Patent ID: 11955403
Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A semiconductor package comprising:
a header for the semiconductor package including:
an eyelet having an upper surface and a lower surface;
a first metal block molded integrally with the eyelet, protruding at the upper surface of the eyelet, and having a substantially U shape viewed from a normal direction of the upper surface of the eyelet;
a first lead sealed in a first through hole penetrating the eyelet from the upper surface to the lower surface of the eyelet;
a first substrate having a front surface formed with a first signal pattern electrically connected to the first lead and having a back surface that is an opposite side surface of the front surface, the back surface being fixed to a first end surface of the first metal block;
a second lead sealed in a second through hole penetrating the eyelet from the upper surface to the lower surface of the eyelet; and
a second substrate having a front surface formed with a second signal pattern electrically connected to the second lead and having a back surface that is an opposite side surface of the front surface of the second substrate, the back surface of the second substrate being fixed to a second end surface of the first metal block;

a Peltier device arranged on the upper surface of the eyelet and away from the first metal block, at least a portion of the Peltier device being located inside the U shape of the first metal block;
a second metal block arranged on the Peltier device and away from the first metal block, at least a portion of the second metal block being located inside the U shape of the first metal block, the second metal block having a side surface facing a direction that is same as the first end surface and the second end surface; and
a third substrate having a front surface on which a light emitting device is mounted, and a back surface that is an opposite side surface of the front surface of the third substrate, the back surface of the third substrate being fixed to the side surface of the second metal block.