Superimposed Detector Chip Reduces Electromagnetic Interference
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Solution Overview
Problem
Existing detector systems require significant space and are susceptible to electromagnetic interference due to lengthy bond wires, which can lead to signal perturbations during signal processing.
Innovation Solution
A detector system with a semiconductor-based detector chip and a microelectronic semiconductor chip arranged in a superimposed configuration, utilizing a short electrically conducting connection via a connecting layer to reduce space requirements and electromagnetic interference, while allowing for efficient signal processing and amplification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the detector chip and semiconductor chip are arranged side-by-side on a carrier, then the mounting area is larger, but the electrical connection path is longer and more susceptible to electromagnetic interference
Solution Approach 1:
The patent transitions from a planar side-by-side arrangement to a three-dimensional superimposed configuration, stacking the detector chip and semiconductor chip vertically. This dimensional change reduces the electrical connection path length from the lateral distance between separate chips to a direct vertical connection through the connecting layer, thereby minimizing electromagnetic interference while maintaining compact mounting area.
Solution Approach 2:
The patent merges the detector chip and semiconductor chip into a single integrated assembly where the detector chip is positioned directly on the semiconductor chip. This combining eliminates the need for separate mounting areas and long inter-chip connections, reducing both space requirements and electromagnetic interference susceptibility through the integrated structure.
2Reliability
If lengthy bond wires are used to connect the detector chip to the semiconductor chip, then the electrical connection is established, but the signal is more susceptible to electromagnetic interference and perturbation
Solution Approach 1:
The patent extracts and eliminates the lengthy bond wires from the system by implementing a direct electrical connection through a connecting layer between the detector chip and semiconductor chip. This removal of the problematic bond wires eliminates the primary source of electromagnetic interference and signal perturbation, significantly improving signal integrity.
Solution Approach 2:
The patent introduces a connecting layer as an intermediary structure that provides direct electrical connection between the detector chip and semiconductor chip. This intermediary eliminates the need for external bond wires and creates a protected, integrated electrical pathway that is less susceptible to electromagnetic interference.
3Area of stationary object
If the detector chip is placed on the semiconductor chip in a superimposed configuration, then the space requirement and mounting area are reduced, but the electrical connection must be made through a connecting layer
Solution Approach 1:
The connecting layer serves multiple functions simultaneously: it provides mechanical support for the detector chip, establishes electrical connection between the chips, and acts as a structural interface for the integrated assembly. This multi-functionality reduces the need for separate connection components, simplifying the overall structure despite the three-dimensional configuration.
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
The solution achieves a compact detector system with reduced susceptibility to electromagnetic interference, enabling effective signal processing and amplification, suitable for applications like ambient light sensors with minimal structural height and space requirements.
Implementation Method 1
The detector chip is also preferably designed as a radiation detector chip to detect radiation, especially visible radiation, striking the detector chip that can generate a detector signal in the detector chip
Data Source
AI summary
A detector system with a microelectronic semiconductor chip and a separate optoelectronic detector chip is specified, wherein the detector chip is positioned on the semiconductor chip. A detector subassembly with such a detector system is also specified.