Through holes are preformed in a ceramic sheet to form recessed portions
at corners or side ends of a package 2 used for a solid-state image device.
The package is positioned by allowing projections 52, 53, and 54 of
a positioning jig 51 to come into contact with end faces 5 and 6
in the recessed portions along their shapes. The accuracy in combining a solid-state
image element and a lens block is improved by using a method of positioning a package
in which burrs caused when the package is produced by dividing a ceramic baked
product do not affect the accuracy.
