Taiwan Semiconductor Manufacturing Comp. Ltd.

Yuan-Fu Liu

Cheng-Lin Huang

Chin-Yu Ku

Chien-Ming Huang

Wei-Chih Huang

Wen-Ming Chen

Chun-Yen Lo

Yu-Nu Hsu

Te-Hsun Pang

Chen-Hsun Liu

Chien-Pin Chan

Chi-Hung Lin

Meng-Fu Shih

Yung-Chiuan Cheng

External electrical connectors and methods of forming such external electrical connectors are discussed. A method includes forming an external electrical connector structure on a substrate. The forming the external electrical connector structure includes plating a pillar on the substrate at a first agitation level affected at the substrate in a first solution. The method further includes plating solder on the external electrical connector structure at a second agitation level affected at the substrate in a second solution. The second agitation level affected at the substrate is greater than the first agitation level affected at the substrate. The plating the solder further forms a shell on a sidewall of the external electrical connector structure.

Conductive external connector structure and method of forming

Growing community of inventors

Kaohsiung, Taiwan

Yuan-Fu Liu