Semiconductor Pictogram Display via Integrated Mirror Layer
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Solution Overview
Problem
Conventional methods for displaying pictograms require a mask and optics, resulting in a non-compact design and inefficient production processes.
Innovation Solution
An optoelectronic semiconductor chip with a carrier and a mirror layer integrated between the semiconductor body, where the semiconductor body's active layer generates light, and the mirror layer defines the contour of the pictogram, allowing for a compact design without a mask, using the semiconductor body's surface to illuminate and represent the pictogram.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a mask and optics are used to display a pictogram, then the pictogram can be displayed, but the design becomes non-compact and the production process becomes inefficient
Solution Approach 1:
The patent merges the mask function directly into the semiconductor body by structuring the semiconductor material itself to form the pictogram pattern. The mirror layer is integrated between the semiconductor body and carrier, combining multiple functions (light reflection, structural support, electrical connection) into a single integrated component, thereby eliminating the need for separate masks and optics while achieving compact design
Solution Approach 2:
The patent extracts and eliminates the separate mask component from the system by directly forming the pictogram pattern within the semiconductor body structure. The mask function is completely removed and replaced by the structured semiconductor material, simplifying the overall device design and reducing component count
2Productivity
If the semiconductor body is structured at wafer level with mirror layer having same outer contours, then production efficiency is improved, but the component outline must differ from pictogram contour
Solution Approach 1:
The patent segments the semiconductor body into different functional regions with different contour requirements. The wafer-level structured regions (semiconductor body and mirror layer) share the same outer contours for efficient production, while the final component outline is defined by additional structural elements (carrier, contact structures, encapsulation) that differ from the pictogram contour, allowing both production efficiency and design flexibility
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
Enables a compact and efficient display of pictograms with high contrast and sharp representation, eliminating the need for additional masks and optimizing production through integrated design and materials like silver for high reflectance.
Implementation Method 1
the semiconductor body includes an active layer configured to generate light during operation of the component
Implementation Method 2
a mirror layer located therebetween... the pictogram has a contour at least partially defined by a contour of the mirror layer
Data Source
AI summary
A component includes a carrier, a semiconductor body and a mirror layer located therebetween, wherein the semiconductor body includes an active layer configured to generate light during operation of the component, the component has a main surface that illuminates during operation, wherein luminous areas of the main surface represent visually detectable information as a pictogram, in a plan view of the main surface, the pictogram has a contour at least partially defined by a contour of the mirror layer, and in a plan view of the main surface, the component has an outline different from the contour of the pictogram.