Semiconductor Spacer for Compact Illuminating Device
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Solution Overview
Problem
The challenge in producing compact illuminating devices, such as those for hand-held electronic equipment, lies in precisely positioning light sources and light guides to avoid bright regions and color aberrations at the edges of light guides, which is complex and costly.
Innovation Solution
A semiconductor device with a radiation exit face and a spacer projecting vertically from the exit face, allowing for a controlled distance between the exit face and adjacent optical elements like light guides, ensuring efficient radiation coupling while preventing excessive brightness and color aberrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the light source and light guide are arranged as close together as possible, then compact design and good light incoupling are achieved, but bright regions and color aberrations occur at the edge of the light guide
Solution Approach 1:
The patent introduces a spacer as an intermediary element between the light source and light guide. This spacer maintains a precise gap that prevents direct contact, thereby avoiding bright regions and color aberrations at the light guide edges while still enabling compact arrangement and efficient light coupling
2Object-affected harmful factors
If precise positioning of light source and light guide is implemented, then bright regions and color aberrations are avoided, but production complexity and cost increase
Solution Approach 1:
The spacer is pre-integrated onto the light source during the semiconductor manufacturing process before final assembly. This preliminary action establishes the correct positioning geometry in advance, eliminating the need for complex post-assembly positioning adjustments and reducing production complexity
3Use of energy by moving object
If the light source emission surface directly contacts the light guide, then good light incoupling is achieved, but bright regions and color aberrations occur at the edge
Solution Approach 1:
The spacer acts as a controlled intermediary that maintains an optimal gap between the light source emission surface and light guide. This gap prevents harmful direct contact effects while preserving efficient light coupling through controlled proximity
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 solution simplifies the production of compact illuminating devices by maintaining a consistent distance between the radiation exit face and light guides, preventing radiation coupling at large angles and thus avoiding bright edges and color aberrations, while allowing for efficient luminous flux and compact design.
Implementation Method 1
a semiconductor chip (2) including an active region (20) provided to generate radiation
Implementation Method 2
a spacer (3) projecting beyond the radiation exit face (10) in a vertical direction (v) extending perpendicular to the radiation exit face (10)
Data Source
AI summary
A semiconductor device includes a semiconductor chip including an active region provided to generate radiation; a radiation exit face extending parallel to a main plane of extension of the active region; a molding directly adjoins at least one side face of the semiconductor device at least one back of the semiconductor chip remote from the radiation exit face; a mounting surface provided to mount the semiconductor device; and a spacer projecting beyond the radiation exit face in a vertical direction extending perpendicular to the radiation exit face.