Patent ID: 11923314
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A semiconductor package comprising:
a connection structure comprising a redistribution layer;
under bump metal layers on the redistribution layer, wherein the under bump metal layers extend in a first direction and are spaced apart from each other in a second direction different from the first direction;
a passivation layer on the connection structure, wherein the passivation layer overlaps at least portions of side faces of the under bump metal layers and has an I-shaped trench extending in the first direction between the under bump metal layers;
a surface mount element on the under bump metal layers and electrically connected to the redistribution layer through the under bump metal layers; and
an underfill material layer that at least partially is between a portion of the passivation layer and a portion of the under bump metal layers, and is in the I-shaped trench,
wherein upper and lower portions of the I-shaped trench are wider than a middle portion of the I-shaped trench.