Oscillator Packaging with Shared Resonator Devices and Frequency Tuning

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Solution Overview

Problem

Existing methods for manufacturing quartz crystal oscillators in ceramic packages lack efficiency in producing oscillators with different output characteristics, such as oscillation frequency, while maintaining design flexibility and reducing costs.

Innovation Solution

A method for manufacturing oscillators involving resonator devices housed in different types of containers, utilizing semiconductor or glass substrates, and setting characteristic information in storage circuits to adjust oscillation circuit characteristics, allowing for oscillators with identical resonator devices but varying output frequencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a common package is used to house different types of quartz crystal resonator elements and IC chips, then design flexibility is improved, but manufacturing efficiency and cost-effectiveness deteriorate

Engineering Contradiction:
Improvedesign flexibilityVSAvoidmanufacturing efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The invention divides the manufacturing process into two independent stages: (1) preparing resonator devices with identical structures but different characteristic setting information, and (2) housing them in different types of containers. This segmentation allows standardized resonator devices to be mass-produced efficiently while enabling diverse oscillator products through different container types and characteristic configurations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the characteristic setting information stored in the storage circuit of resonator devices to produce different output characteristics (e.g., oscillation frequency) from identical resonator structures. This parameter change approach enables diverse oscillator products without requiring different physical resonator designs, thereby improving manufacturing efficiency while maintaining product diversity.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If different types of containers are used to house resonator devices for producing oscillators with different output characteristics, then manufacturing cost and time increase, but previously it was necessary to change resonator device structures

Engineering Contradiction:
Improvemanufacturing costVSAvoidmanufacturing time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The invention performs preliminary preparation of resonator devices with identical structures and pre-configured characteristic setting information before housing them in different containers. This preliminary action allows the resonator devices to be standardized and mass-produced in advance, eliminating the need for structural modifications during the housing stage, thereby reducing both manufacturing cost and time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention uses identical resonator device structures as templates or copies for different oscillator types. Instead of creating unique resonator structures for each oscillator type, the same resonator device design is copied and configured with different characteristic setting information, then housed in different containers. This copying approach significantly reduces manufacturing complexity, cost, and time.

Inventive Principle:
Principle #26Copying

3Device complexity

If resonator devices with different structures are prepared to achieve different output characteristics, then manufacturing complexity increases, but the patent uses identical resonator devices with different characteristic setting information

Engineering Contradiction:
Improvemanufacturing complexityVSAvoidoutput characteristic diversity
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The invention achieves different output characteristics by changing the characteristic setting information stored in the storage circuit of identical resonator devices, rather than modifying the physical structure of the resonators. This parameter change approach maintains simple, standardized resonator structures while enabling diverse oscillator products through software or configuration-based differentiation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention makes the resonator device structure universal by designing it to work with different characteristic setting information and different container types. A single resonator device design serves multiple functions across different oscillator products, eliminating the need for multiple specialized resonator structures and thereby reducing manufacturing complexity while maintaining product diversity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient and cost-effective production of oscillators with diverse output characteristics by utilizing identical resonator devices in different containers, reducing manufacturing costs and enhancing design flexibility.

Implementation Method 1

a resonator, a first substrate, a second substrate so disposed that the first and second substrates sandwich the resonator

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS12527221B2Oscillator manufacturing method
Publication Date: 2026.01.13 SEIKO EPSON CORP
  • US12527221B2 patent drawing
  • US12527221B2 patent drawing
  • US12527221B2 patent drawing

AI summary

An oscillator manufacturing method is a method for manufacturing a plurality of types of oscillators including a first oscillator and a second oscillator. The method includes preparing a first resonator device and a second resonator device each including a resonator, an oscillation circuit electrically coupled to the resonator, and a storage circuit that stores characteristic setting information used to set the characteristics of the oscillation circuit, housing the first resonator device in a first container to manufacture the first oscillator, housing the second resonator device in a second container different in type from the first container to manufacture the second oscillator, and setting characteristic setting information in the storage circuit, and the first resonator device and the second resonator device are resonator devices of the same type.