JPS5764709A - Color filter - Google Patents

Abstract

PURPOSE:To increase the yield and reliability of a color filter by cutting grooves in the edge parts of the one side, where a colored layer is formed, of a transparent base plate and adhering the filter with a solid-state image pickup element to make bubbles in adhesive stay in the groove and prevent the bubbles from flowing into the adhered surface revesely. CONSTITUTION:When arc or angular grooves 14 cut on the edge parts of the one side, where a colored layer 15 is formed, of an optical glass base plate 13 are adhered with a solid-state image pickup element 1, the size of the grooves 14 is found from the difference between the quantity of adhesive required for the adhesion and the volume of the adhering layer so that the grooves absorb adhesive extruded from the adhering layer and bubbles. Thus, bubbles 17 extruded at the arrangement of the color filter are stayed in the grooves 14 without reverse flow into the adhering layer 16, omitting the process to remove the adhesive extruded around the upper surface of the filter 13 or that flowing into the bonding pad part of the element 1.