Semiconductor Vibrator Package Layout for Reduced Mounting Area

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Solution Overview

Problem

Existing microcontroller designs require a large mounting area due to separate placement of USB control sections and vibrators, making it difficult to reduce the size of the device.

Innovation Solution

A vibrator device with a package that includes a semiconductor base and lid housing a vibrator element, passive elements, and an oscillation circuit, where the integrated circuit is formed on the base and electrically coupled to the passive elements, allowing for reduced mounting area and size by stacking components in the Z-axis direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the USB control section and vibrator are separately mounted on a mounting substrate, then the device can be manufactured with conventional processes, but the mounting area becomes large and the device size cannot be reduced

Engineering Contradiction:
ImprovemanufacturabilityVSAvoidmounting area
Core Design Contradiction:
Ease of manufactureVSArea of stationary object

Solution Approach 1:

The patent merges the USB control section and vibrator into a single integrated device. The control section includes an oscillation circuit that directly drives the vibrator element, eliminating the need for separate mounting. This integration combines multiple functions (oscillation generation, signal processing, and vibration actuation) into one compact unit, thereby reducing the mounting area while maintaining manufacturability through standard semiconductor fabrication processes.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from a planar two-dimensional layout to a three-dimensional integrated structure. By stacking functional layers vertically within the control section and directly coupling the vibrator element to the oscillation circuit, the design utilizes the Z-axis dimension to reduce the footprint on the mounting substrate. This dimensional transition allows compact integration without compromising manufacturing feasibility.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of repair

If the USB control section and vibrator are separately mounted, then component replacement and repair are easier, but the overall device size increases

Engineering Contradiction:
Improvecomponent replaceabilityVSAvoiddevice volume
Core Design Contradiction:
Ease of repairVSVolume of moving object

Solution Approach 1:

The patent segments the integrated device into functional modules that can be independently designed and manufactured. The control section is structured with distinct functional blocks (oscillation circuit, signal processing circuits) that can be selectively replaced or updated without affecting the entire device. This modular segmentation within the integrated architecture maintains ease of repair while achieving compact size.

Inventive Principle:
Principle #1Segmentation

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

The solution effectively reduces the size of the device, stabilizes the integrated circuit operation by shortening wiring lines, and improves vibration characteristics and noise suppression, while maintaining precision manufacturing.

Implementation Method 1

a vibrator element (4) and a plurality of passive elements (5), which are housed in the housing section S

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS12171146B2Vibrator device
Publication Date: 2024.12.17 SEIKO EPSON CORP
  • US12171146B2 patent drawing
  • US12171146B2 patent drawing
  • US12171146B2 patent drawing

AI summary

A vibrator device includes a package including a base that is a semiconductor substrate and a lid that is a semiconductor substrate and has a housing section, a vibrator element and a passive element housed in the housing section and placed at the base, an oscillation circuit placed at the base and electrically coupled to the vibrator element, and a circuit that is placed at the base or the lid, is electrically coupled to the passive element, and operates based on an oscillation signal from the oscillation circuit.