Electronic device and method for manufacturing induction electrode assembly

Abstract

An electronic device includes a housing and a diaphragm. The diaphragm is disposed on the housing and includes a perforated region, wherein the perforated region has an array of holes and a plurality of conductive elements filling the holes, the conductive elements collectively forming a sensing electrode assembly.

Claims

1. An electronic device comprising: A shell; A diaphragm is disposed on the housing and includes a perforated area, wherein the perforated area has a plurality of holes arranged in an array and a plurality of conductive elements filling the holes, the conductive elements together forming a sensing electrode assembly; and an ink layer is located between the diaphragm and the housing, wherein the ink layer includes a conductive ink area, the conductive ink area being electrically connected to the conductive elements.

2. The electronic device as claimed in claim 1 further includes a sensing module disposed within the housing and electrically connected to the conductive elements within the holes.

3. The electronic device as claimed in claim 1, wherein the ink layer includes an appearance ink area other than the conductive ink area.

4. The electronic device as claimed in claim 1 further includes an internal electrode electrically connected to the conductive elements, wherein the internal electrode is integral with the housing.

5. The electronic device as claimed in claim 1, wherein the size of each of the holes is between 100 micrometers and 200 micrometers.

6. The electronic device as claimed in claim 1, wherein the apertures have the same diameter and the spacing between any two adjacent apertures is the same.

7. The electronic device of claim 1, wherein the spacing between two adjacent holes located at the center of the hole region is less than the spacing between two adjacent holes located at the edge of the hole region, and the diameter of each of the two adjacent holes located at the center of the hole region is greater than the diameter of each of the two adjacent holes located at the edge of the hole region.

8. A method for manufacturing a sensing electrode assembly, comprising: Provide a membrane; Print an ink layer onto a first surface of the film, wherein the ink layer includes a conductive ink region; form an array of holes on the film; fill the holes with a plurality of conductive elements to form a sensing electrode assembly, wherein the conductive elements are electrically connected to the conductive ink region; and dispose the film on which the sensing electrode assembly is formed to a housing.

9. A method for manufacturing a sensing electrode assembly as claimed in claim 8, wherein the ink layer includes an appearance ink area other than the conductive ink area.

10. The method of manufacturing the sensing electrode assembly as claimed in claim 8, wherein the process of forming the array of holes on the diaphragm further includes: Orient the second side of the diaphragm toward a laser head; And using the laser head to form an array of holes on the membrane, wherein the size of each of the holes is between 100 micrometers and 200 micrometers.

11. The method of manufacturing the sensing electrode assembly as claimed in claim 8, wherein the step of filling the conductive elements into the holes further includes: The conductive elements are filled into the cavities by physical vapor deposition (PVD) or pulsed laser deposition (PLD), and the materials of the conductive elements include titanium, titanium nitride, gold, diamond-like carbon (DLC), or conductive polymer (PEDOT).

12. The method of manufacturing a sensing electrode assembly as claimed in claim 8, further comprising, prior to the step of disposing the diaphragm on which the sensing electrode assembly is formed to the housing: An internal electrode is integrated with the housing by embedding and ejecting, and after the step of setting the diaphragm on which the sensing electrode assembly is formed to the housing, the sensing electrode assembly is electrically connected to the internal electrode.

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