Image Sensor Assembly With Segmented Covers for Clean Manufacturing

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Solution Overview

Problem

Existing image sensor devices face challenges in reducing the risks of damage and contamination during manufacturing, particularly due to handling issues with long translucent covers and complex positioning structures.

Innovation Solution

The image sensor device features a substrate with sensor units arranged in a linear fashion, each including a pixel chip covered by a short translucent plate and a spacer, with a positioning structure using pins, bolts, and nuts for precise alignment and secure mounting, reducing the risk of damage and contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a long translucent cover is used to cover multiple pixel chips, then the manufacturing process can be simplified, but the risk of damage and contamination to components increases

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidcomponent damage and contamination risk
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent divides the single long translucent cover into multiple short translucent covers, each covering individual pixel chips. This segmentation reduces the handling complexity and damage risk while maintaining the protective function across all chips.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces spacers as intermediary components between the pixel chips and translucent covers. These spacers facilitate precise positioning and secure mounting, reducing handling risks during assembly while enabling simplified manufacturing processes.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If a complex positioning structure is used to align substrate and sensor units, then positioning precision is improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvepositioning precisionVSAvoidpositioning structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The positioning structure utilizes the pixel chip itself as a positioning reference, eliminating the need for separate complex positioning mechanisms. The pixel chip's inherent features guide the alignment of the translucent cover and mounting substrate, achieving high positioning precision with minimal additional components.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The spacers serve as intermediary positioning elements that bridge the pixel chips and mounting substrates. These spacers provide precise spacing and alignment references, enabling accurate positioning without requiring complex positioning structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If pixel chips are tightly mounted to substrate, then structural stability is improved, but thermal expansion mismatch causes deformation and peeling

Engineering Contradiction:
Improvestructural stabilityVSAvoiddeformation and peeling resistance
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent pre-designs the mounting structure with intentional spacing between pixel chips and mounting substrates using spacers. This preliminary spacing accommodation allows for thermal expansion differences without causing deformation or peeling, while maintaining structural stability through secure mounting at designated points.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the mounting parameters by introducing controlled spacing through spacers rather than tight mounting. This parameter adjustment accommodates thermal expansion coefficients differences between materials, preventing deformation and peeling while maintaining overall structural stability.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250022893A1Image sensor device, equipment, and method of manufacturing image sensor device
Publication Date: 2025.01.16 SONY SEMICON SOLUTIONS CORP
  • US20250022893A1 patent drawing
  • US20250022893A1 patent drawing
  • US20250022893A1 patent drawing

AI summary

It is a main object to provide an image sensor device that can reduce the risks of damage to and/or contamination of its components during manufacturing. The image sensor device according to the present technology is an image sensor device including a substrate and a plurality of sensor units arranged in at least one axis direction on the substrate. Each of the plurality of sensor units includes a pixel chip including a plurality of pixels, and a translucent cover configured to cover the pixel chip. With the image sensor device according to the present technology, there can be provided an image sensor device that can reduce the risks of damage to and/or contamination of its components during manufacturing.