a photosensitive chip, a transparent layer, an injection molded structure, and a lens barrel. The substrate has an upper surface, a lower surface and a slot. The chip is electrically connected to the lower surface of the substrate with a photosensitive region of the chip exposed from the slot. The transparent layer is arranged on the upper surface of the substrate to cover over the slot. The injection molded structure encapsulates and packages the substrate and the chip and is formed with a frame layer on a top of the transparent layer. The frame layer is formed with an internal thread and the lens barrel is formed with an external thread to be screwed to the internal thread. The lens barrel is formed with a chamber and an opening communicating with the chamber. An aspheric lens is also arranged within the chamber.

Abstract: A method for forming flip-chip bumps of a semiconductor chip includes the steps of: providing a wafer including a plurality of chips, each of which having a plurality of bonding pads and a trace region; providing a protection layer to cover each of the trace regions of the chips; forming the bumps on the bonding pads of each chip, respectively; and removing the protection layer on each of the chips.

Abstract: An injection molded image sensor module includes an image sensor, an injection molded body for sealing the image sensor, a lens barrel and an aspheric lens. The image sensor includes a substrate, a frame layer on the substrate, a photosensitive chip electrically connected to the substrate, and a transparent layer placed on a top of the frame layer so that the photosensitive chip may receive optical signals passing through the transparent layer. The injection molded body has a first end face, a second end face, a hole and an internal thread formed in the hole so that the image sensor may receive the optical signals passing through the hole. The lens barrel has an external thread, a chamber and a transparent region. The external thread is screwed to the hole of the injection molded body. The aspheric lens is arranged within the chamber and under the transparent region.

Abstract: A method for cutting a wafer. The method includes the steps of: providing a first protection layer; providing a wafer, which comprises a top surface, a bottom surface mounted to the first protection layer, a plurality of semiconductor chips, and saw streets formed between adjacent semiconductor chips on the top surface of the wafer; providing a second protection layer to cover the top surface of the wafer so as to protect the top surface of the wafer; provide a cutter to cut the wafer into a plurality of individual semiconductor chips along the saw streets on the top surface of the wafer; and removing the first protection layer and second protection layer on each semiconductor chip. Thus, it is possible to prevent the waste chips generated during the cutting process from contaminating each semiconductor chip.