Vertical-Tier Capacitor Contacts for Smaller IC Footprints
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Solution Overview
Problem
Conventional capacitors face challenges in terms of size and efficiency due to their structural limitations, which affect their performance in power circuitry and other electronic applications.
Innovation Solution
The development of capacitors with vertical contacts extending through conductive tiers, featuring alternating layers of conductive and dielectric materials, allows for efficient electrical coupling and reduced physical footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional capacitor structures are used, then manufacturing is simpler, but device area and efficiency are compromised
Solution Approach 1:
The patent transitions from planar capacitor structures to three-dimensional stacked structures with vertical conductive contacts extending through multiple conductive tiers. This dimensional change allows capacitors to be stacked vertically, significantly increasing device area efficiency by utilizing the vertical dimension for multiple capacitor layers while maintaining a compact footprint.
Solution Approach 2:
The patent implements nested structures where conductive contacts are embedded within dielectric materials, and multiple capacitor tiers are stacked within a compact volume. The vertical contacts extend through conductive tiers and are surrounded by dielectric layers, creating a nested arrangement that maximizes space utilization and improves device area efficiency.
2Area of stationary object
If capacitor size is reduced, then device area efficiency improves, but electrical performance may deteriorate
Solution Approach 1:
The patent compensates for reduced planar area by extending capacitor structures vertically through multiple tiers. The vertical conductive contacts extend through conductive tiers separated by dielectric layers, creating a three-dimensional structure that maintains electrical performance while reducing the horizontal footprint.
Solution Approach 2:
The patent uses alternating layers of conductive materials (for electrodes and contacts) and dielectric materials (for insulation and separation). This composite structure enables compact vertical stacking while maintaining electrical performance through proper material selection and layer configuration.
Data Source
AI summary
Some embodiments include apparatuses and methods of forming the apparatuses. One of the apparatuses includes conductive materials located in different levels of the apparatus, dielectric materials located in different levels of the apparatus, a first conductive contact, and a second conductive contact. One of the conductive materials is between two of the dielectric materials. One of the dielectric materials is between two of the conductive materials. The first conductive contact has a length extending through the conductive materials and the dielectric materials in a direction perpendicular to the levels of the apparatus. The first conductive contact is electrically separated from the conductive materials. The second conductive contact contacts a group of conductive materials of the conductive materials.