Patent ID: 8889994
Filing Date: 2014-11-18
Classification: H05K,Y10T

Abstract:
1. A method of manufacturing a single-layered printed circuit board, the method comprising: forming a bonding pad, a circuit pattern and a post on a surface of an insulation film, one end part of the post being electrically connected to at least a portion of the circuit pattern; pressing an insulator on the surface of the insulation film, wherein the circuit pattern and the post are buried in the insulator; forming a groove by selectively etching the insulator such that the other end part of the post is exposed; and opening a portion of the insulation film such that at least a portion of an upper surface of the bonding pad is exposed, wherein a height of the post is greater than a thickness of the circuit pattern, the circuit pattern is covered by the insulator so as not to be exposed and the other end part of the post is only exposed by the groove, an area of a transverse section of the groove is wider than an area of a transverse section of the other end of the post such that the other end of the post is positioned inside the groove and an outer perimeter of the other end of the post is exposed, and an electronic component is directly connected to the upper surface of the exposed bonding pad by a flip-chip method.