Touch screen stack-ups

A mobile telephone including a multi-touch sensor panel, the multi-touch sensor panel comprising:

• a glass subassembly having a front side capable of being touched, and a back side opposite the front side;
• a plurality of first traces of a first substantially transparent conductive material formed on the back side of the glass subassembly;
• a plurality of second traces of a second substantially transparent material;
• and
• a dielectric material coupled between the first traces and the second traces;
• wherein the second and first traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.

A digital audio player including a multi-touch sensor panel, the multi-touch sensor panel comprising:

• a glass subassembly having a front side capable of being touched, and a back side opposite the front side;
• a plurality of first traces of a first substantially transparent conductive material formed on the back side of the glass subassembly;
• a plurality of second traces of a second substantially transparent material;
• and
• a dielectric material coupled between the first traces and the second traces;
• wherein the second and first traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.

A method for forming a multi-touch sensor panel, comprising:

• forming a plurality of first traces of a first substantially transparent conductive material on a back side of a glass subassembly having a front side capable of being touched, and a back side opposite the front side;
• locating a plurality of second traces of a second substantially transparent material between the first traces and a layer of dielectric material;
• and
• orienting the second and first traces to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the glass subassembly.