Stacked Resistor Capacitor Component Design Freedom
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Solution Overview
Problem
Existing composite electronic components with both resistors and capacitors have limited design flexibility due to restricted electric characteristics and structural constraints, such as requiring specific shapes and sizes, which restricts their application in various circuits and increases production complexity.
Innovation Solution
A composite electronic component design featuring a resistor with an insulating base portion, separated conductive layers, and a capacitor mounted on the resistor, allowing for flexible electrical connections and independent adjustment of electric characteristics, enabling series or parallel connections on a wiring substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a resistor is formed directly on the surface of the capacitor body, then the composite electronic component can be integrated, but the electric characteristics of the resistor are restricted by the size of the capacitor body and the shape of the external electrodes, and the degree of freedom in design is extremely low
Solution Approach 1:
The invention separates the resistor and capacitor into independent chip elements that can be manufactured separately with optimized geometries and electrical characteristics. Each element can be designed independently without being constrained by the other's dimensions or electrode configurations, thereby increasing design freedom while maintaining integration benefits.
Solution Approach 2:
The invention transitions from a two-dimensional surface mounting approach to a three-dimensional stacked configuration where independent chip elements are arranged vertically. This dimensional change allows each element to maintain its optimal shape and size without being constrained by the other element's footprint, resolving the contradiction between design freedom and integration.
2Ease of manufacture
If various chip elements are formed into rectangular parallelepipeds of the same shape and size, then they can be collectively covered with a lead frame, but the electric characteristics of the individual chip elements are restricted to a certain extent
Solution Approach 1:
The invention allows each chip element to have localized optimizations in shape, size, and electrode configuration according to its specific electrical function requirements. The resistor can have a geometry optimized for resistance characteristics while the capacitor can have a geometry optimized for capacitance, and both can still be assembled together using standardized lead frame techniques.
3Ease of manufacture
If the resistor and capacitor are electrically connected in parallel only, then the composite electronic component can be manufactured, but the degree of freedom in design is greatly limited in terms of circuit design
Solution Approach 1:
The invention provides a dynamic connection configuration where the electrical connection between resistor and capacitor can be selected as either series or parallel based on circuit requirements. This is achieved through flexible lead frame routing and electrode arrangement that enables both connection topologies without requiring different manufacturing processes, thus maintaining manufacturing simplicity while greatly enhancing circuit design flexibility.
Data Source
AI summary
A composite electronic component includes a capacitor and a resistor stacked in a height direction. The capacitor includes a capacitor body, and first and second external electrodes. The resistor includes a base portion, a resistor, first and second upper surface conductors, first and second lower surface conductors, first connecting conductors, and second connecting conductors. An upper surface of the base portion of the resistor faces a lower surface of the capacitor body of the capacitor, and the first upper surface conductor and the first external electrode are electrically connected, and the second upper surface conductor and the second external electrode are electrically connected.