Optical coupling device

An optical coupling device comprising:

• an optical fiber block including a first block part and a second block part contacting one side of the first block part;
• an optical fiber penetrating the optical fiber block and having an end surface exposed at a bottom surface of the optical fiber block;
• a semiconductor chip disposed below the optical fiber block, the semiconductor chip having a top surface on which an optical input/output element is disposed such that the optical input/output element corresponds to the end surface of the optical fiber;
• and
• a planarization layer disposed on the top surface of the semiconductor chip and having a recess region,
• wherein a bottom surface of the first block part has a higher level than a bottom surface of the second block part from a bottom surface of the semiconductor chip, the bottom surface of the second block part contacts a bottom of the recess region, and the optical fiber is optically coupled with the optical input/output element, and
• wherein the end surface of the optical fiber has the same level as the bottom surface of the first block part.

An optical coupling device comprising:

• an optical fiber block including a first block part and a second block part directly contacting one side of the first block part;
• an optical fiber penetrating the optical fiber block and having an end surface exposed at a bottom surface of the optical fiber block;
• a semiconductor chip disposed below the optical fiber block, the semiconductor chip having a top surface on which an optical input/output element is disposed such that the optical input/output element corresponds to the end surface of the optical fiber;
• and
• a planarization layer disposed on the top surface of the semiconductor chip and having a recess region,
• wherein a bottom surface of the first block part has a higher level than a bottom surface of the second block part from a bottom surface of the semiconductor chip, the bottom surface of the second block part contacts a bottom of the recess region, and the optical fiber is optically coupled with the optical input/output element.