Double-sided touch sensitive panel and flex circuit bonding

A mobile telephone having a capacitive touch sensor panel, the capacitive touch sensor panel comprising:

• a substrate formed from a dielectric material;
• a first set of non-overlapping traces of conductive material formed on a first side of the substrate and arranged along a first dimension of a two-dimensional coordinate system;
• a first connector area on the first side at a first edge of the substrate, the first connector area having first conductors coupled to the first set of traces;
• a second set of non-overlapping traces of the conductive material formed on a second side of the substrate and arranged along a second dimension of the two-dimensional coordinate system;
• and
• a second connector area on the second side at the first edge of the substrate, the second connector area directly opposing at least a portion of the first connector area and having second conductors coupled to the second set of traces;
• wherein sensors are formed at locations at which the first set of traces pass over the second set of traces while separated by the dielectric material of the substrate.

A digital audio player having a capacitive touch sensor panel, the capacitive touch sensor panel comprising:

• a substrate formed from a dielectric material;
• a first set of non-overlapping traces of conductive material formed on a first side of the substrate and arranged along a first dimension of a two-dimensional coordinate system;
• a first connector area on the first side at a first edge of the substrate, the first connector area having first conductors coupled to the first set of traces;
• a second set of non-overlapping traces of the conductive material formed on a second side of the substrate and arranged along a second dimension of the two-dimensional coordinate system;
• and
• a second connector area on the second side at the first edge of the substrate, the second connector area directly opposing at least a portion of the first connector area and having second conductors coupled to the second set of traces;
• wherein sensors are formed at locations at which the first set of traces pass over the second set of traces while separated by the dielectric material of the substrate.

A method for forming a capacitive touch sensor panel, comprising:

• forming and arranging a first set of non-overlapping traces of conductive material on a first side of a dielectric substrate along a first dimension of a two-dimensional coordinate system;
• reserving a first connector area on the first side at a first edge of the substrate, forming first conductors in the first connector area and connecting the first conductors to the first set of traces;
• forming and arranging a second set of non-overlapping traces of the conductive material formed on a second side of the substrate along a second dimension of the two-dimensional coordinate system;
• reserving a second connector area on the second side at the first edge of the substrate, the second connector area directly opposing at least a portion of the first connector area, forming second conductors in the second connector area and connecting the second conductors to the second set of traces;
• and
• forming sensors at locations at which the first set of traces pass over the second set of traces while separated by the dielectric material of the substrate.