US 8,427,748 B2 · Wafer-level lens array, method of manufacturing wafer-level lens array, lens module and imaging unit

Abstract

Disclosed are a wafer-level lens array, a method of manufacturing a wafer-level lens array, a lens module, and an imaging unit capable of preventing the permeation of air into a substrate unit or a lens unit to be molded when a wafer-level lens array having the substrate unit and the lens units integrated with each other is molded. There is provided a method of integrally manufacturing a wafer-level lens array including a substrate unit and a plurality of lens units arranged on the substrate unit using a transfer mold having a plurality of concave portions corresponding to at least the plurality of lens units provided in a surface thereof. The method includes: supplying a resin to each concave portion, the amount of resin supplied being more than the volume of the concave portion; and performing molding to integrate the resin overflowing from the concave portions, thereby forming the substrate unit.

Claims18

Dependent claims

A method of integrally manufacturing a wafer-level lens array including a substrate unit and a plurality of lens units arranged on the substrate unit using a transfer mold having a plurality of concave portions corresponding to at least the plurality of lens units provided in a surface thereof, comprising:

supplying a resin to each of the plurality of concave portions one by one, the amount of resin supplied being more than the volume of the concave portion;
and
performing molding to integrate the resin overflowing from the concave portions, thereby forming the substrate unit,
wherein:
the plurality of concave portions include concave portions corresponding to portions other than the lens units,
the resin is supplied to each of the plurality of concave portions, the amount of resin supplied being more than the volume of the concave portion,
molding is performed in this state to integrate the resin overflowing from the concave portions, thereby forming at least one of the substrate unit and the lens units, and
ribs are provided on the substrate unit so as to protrude from a surface of the substrate unit, in order to prevent warping of the substrate unit.

5 more elements

Dependencies are inferred from the claim text.

Wafer-level lens array, method of manufacturing wafer-level lens array, lens module and imaging unit

Life of this patent

Wafer-level lens array, method of manufacturing wafer-level lens array, lens module and imaging unit

Life of this patent

Abstract

Claims18