Patent ID: 11942465
Assignee: ZHUHAI ACCESS SEMICONDUCTOR CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. The manufacturing method of claim 1, wherein preparing a first circuit layer connected to the terminal on the surface of the second dielectric layer and producing a metal pillar through the second dielectric layer comprises:
forming a metal seed layer on the surface of the second dielectric layer by electroless copper plating or sputtering;
laminating photoresist, and patterning the photoresist to expose a pattern for the first circuit layer and a metal pillar pattern; and
electroplating the pattern for the first circuit layer and the metal pillar pattern to form the first circuit layer and the metal pillar,
wherein the first circuit layer is directly electrically connected to the terminal through the seed layer.