Patent ID: 7205483
Filing Date: 2007-04-17
Classification: G03G,H01L,H05K

Abstract:
1. A flexible substrate comprising: a film; a first insulating resin layer on a front face of said film, and a second insulating resin layer on a rear face of said film, with said front and rear faces facing in opposite directions; and a front-sided wiring pattern embedded in said first insulating resin layer, and a rear-sided wiring pattern embedded in said second insulating resin layer, wherein a surface of said front-sided wiring pattern is flush with a surface of said first insulating resin layer, and a surface of said rear-sided wiring pattern is flush with a surface of said second insulating resin layer, with said surface of said first insulating resin layer and said surface of said second insulating resin layer being spaced from said film, and wherein a part of at least one of said front-sided wiring pattern and said rear-sided wiring pattern is dented toward a part of the other of said at least one of said front-sided wiring pattern and said rear-sided wiring pattern such that a portion of said front-sided wiring pattern and a portion of said rear-sided wiring pattern are jointed to each other to form a junction.