J.C. Patents
Circuit structure
A circuit structure including a circuit board, an insulating layer, a conductive via, a platable dielectric layer and a conductive pattern is provided. The insulating layer is disposed on the circuit board and covers a circuit layer of the circuit board. The conductive via passes through the insulating layer and connects the circuit layer and protrudes from a surface of the insulating layer. The platable dielectric layer having a trench pattern is disposed on the surface of the insulating layer wherein the portion of the conductive via protruding from the surface is located in the trench pattern. The material of the platable dielectric layer includes a chemical platable material. The conductive pattern is in the trench pattern and connects the conductive via wherein an interface exists between the conductive pattern and the conductive via and protrudes from the surface of the insulating layer.
Unimicron Technology Corp.
H H H H H H H H H H
H05K H05K H05K H05K H05K H05K H05K H05K H05K H05K
additional additional additional inventional inventional additional additional additional additional additional
Chang-Ming Wen-Fang Cheng-Po Tzyy-Jang
Lee Liu Yu Tseng