Localized Probe Testing for Brittle Ceramic Components
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Solution Overview
Problem
Conventional material testing methods for ceramic components in electronic devices, such as bending tests, apply global stress and are less accurate, failing to differentiate between strong and weak areas and often misidentifying the location of material flaws, leading to premature failure.
Innovation Solution
A method and system for proof testing brittle components using a probe to apply localized tensile bands at specific locations on the component, varying forces to create compressed regions and tensile bands, allowing for precise identification of material flaws and ensuring the component meets quality and strength standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a bending test is used to test ceramic material, then the test can be performed on the entire material, but the results are less accurate and cannot differentiate between strong and weak areas
Solution Approach 1:
The patent divides the testing approach by applying localized forces at specific positions rather than global bending. The probe applies force at discrete locations to create localized tensile bands, segmenting the stress application to identify specific flaw locations accurately.
Solution Approach 2:
The patent implements local quality by creating localized tensile bands at specific positions on the ceramic component. Instead of uniform global stress, the testing method applies stress locally to different regions to assess each area's strength characteristics and identify position-specific material flaws.
2Measurement precision
If global stress is applied during bending test, then the entire material is tested, but the location of material flaws cannot be accurately identified
Solution Approach 1:
The testing method segments the force application by using a probe to apply localized forces at specific positions rather than applying global stress through bending. This segmentation allows precise identification of which local region contains material flaws.
Solution Approach 2:
The patent transitions from one-dimensional global bending stress to a multi-dimensional approach by applying localized forces at multiple discrete positions across the surface. This dimensional change enables spatial mapping of material strength and flaw locations.
3Reliability
If conventional bending test is used, then the testing process is simple, but premature failure occurs due to reduced strength areas
Solution Approach 1:
The patent applies preliminary action by conducting localized strength testing at multiple positions before final component assembly or use. This preliminary assessment identifies weak areas that would lead to premature failure, allowing corrective action before the component enters service.
Solution Approach 2:
The testing method skips the inadequate global bending approach and directly applies localized probing at critical positions. This rushing through the essential testing steps at key locations provides reliable strength assessment without the premature failure issues of conventional bending tests.
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
This approach accurately assesses the strength and quality of ceramic components by selectively applying forces to unique locations, preventing premature failure and ensuring the components meet the necessary standards for electronic devices.
Implementation Method 1
applying a first force at the first location using the probe to create a first localized tensile band below the surface of the brittle component
Data Source
AI summary
Methods and a system for proof testing brittle components of electronic devices are disclosed. The method may include positioning the brittle component relative to a probe of a testing system, contacting the probe to a surface of the brittle component at a first location, and applying a first force at the first location using the probe to create a first localized tensile band below the surface of the brittle component. The method may also include contacting the probe to the surface of the brittle component at a second location, distinct from the first location, and applying a second force at the second location using the probe to create a second localized tensile band below the surface of the brittle component.