Multiple axis transducer with multiple sensing range capability
AssigneeFreescale Semiconductor, Inc.
InventorsGary G. Li, Todd F. Miller, David J. Monk
Life of this patent
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Abstract
A transducer package 20 includes a substrate 32 having a first axis of symmetry 36 and a second axis of symmetry 38 arranged orthogonal to the first axis of symmetry 36. At least a first sensor 50 and a second sensor 52 each of which are symmetrically arranged on the substrate 32 relative to one of the first and second axes of symmetry 36 and 38.The first and second sensors 50 and 52 are adapted to detect movement parallel to the other of the first and second axes of symmetry 36 and 38. The first sensor 50 is adapted to detect movement over a first sensing range and the second sensor 52 is adapted to detect movement over a second sensing range, the second sensing range differing from the first sensing range.
Claims17
A transducer package comprising:
- a substrate exhibiting a first axis of symmetry and a second axis of symmetry arranged orthogonal to said first axis of symmetry;
- a first sensor adapted to detect movement of said transducer package over a first acceleration g level range;
- and
- a second sensor adapted to detect said movement of said transducer package over a second acceleration g level range, said second acceleration g level range differing from said first acceleration g level range, each of said first and second sensors being symmetrically arranged on said substrate centered on one of said first and second axes of symmetry and adapted to detect said movement in a direction that is substantially parallel to another of said first and second axes of symmetry.
A method of producing a transducer package comprising:
- providing a substrate exhibiting a first axis of symmetry and a second axis of symmetry arranged orthogonal to said first axis of symmetry;
- configuring a first sensor to detect movement of said transducer package over a first acceleration g level range;
- and
- configuring a second sensor to detect said movement of said transducer package over a second acceleration g level range, said second acceleration g level range differing from said first acceleration g level range;
- symmetrically arranging said first sensor on said substrate centered on said second axis of symmetry, said first sensor being adapted to detect said movement in a direction that is substantially parallel to said first axis of symmetry;
- and
- symmetrically arranging said second sensor on said substrate centered on said first axis of symmetry, said second sensor being adapted to detect said movement in said direction that is substantially parallel to said second axis of symmetry.
A transducer package comprising:
- a substrate having a planar surface and exhibiting a first axis of symmetry and a second axis of symmetry arranged orthogonal to said first axis of symmetry, said first and second axes of symmetry being substantially parallel to said planar surface, and said planar surface being balanced at an intersection of said first and second axes of symmetry;
- a first sensor adapted to detect movement of said transducer package over a first acceleration g level range;
- and
- a second sensor adapted to detect said movement of said transducer package over a second acceleration g level range, said acceleration g level range differing from said first acceleration g level range, each of said first and second sensors being symmetrically arranged on said substrate centered on one of said first and second axes of symmetry and adapted to detect movement of said transducer package in a direction that is substantially parallel to another of said first and second axes of symmetry.
Dependencies are inferred from the claim text.