X-ray detector carrier unit with protective element

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Solution Overview

Problem

When using organic substrates or multi-layer circuit boards in X-ray detectors, the underfill material penetrates into the side faces and layers, causing wetting issues and making it difficult to clean, which can lead to displacement onto tools and affect the integrity of the detector.

Innovation Solution

A protective element is formed on the side faces of the carrier unit, extending along the entire outer circumference and edges, to prevent wetting and penetration of the underfill material, allowing for the use of multi-layer circuit boards while maintaining the stability and integrity of the X-ray detector.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If organic substrates or multi-layer circuit boards are used as carrier units, then cost-effective production is achieved, but underfill material penetrates into the side faces and layers causing wetting issues

Engineering Contradiction:
Improvecost-effective productionVSAvoidintegrity of detector
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent divides the carrier unit into distinct functional regions by introducing a protective element that segments the side faces. This segmentation prevents the underfill material from penetrating into the internal layers while allowing the carrier unit to maintain its cost-effective organic substrate construction. The protective element creates a barrier that separates the underfill application zone from the carrier unit's internal structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The protective element acts as an intermediary barrier between the underfill material and the carrier unit's side faces. This intermediary component prevents direct contact and penetration of the underfill material into the organic substrate or multi-layer circuit board, thereby resolving the wetting issue while allowing the use of cost-effective carrier units.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If underfill material is applied to fill interspace, then stability is improved, but penetration into carrier unit causes warping and distortion

Engineering Contradiction:
ImprovestabilityVSAvoidwarping and distortion
Core Design Contradiction:
Stability of the object's compositionVSShape

Solution Approach 1:

The protective element is formed on the side faces of the carrier unit before the underfill material is applied. This preliminary action prevents the underfill material from penetrating into the carrier unit during the subsequent underfilling process, thereby avoiding warping and distortion while still achieving the stability benefits of underfill application.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If side faces of carrier unit are exposed, then underfill material can be applied, but penetration and wetting make cleaning difficult

Engineering Contradiction:
Improveunderfill applicationVSAvoidcleaning difficulty
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The patent converts the potential harm of underfill material penetration into a benefit by using the protective element to contain the underfill material within the interspace. The protective element prevents the underfill from spreading onto the carrier unit's side faces, thereby eliminating cleaning difficulties while maintaining ease of underfill application.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentUS10890673B2X-ray detector having a carrier element with protective element along the side faces
Publication Date: 2021.01.12 SIEMENS HEALTHINEERS AG
  • US10890673B2 patent drawing
  • US10890673B2 patent drawing
  • US10890673B2 patent drawing

AI summary

An X-ray detector, including a stacking arrangement, includes an evaluation unit and a carrier unit. The evaluation unit and the carrier unit are electrically conductively connected via a plurality of connecting elements. An interspace is formed between the evaluation unit, the carrier unit and the plurality of connecting elements. A protective element is formed on side faces of the carrier unit, arranged essentially parallel to a stacking direction of the stacking arrangement. The protective element is formed in at least one section of the side faces along the entire outer circumference and along the edges of the side faces, facing the evaluation unit.