Surface acoustic wave device and method of adjusting LC component of surface acoustic wave device
First Claim
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1. A device, comprising:
- at least one electrode pad electrically connected to at least one inter-digital transducer attached to a piezoelectric substrate; and
at least one stud bump disposed on the at least one electrode pad, wherein a position of the at least one stud bump on the at least one electrode pad causes a product of an inductance and a capacitance of the device to have a predetermined value, andwherein the at least one electrode pad has a first wiring pattern and a second wiring pattern connected together at a common end, and the at least one stud bump is disposed on the at least one electrode pad to electrically short-circuit the first wiring pattern and the second wiring pattern.
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Abstract
A surface acoustic wave device comprises a piezoelectric substrate (1), at least one inter-digital transducers (IDT) (2) provided on the piezoelectric substrate, at least one elongated electrode pad (4) electrically connected to the IDT, and at least one stud bump (5) disposed on the electrode pad such that an LC component of the surface acoustic wave device has a predetermined value.
14 Citations
14 Claims
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1. A device, comprising:
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at least one electrode pad electrically connected to at least one inter-digital transducer attached to a piezoelectric substrate; and at least one stud bump disposed on the at least one electrode pad, wherein a position of the at least one stud bump on the at least one electrode pad causes a product of an inductance and a capacitance of the device to have a predetermined value, and wherein the at least one electrode pad has a first wiring pattern and a second wiring pattern connected together at a common end, and the at least one stud bump is disposed on the at least one electrode pad to electrically short-circuit the first wiring pattern and the second wiring pattern. - View Dependent Claims (2, 3, 4, 5)
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6. A method, comprising:
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determining a position, on at least one electrode pad having a first wiring pattern and a second wiring pattern connected together at a common end, at which placement of at least one stud bump causes a function of an inductance and a capacitance of a surface acoustic wave device to have a predetermined value; and disposing the at least one stud bump at the position on the at least one electrode pad, wherein the disposing electrically short-circuits the first wiring pattern and the second wiring pattern. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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means for converting between a surface acoustic wave and an electrical signal, wherein the means for converting is connected to at least one electrode pad having a first wiring pattern and a second wiring pattern connected together at a common end; and means for positioning at least one stud bump on the electrode pad, wherein a position of the at least one stud bump on the at least one electrode pad causes a value based on an inductance and a capacitance of the apparatus to converge on a predetermined value, and wherein the at least one stud bump electrically short-circuits the first wiring pattern and the second wiring pattern. - View Dependent Claims (14)
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Specification