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US 7,248,459 B2Granted
Integrated multi-capacitor network
OwnerMansoor Mike Azodiinventor
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Abstract
A novel multi-capacitor divider network in which two capacitors are fabricated in a single package, using a common dielectric material, is disclosed. In a preferred embodiment of the present invention, the multi-capacitor network comprises a high-voltage capacitor and a low-voltage capacitor fabricated in a single monolithic package, both fabricated from a class one dielectric material having a combined tolerance of plus or minus five percent. The use of the same class one dielectric material for both capacitors assures that the temperature coefficents are similar for both capacitors and, more importantly, that the tolerance of the ratio between the high-voltage capacitor and low-voltage capacitor is within a predetermined range.
Claims20
A capacitor network comprising:
- a first capacitor, said first capacitor having a first temperature coefficient and a first nominal capacitance, said first nominal capacitance value having a first tolerance range, and said first nominal capacitance value independently determined;
- a second capacitor, said second capacitor having a second temperature coefficient and a second nominal capacitance, said second nominal capacitance value having a second tolerance range, and said second nominal capacitance value determined by a design ratio between said first nominal capacitance value and said second nominal capacitance value;
- said first capacitor and said second capacitor fabricated in a single package using a common dielectric material;
- whereby said design ratio has a predetermined tolerance range that is independent of said first and second tolerance ranges and said first and second temperature coefficients.
1 more element
A capacitor network comprising:
- a first capacitor, said first capacitor having a first temperature coefficient and a first nominal capacitance value having a first tolerance range, said first nominal capacitance value independently determined, said first capacitor further comprising a first plurality of parallel electrodes, each of said first plurality of parallel electrodes separated by said common dielectric material;
- a second capacitor, said second capacitor having a second temperature coefficient and a second nominal capacitance value having a second tolerance range, said second nominal capacitance value determined by a design ratio between said first nominal capacitance value and said second nominal capacitance value, said second capacitor further comprising a second plurality of parallel electrodes, each of second plurality of parallel electrodes separated by said common dielectric material;
- said first capacitor and said second capacitor fabricated in a single package using a common dielectric material, said common dielectric material further said common dielectric material comprises a class one dielectric material comprising a class one dielectric material;
- whereby said design ratio has a predetermined tolerance range that is independent of said first and second tolerance ranges and said first and second temperature coefficients.
1 more element
A capacitor network comprising:
- a first capacitor, said first capacitor having a first temperature coefficient and a first nominal capacitance value having a first tolerance range, said first nominal capacitance value independently determined, said first capacitor further comprising a first plurality of parallel electrodes, each of said first plurality of parallel electrodes separated by said common dielectric material, said first tolerance range further comprises a first lower limit and a first upper limit, said first nominal capacitance value between said first lower limit and said first upper limit, and said first lower limit and said first upper limit measured as a percentage of said first nominal capacitance value;
- a second capacitor, said second capacitor having a second temperature coefficient and a second nominal capacitance value having a second tolerance range, said second nominal capacitance value determined by a design ratio between said first nominal capacitance value and said second nominal capacitance value, said second capacitor further comprising a second plurality of parallel electrodes, each of second plurality of parallel electrodes separated by said common dielectric material, further comprises a second lower limit and a second upper limit, said second nominal capacitance value between said second lower limit and said second upper limit, and said second lower limit and said second upper limit measured as a percentage of said second nominal capacitance value;
- said first capacitor and said second capacitor fabricated in a single package using a common dielectric material, said common dielectric material further said common dielectric material comprises a class one dielectric material comprising a class one dielectric material;
- whereby said design ratio has a predetermined tolerance range that is independent of said first and second tolerance ranges and said first and second temperature coefficients.
1 more element
Dependencies are inferred from the claim text.