Touch-sensor device having electronic component situated at least partially within sensor element perimeter

• US 20080110739A1
• Filed: 11/13/2006
• Published: 05/15/2008
• Est. Priority Date: 11/13/2006
• Status: Abandoned Application

• Current Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: Li, Guang Hai, Peng, Tao
• Application Number:
  US11/599,234
• Publication Number:
  US 20080110739A1
• Time in Patent Office: Days
• US Class Current: 200/5R
• CPC Class Codes: G06F 3/03547 Touch pads, in which fingers can move on a surface
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
• CPC Class Codes: H03K 2217/96066 Thumbwheel, potentiometer, scrollbar or slider simulation by touch switch
• CPC Class Codes: Y10T 29/49105 Switch making

Abstract

A touch-sensor device including a substrate, a plurality of sensor elements, an active electronic component, and a plurality of traces is described. The plurality of sensor elements are non-linearly disposed upon the substrate and can define a perimeter. The active electronic component can be disposed upon the substrate and situated at least partially within the perimeter. The plurality of traces can be disposed upon the substrate to couple with the plurality of sensor elements and the active electronic component. The substrate may have an area approximately equal to an area of the perimeter.

Claims

1. A touch-sensor device, comprising:

a substrate;

a plurality of sensor elements, non-linearly disposed upon the substrate, that define a perimeter;

an active electronic component disposed upon the substrate and situated at least partially within the perimeter and

a plurality of traces disposed upon the substrate, the traces coupled with sensor elements and the active electronic component.

2. The touch-sensor device of claim 1, wherein:

the substrate has a top layer and a bottom layer;

the plurality of sensor elements and the active electronic component are disposed upon the top layer; and

the plurality of traces are disposed upon the bottom layer.

3. The touch-sensor device of claim 2, further comprising an electrical ground disposed on the bottom layer.

4. The touch-sensor of claim 1, wherein the substrate has a top layer, and wherein the plurality of sensor elements, the active electronic component, and the plurality of traces are disposed upon the top layer.

5. The touch-sensor of claim 4, wherein the substrate has a bottom layer, and wherein an electrical ground is disposed upon the bottom layer.

6. The touch-sensor device of claim 1, further comprising:

a separate sensor element disposed upon the substrate; and

a separate trace coupling the separate sensor element with the active electronic component.

7. The touch-sensor device of claim 6, wherein the separate sensor element is situated within the perimeter.

8. The touch-sensor device of claim 6, wherein the substrate has a top layer and a bottom layer, wherein the separate sensor element is disposed upon the top layer, and wherein the plurality of sensor elements, active electronic component, plurality of traces and separate trace are disposed upon the bottom layer.

9. The touch-sensor device of claim 6, wherein the substrate has a top layer and a bottom layer, wherein the separate sensor element and the plurality of sensor elements are disposed upon the top layer, and wherein the active electronic component, plurality of traces and separate trace are disposed upon the bottom layer.

10. The touch-sensor device of claim 9, further comprising an electrical ground disposed on the bottom layer.

11. The touch-sensor device of claim 1, wherein the substrate has an area approximately the size of a perimeter.

12. The touch-sensor device of claim 1, wherein the active electronic component is situated in approximately a center of the perimeter.

13. The touch-sensor device of claim 1, wherein the perimeter defined by the plurality of sensor elements is approximately a circle.

14. The touch-sensor device of claim 1, wherein each of the plurality of traces has a length not greater than about one centimeter.

15. The touch-sensor device of claim 1, wherein the substrate comprises a non-conductive substrate, the plurality of sensor elements comprises a plurality of metal sensor elements, and the active electronic component comprises a controller.

16. A method of manufacturing a touch-sensor device, comprising:

disposing a plurality of sensor elements non-linearly upon a substrate, wherein the plurality of sensor elements defines a perimeter;

disposing an active electronic component at least partially within the perimeter upon the substrate; and

disposing a plurality of traces upon the substrate to couple the plurality of sensor elements with the active electronic component.

17. The method of claim 16, further comprising disposing an electrical ground upon the substrate.

18. The method of claim 16, further comprising:

disposing a separate sensor element upon the substrate; and

using a separate trace to couple the separate sensor element with the active electronic component.

19. The method of claim 16, wherein the substrate has an area approximately equal to a size of the perimeter.

20. The method of claim 16, further comprising situating the active electronic component at approximately a center of the perimeter.

21. The method of claim 16, wherein the perimeter defined by the plurality of sensor elements is approximately a circle.