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US 12,701,364 B2Granted
Multi-layer board actuator having a planar magnet and voice coil
AssigneeApple Inc.
InventorsStuart M. Nevill, Minghe Liu, Justin D. Crosby, David S. Wilkes, Jr.
Life of this patent
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Abstract
An actuator assembly comprising: a multi-layer board comprising a first side and a second side defining an actuation region having a thickness that is reduced relative to a remainder of the multi-layer board; a planar voice coil formed by a trace on at least one of the first side or the second side defining the actuation region; and a polarized magnet array having a magnetic field aligned to the planar voice coil to actuate the actuation region upon application of a voltage to the planar voice coil.
Claims20
An actuator assembly comprising:
- a multi-layer printed circuit board comprising a first side and a second side defining an actuation region having a first thickness that is reduced relative to a second thickness of the multi-layer printed circuit board;
- a planar voice coil formed by a trace on at least one of the first side or the second side of the multi-layer printed circuit board defining the actuation region;
- and
- a polarized magnet array having a magnetic field aligned to the planar voice coil to actuate the actuation region upon application of a voltage to the planar voice coil.
1 more element
An electronic device comprising:
- a device housing;
- a multi-layer printed circuit board coupled to the device housing, the multi-layer printed circuit board comprising a number of material layers and an actuation region formed by less than all of the number of material layers;
- a planar voice coil formed in the actuation region by a conductive trace of at least one of the number of material layers of the multi-layer printed circuit board;
- a magnet array having a magnetic field aligned to the planar voice coil to actuate the actuation region upon application of a voltage to the planar voice coil;
- and
- a circuit coupled to the planar voice coil to apply the voltage to the planar voice coil.
3 more elements
Dependencies are inferred from the claim text.