In an electronic component in which a semiconductor device such as a light
emitting diode is encapsulated by an encapsulation resin and a
manufacturing method of the same, formation of flash on occasion of
filling a resin is prevented. The semiconductor device (SIC) is mounted
in a reception concavity of a base member, and the encapsulation resin is
filled into the reception concavity. After mounting the semiconductor
device in the reception concavity and before filling the encapsulation
resin into the reception concavity, a stopper resin layer is formed on a
top face of the base member along a circumference of an aperture of the
reception concavity by applying a resin. Since the circumference of the
aperture of the reception concavity including electric conductive
patterns and the base member is covered by the stopper resin layer, even
when the encapsulation resin having low viscosity is filled into the
reception concavity, leakage or proceeding due to capillarity of the
encapsulation resin is prevented by the stopper resin layer. As a result,
no flash of leaked encapsulation resin is formed.