Patent ID: 6931650

Claim:
A flexible printed circuit sheet (FPC) employed in a pickup device for one of recording information onto and reproducing information from an optical medium using a hologram unit having a laser beam source and a photodetector inside, said FPC having: a single conductive layer whose top and rear faces are insulated by an insulating film; and said FPC comprising: a main lead for supplying power and transmitting a signal; a component mounting land for mounting a component, said component mounting land being disposed adjacent to said main lead; an IC mounting land for mounting an IC, said IC mounting land being disposed adjacent to said component mounting land; and a hologram connecting land for connecting said hologram unit; wherein said hologram connecting land is formed on the FPC with an opening to branch from said component mounting land, and wherein said opening is an approximate rectangular and surrounded by said hologram connecting land and two bridging portions that bridge to said hologram connecting land, wherein said FPC has an IC shielding adjacent to said IC mounting land, and wherein said IC shielding has said conductive layer on its entire area and a shape that covers an entire area of said IC mounting land when said IC shielding is bent.