Keyboard assemblies having reduced thickness and method of forming keyboard assemblies
First Claim
1. An electronic device comprising:
- a casing; and
a keyboard assembly housed at least partially within the casing, the keyboard assembly comprising;
a printed circuit board (PCB) positioned within the casing;
a membrane layer attached to the PCB;
a switch housing affixed directly to the membrane layer or to the PCB; and
a dome switch coupled directly to the membrane layer.
1 Assignment
0 Petitions
Accused Products
Abstract
Keyboard assemblies having reduced thicknesses and methods of forming the same. A keyboard assembly may include a printed circuit board (PCB) and a single membrane sheet adhered directly to the PCB. The single membrane sheet may substantially cover the PCB. The keyboard assembly may also include a group of dome switches coupled directly to the single membrane sheet. Another keyboard assembly may include a group of conductive pads and a group of membrane pads. Each of the group of membrane pads may be adhered directly to a corresponding one of the group of conductive pads. The keyboard assembly may also include a group of dome switches coupled directly to the membrane pads. Each of the group of dome switches may be coupled directly to a corresponding one of the group of membrane pads.
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Citations
17 Claims
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1. An electronic device comprising:
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a casing; and a keyboard assembly housed at least partially within the casing, the keyboard assembly comprising; a printed circuit board (PCB) positioned within the casing; a membrane layer attached to the PCB; a switch housing affixed directly to the membrane layer or to the PCB; and a dome switch coupled directly to the membrane layer. - View Dependent Claims (2, 3, 4, 5)
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6. A keyboard assembly comprising:
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a printed circuit board (PCB); a single membrane sheet substantially covering the PCB; a conductive adhesive bonding the single membrane sheet to the PCB; and a group of dome switches attached to the single membrane sheet, wherein the single membrane sheet comprises an electrical contact in electrical communication with the PCB. - View Dependent Claims (7, 8, 9, 10)
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11. A keyboard assembly comprising:
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a printed circuit board (PCB) including a group of conductive pads; a group of membrane pads, each of the group of membrane pads including a conductive spacer that is adhered directly to a corresponding one of the group of conductive pads; and a group of dome switches, each of the group of dome switches coupled directly to a corresponding one of the group of membrane pads. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification