Hongqisheng Precision Electronics (qinhuangdao) Co., Ltd.

Avago Holding (shenzhen) Co., Limited.

Hai-Bo Qin

Meng-Lu Jia

A circuit board comprises a third conductive circuit layer, a third insulating layer, a first insulating layer, a first conductive circuit layer, a substrate, a second conductive circuit layer, a second insulating layer, a fourth insulating layer, and a fourth conductive circuit layer in that order from top to bottom. The circuit board defines at least one first conductive hole and at least one second conductive hole. Each one of the first conductive hole comprises a first conductive blind hole, and a third conductive blind hole aligned with and electrically connected to the first conductive blind hole. Each one of the second conductive hole comprises a second conductive blind hole, and a fourth conductive blind hole aligned with and electrically connected to the second conductive blind hole. A method for making the circuit board is also provided.

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Shenzhen, China

Hai-Bo Qin