Capacitor structure and fabrication process
First Claim
1. A capacitor structure comprising two substrates (1) each having a capacitor electrode (3) deposited on a surface, the substrates (1) being joined together by bump structures located on both sides of the capacitor electrodes (3) such that the capacitor electrodes (3) lie opposite each other separated by a distance d and form a capacitor, the distance d between the capacitor electrodes (3) being defined by the structures, and measuring connections (5) being provided on one of the substrates (1) for making capacitance measurements, each of the bump structures including two tapered bumps (4) formed on the substrates, which have been compressed to provide the distance d.
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Accused Products
Abstract
The invention relates to a capacitor structure with two substrates (1) each having a capacitor electrode (3) deposited on its surface, the substrates (1) being joined together by bump structures located on both sides of the capacitor electrodes (3) such that the capacitor electrodes (3) lie opposite each other and form a capacitor, the distance d between the capacitor electrodes (3) being defined by the height of the bump structures, and measuring connections (5) being provided on one of the substrates (1) for making capacitance measurements.
14 Citations
13 Claims
- 1. A capacitor structure comprising two substrates (1) each having a capacitor electrode (3) deposited on a surface, the substrates (1) being joined together by bump structures located on both sides of the capacitor electrodes (3) such that the capacitor electrodes (3) lie opposite each other separated by a distance d and form a capacitor, the distance d between the capacitor electrodes (3) being defined by the structures, and measuring connections (5) being provided on one of the substrates (1) for making capacitance measurements, each of the bump structures including two tapered bumps (4) formed on the substrates, which have been compressed to provide the distance d.
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6. A capacitor device comprising:
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first and second capacitor electrodes; and
,deformable bump structures formed adjacent to said capacitor electrodes for spacing said first and second capacitor electrodes apart a given distance, each of the bump structures including two tapered bumps (4), which have been compressed to provide the given distance;
wherein said given distance is a function of a desired capacitance of said device. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification