Monolithically integrated multi-sensor device on a semiconductor substrate and method therefor
First Claim
1. An integrated circuit having three or more sensors comprising:
- the integrated circuit comprising;
a first sensor configured to measure a first parameter;
a second sensor configured to measure a second parameter; and
a third sensor configured to measure a third parameter wherein the first, second, and third parameters are different.
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Accused Products
Abstract
An integrated circuit having an indirect sensor and a direct sensor formed on a common semiconductor substrate is disclosed. The direct sensor requires the parameter being measured to be directly applied to the direct sensor. Conversely, the indirect sensor can have the parameter being measured to be indirectly applied to the indirect sensor. The parameter being measured by the direct sensor is different than the parameter being measured by the indirect sensor. In other words, the direct sensor and indirect sensor are of different types. An example of a direct sensor is a pressure sensor. The pressure being measured by the pressure sensor must be applied to the pressure sensor. An example of an indirect sensor is an accelerometer. The rate of change of velocity does not have to be applied directly to the accelerometer. In one embodiment, the direct and indirect sensors are formed using photolithographic techniques.
69 Citations
20 Claims
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1. An integrated circuit having three or more sensors comprising:
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the integrated circuit comprising; a first sensor configured to measure a first parameter; a second sensor configured to measure a second parameter; and a third sensor configured to measure a third parameter wherein the first, second, and third parameters are different. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An integrated circuit having three or more sensors comprising;
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the integrated circuit comprising; a first MEMs sensor; a second MEMs sensor; and a third sensor wherein the first, second, and third sensors each measure a different parameter. - View Dependent Claims (14, 15, 16, 17)
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18. An integrated circuit having a plurality of sensors comprising:
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the integrated circuit comprising; a first MEMs sensor wherein the first MEMs sensor is exposed to an external environment; and a second MEMs sensor wherein the second MEMs sensor is sealed from the external environment and wherein the first and second MEMs sensors measure a different parameter. - View Dependent Claims (19, 20)
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Specification