Multilayer Component Contact Connection via Photosensitive Structuring
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Solution Overview
Problem
Existing methods for producing electric contact-connections in multilayer components, such as piezoactuators, face challenges in ensuring accurate and reliable insulation and conductive material placement, leading to risks of short circuits and incorrect contact-connections due to production tolerances and varying distances between internal electrode layers.
Innovation Solution
A method involving the use of a photosensitive material to structurally arrange insulating and conductive materials on the outer side of the multilayer component, with insulation webs wider than the distance between electrode layers to ensure reliable insulation and prevent short circuits, and the application of external electrodes for alternate contact-connection of internal electrode layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used for producing electric contact-connections, then production process is simpler, but manufacturing precision and reliability deteriorate due to production tolerances and varying distances between internal electrode layers
Solution Approach 1:
The method applies insulating and conductive materials in advance during the manufacturing process, before final assembly, using a photosensitive material as a mask to ensure precise placement. This preliminary structuring of materials eliminates the need for complex post-adjustment procedures and ensures accurate contact-connections despite production tolerances
Solution Approach 2:
A photosensitive material is introduced as an intermediary mask to control the placement of insulating and conductive materials. This intermediary layer enables precise patterning and positioning, ensuring that materials are applied only where needed, thereby achieving high manufacturing precision without significantly complicating the overall process
2Reliability
If insulation webs are made wider to ensure reliable insulation, then reliability improves, but manufacturing precision requirements increase
Solution Approach 1:
The insulating material is applied with sufficient width in advance during the manufacturing process, ensuring that it extends beyond the electrode layers to provide reliable insulation. This preliminary application with built-in tolerance compensation eliminates the need for precise post-positioning and ensures reliable insulation despite variations in electrode layer spacing
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 ensures reliable insulation and contact-connection of internal electrode layers, reducing the risk of short circuits and incorrect contact-connections, thereby enhancing the operational reliability of multilayer components like piezoactuators.
Implementation Method 1
The structured arrangement is produced by a photosensitive material
Implementation Method 2
when a voltage is applied to the internal electrode layers, piezoelectric layers arranged between the internal electrode layers expand, such that a stroke of the piezoactuator is generated
Data Source
AI summary
A method for producing an electric contact-connection of a multilayer component is disclosed. In an embodiment, the method includes providing a main body of the multilayer component having internal electrode layers, applying an electrically conductive material and applying a photosensitive material on the electrically conductive material. The method further includes structuring the electrically conductive material via the photosensitive material such that the internal electrode layers alternatingly are covered and uncovered by the electrically conductive material and applying an insulating material after structuring the electrically conductive material such that the internal electrode layers are alternatingly covered by the electrically conductive material and by the insulating material.