US Patent 9905722 Optical device, optical module structure and manufacturing process

An optical module structure includes a light source, a light receiver, a dielectric layer, a circuit layer, an encapsulant and a light shielding structure. The light source is embedded in the encapsulant, and a first surface of the light source is exposed from a first surface of the encapsulant. The light receiver is embedded in the encapsulant, and a first surface of the light receiver is exposed from the first surface of the encapsulant. The dielectric layer is disposed on the first surface of the encapsulant. The circuit layer is disposed on the dielectric layer and electrically connected to the light source and the light receiver. The light shielding structure is disposed in the dielectric layer corresponding to a location between the light source and the light receiver.