A folding portable cellular phone includes a first box member and a second box
member. The first box member includes: an upper case having a window for a display
unit; an upper substrate on which electric parts are mounted; an upper hinge frame;
and an upper cover on which these components are mounted. The second box member
includes: a lower cover in which key holes are formed to provide a key console
unit; a lower substrate including a PCB (Printed Circuit Board) on which electric
parts are mounted; a lower hinge frame; and a lower case on which these components
are mounted.
