Connection-less building block e.g. quad-flat no-leads building block has contacts with through hole, which is extended along vertical dimension of lower surface along transverse complete vertical dimension of contact

摘要

The building block (2) has lead frame that is encapsulated in a molding material (12), which extends in a transverse plane of block. The contacts (10) are provided with a through hole (28) which is extended along a transverse complete vertical dimension of contact extending to an upper surface which is adjacent to mold material. The through hole is made of solder material. Several contacts of lead frame are sealed also in the molding material to define an outer lower transverse surface extending in a direction of lead frame. The loose connection block is provided with an outer vertical surface which extends in a direction perpendicular to lead frame. Independent claims are included for the following: (1) arrangement of connection-less building block; and (2) method for manufacturing building block.