Method for manufacturing solid-state imaging devices
View Patent ↗A solid-state imaging device is manufactured according to the steps below. A lattice-shaped rib forming member, which is an aggregation of a plurality of frame-shaped ribs for configuring a plurality of solid-state imaging devices, is resin-molded. An aggregate wiring board is used, which has regions corresponding to a plurality of the wiring boards, and in which a plurality of the wiring members are provided in each of the regions, and the imaging element is fastened to each region of the aggregate wiring board and the electrodes of the imaging elements and the wiring members are connected by a thin metal wire. The rib forming member is placed on the wiring board face and joined to the wiring board face, so that the imaging element is disposed inside the lattice elements of the rib forming member. The transparent plate is fastened to an upper face of the rib forming member, and each housing is cut in a direction perpendicular to the base portion, and in a direction dividing into two the width of the rib forming member, and separating the solid-state imaging devices into individual pieces It is possible to make a low cost housing, avoiding deformations caused by a difference in thermal expansion between the wiring board and the ribs made of a resin, when forming a plurality of housings together.
1. A method for manufacturing a solid-state imaging device which comprises a wiring board made of an insulating resin, frame-shaped ribs forming an internal space, the frame-shaped ribs being disposed on top of the wiring board, a plurality of wiring members for electrically conducting to an external portion from the internal space of a housing formed of the wiring board and the ribs, an imaging element fastened to the wiring board inside the internal space, a transparent plate fastened to an upper surface of the ribs, and connecting members which connect electrodes of the imaging element with the wiring members; the method comprising:
resin molding a lattice-shaped rib forming member, which is an aggregation of a plurality of frame-shaped ribs for configuring a plurality of solid-state imaging devices, with a cross sectional shape of the rib having a taper in a vertical direction;
using an aggregate wiring board, which has regions corresponding to a plurality of the wiring boards, and in which a plurality of the wiring members are provided in each of the regions;
fastening an imaging element to each region of the aggregate wiring board and connecting by the connecting members the electrodes of the imaging elements and the wiring members;
placing the rib forming member on the wiring board face and joining the rib forming member with the wiring board face, so that the imaging element is disposed inside the lattice elements of the rib forming member and the rib forming member is fastened to a wiring board face such that a narrow side of the ribs faces the wiring board;
fastening the transparent plate to an upper face of the rib forming member on a broader side of the rib; and
cutting each housing in a direction perpendicular to the base portion, and in a direction dividing into two the width of the rib forming member, and separating the solid-state imaging devices into individual pieces.
2. The method for manufacturing a solid-state imaging device according to claim 1 ,
wherein when fastening the transparent plate, the transparent plate of a size covering a plurality of housings is fastened to the top face of the rib forming member, and when cutting each housing, the transparent plate is also cut at the same time.
3. The method for manufacturing a solid-state imaging device according to claim 1 ,
wherein, when fastening the transparent plate, a plurality of transparent plates corresponding to the individual housings are used, edges of adjacent transparent plates are mounted onto the rib forming member forming a gap between the edges, and the solid-state imaging devices are separated into pieces in a region of the gaps.