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US 2011/0252890 A1Published application
Ultrasonic sensor and electronic device
AssigneeSeiko Epson Corporation
InventorHiroshi MATSUDA
Life of this patent
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Abstract
The ultrasonic sensor has a plurality of ultrasonic transducers disposed two-dimensionally on a sensor substrate. The sensor substrate is divided into areas by an X axis and a Y axis which intersect one another in plan view looking at the sensor substrate along the thickness direction. In each of the areas, each of the lower electrode lines which leads out from the lower electrode of each of the ultrasonic transducers has a linear segment which extends in a direction away from the substrate center point where the X axis and Y axis intersect.
Claims18
An ultrasonic sensor comprising:
- a sensor substrate having a plurality of areas divided by at least two hypothetical dividing lines that intersect one another in plan view looking at the sensor substrate in a thickness direction;
- a plurality of ultrasonic transducers disposed two-dimensionally on the sensor substrate, each of the ultrasonic transducers having a first electrode;
- and
- a plurality of first electrode lines having as origins thereof the first electrodes of the ultrasonic transducers, each of the first electrode lines having a linear segment extending, within each of the areas of the sensor substrate, in a direction away from an intersection point between the hypothetical dividing lines.
1 more element
An ultrasonic sensor comprising:
- a sensor substrate;
- a plurality of ultrasonic transducers, each of which having a first electrode and a second electrode and each of which being disposed two-dimensionally on the sensor substrate along a first direction and a second direction intersecting the first direction;
- a common electrode line disposed along the first direction between columns of the ultrasonic transducers;
- a plurality of first electrode lines each having as an origin each of the first electrodes of the ultrasonic transducers;
- and
- a plurality of second electrode lines interconnecting the second electrodes of at least two of the ultrasonic transducers lined up in a direction parallel to the second direction,
- each of the first electrode lines having a linear segment extending in the direction parallel to the second direction and extending in a direction away from the common electrode line, and
- the second electrode lines extending along the second direction and connecting to the common electrode line.
5 more elements
An ultrasonic sensor comprising:
- a sensor substrate;
- a plurality of ultrasonic transducers, each of which having a first electrode and a second electrode, and each of which being disposed two-dimensionally on the sensor substrate along a first direction and a second direction intersecting the first direction;
- a first common electrode line extending in a direction parallel to the first direction, and being disposed between columns of the ultrasonic transducers;
- and
- a second common electrode line extending in a direction parallel to the second direction, being disposed between columns of the ultrasonic transducers, and being connected to the first common electrode line,
- at least one of a plurality of areas partitioned by the first common electrode line and the second common electrode line in plan view serving as a first line pattern area while the remaining area serving as a second line pattern area,
- in the first line pattern area,
- each of a plurality of first electrode lines having as origins thereof the first electrodes of the ultrasonic transducers having a linear segment extending in the direction parallel to the second direction and in a direction away from the first common electrode line, and
- a second electrode line interconnecting the second electrodes of at least two of the ultrasonic transducers that line up in the direction parallel to the second direction extending in the direction parallel to the second direction and being connected to the first common electrode line, and
- in the second line pattern area,
- each of a plurality of first electrode lines having as origins the first electrodes of the ultrasonic transducers having a linear segment extending in the direction parallel to the first direction and in a direction away from the second common electrode line, and
- a second electrode line interconnecting the second electrodes of at least two of the ultrasonic transducers that line up in the direction parallel to the first direction extending in the direction parallel to the first direction and being connected to the second common electrode line.
9 more elements
Dependencies are inferred from the claim text.