Patent ID: 8729681

Claim:
A package structure, comprising: a base unit having a carrier member and at least one through hole penetrating through the carrier member, wherein at least one annular structure is formed in the at least one through hole; a pin unit having a plurality of conductive pins disposed beside the carrier member; and a housing unit having an annular housing encircling the carrier member to envelop one part thereof and connecting to the pin unit, wherein the annular housing is partially filled into the at least one through hole to cover the at least one annular structure; wherein each of the conductive pins has at least one inside pin hole and at least one outside pin hole, the at least one inside pin hole is filled with the annular housing, the at least one outside pin hole has a first hole portion adjacent to the carrier member and a second hole portion connecting to the first hole portion, the first hole portion of each of the conductive pins is filled with the annular housing, the second hole portion of each of the conductive pins is exposed from the annular housing, and each of the conductive pins has at least one pin trench or pin projection encapsulated by the annular housing.