Method of manufacturing a temperature compensated oscillator
First Claim
1. A method of manufacturing a temperature compensated oscillator comprising the steps of:
- assembling an oscillator in which an IC chip constituting a temperature compensation circuit with an oscillation circuit and a compensation data storage circuit, and a resonator for said oscillation circuit are mounted in a package,adjusting said resonator so that an oscillation frequency of said oscillation circuit becomes a desired oscillation frequency in condition that a temperature compensation function of said temperature compensation circuit is disabled, said oscillator is kept at a reference temperature, and said resonator and said IC chip are mounted in the package,sealing said resonator hermetically after said step of adjusting said resonator,creating temperature compensation data and storing it into said compensation data storage circuit, andenabling said temperature compensation function of said temperature compensation circuit in condition that the temperature compensation data is stored in said compensation data storage circuit.
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Accused Products
Abstract
A method of manufacturing a temperature compensated oscillator including the steps of assembling an oscillator in which an IC chip constituting a temperature compensation circuit with an oscillation circuit and a compensation data storage circuit, and a resonator for the oscillation circuit are mounted in a package; adjusting the resonator with an oscillation frequency of the oscillation circuit to a desired oscillation frequency in condition that the oscillator is kept at a reference temperature, in condition that a temperature compensation function of the temperature compensation circuit is disabled; sealing the resonator hermetically; creating temperature compensation data and storing it into the compensation data storage circuit; and enabling the temperature compensation function of the temperature compensation circuit.
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Citations
9 Claims
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1. A method of manufacturing a temperature compensated oscillator comprising the steps of:
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assembling an oscillator in which an IC chip constituting a temperature compensation circuit with an oscillation circuit and a compensation data storage circuit, and a resonator for said oscillation circuit are mounted in a package, adjusting said resonator so that an oscillation frequency of said oscillation circuit becomes a desired oscillation frequency in condition that a temperature compensation function of said temperature compensation circuit is disabled, said oscillator is kept at a reference temperature, and said resonator and said IC chip are mounted in the package, sealing said resonator hermetically after said step of adjusting said resonator, creating temperature compensation data and storing it into said compensation data storage circuit, and enabling said temperature compensation function of said temperature compensation circuit in condition that the temperature compensation data is stored in said compensation data storage circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification