Invention Grant
US07888606B2 Multilayer printed circuit board 有权
多层印刷电路板

Multilayer printed circuit board
Abstract:
A multilayer printed circuit board has an IC chip included in a core substrate in advance and a mediate layer provided on a pad of the IC chip. Due to this, it is possible to electronically connect the IC chip to the multilayer printed circuit board without using lead members and a sealing resin. Also, by providing the mediate layer made of copper on the die pad, it is possible to prevent resin residues on the pad and to improve connection characteristics between the pad and a via hole and reliability.
Information query
Patent Agency Ranking
0/0