Branch-Type Programmable Semiconductor Structure
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Solution Overview
Problem
The challenge in semiconductor device manufacturing is to achieve improved quality, yield, performance, and reliability while reducing complexity as device dimensions are scaled down, and existing technologies struggle to efficiently utilize limited wafer area for multiple programmable configurations.
Innovation Solution
A semiconductor device with a branch-type programmable structure is designed, featuring electrodes with vertically stacked bottom and top branch units and insulation layers, allowing for multiple programmable configurations within a limited wafer area by overlapping sets of bottom and top plates, enabling efficient use of space and integration with existing fabrication processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional planar electrode structures are used, then fabrication is simple, but wafer area utilization is low and multiple programmable configurations cannot be achieved
Solution Approach 1:
The patent transitions from traditional planar (2D) electrode structures to a three-dimensional stacked configuration with bottom branch units, top branch units, and intermediate branch units arranged vertically. This dimensional change enables multiple programmable configurations within limited wafer area by utilizing the vertical dimension, allowing electrodes to be positioned at different heights and orientations while maintaining electrical isolation through insulation layers.
Solution Approach 2:
The patent implements a nested structure where bottom branch units, intermediate branch units, and top branch units are stacked vertically with insulation layers between them. Each branch unit contains multiple electrodes that can be independently configured, creating a nested arrangement that maximizes space utilization. The overlapping projection areas of adjacent branch units further enhance this nesting effect, enabling multiple programmable configurations within a compact footprint.
2Adaptability or versatility
If wafer area is increased to accommodate multiple programmable configurations, then more configurations are possible, but manufacturing cost and device size increase
Solution Approach 1:
By stacking branch units vertically with bottom, intermediate, and top configurations, the patent utilizes the vertical dimension to multiply the number of programmable configurations without proportionally increasing wafer area. The overlapping projection areas of adjacent branch units ensure that the horizontal footprint remains compact while the vertical stacking provides multiple independent programmable layers.
Solution Approach 2:
The patent merges multiple electrode structures into a single integrated stacked assembly where bottom branch units, intermediate branch units, and top branch units coexist in vertical proximity. This consolidation enables multiple programmable configurations to share the same physical space, reducing the total wafer area required compared to implementing separate planar structures for each configuration.
3Productivity
If device dimensions are scaled down to improve integration, then more devices fit on wafer, but manufacturing complexity and reliability issues increase
Solution Approach 1:
The patent segments the electrode structure into distinct modular units: bottom branch units, intermediate branch units, and top branch units, each containing multiple electrodes. This segmentation allows each unit to be fabricated using standardized processes while maintaining overall system complexity through modular assembly. The repeating patterns within each branch unit further simplify fabrication by enabling batch processing.
Solution Approach 2:
Each branch unit is designed with universal characteristics that allow it to serve multiple functions: electrical conduction, mechanical support, and programmable configuration. The standardized electrode patterns and insulation layer arrangements within each branch unit enable them to be replicated across the wafer using the same fabrication processes, reducing overall manufacturing complexity despite the three-dimensional structure.
Data Source
AI summary
The present application discloses a semiconductor device and a method for fabricating the semiconductor device. The semiconductor device includes a first electrode including a first vertical column, and a first bottom branch unit at a first vertical level and including a first set of bottom plates extending from the first vertical column and parallel to a first direction; two second electrodes respectively including a second vertical column, and a second bottom branch unit at a second vertical level higher than the first vertical level and including a first set of bottom plates extending from the second vertical column and parallel to the first direction; and a first insulation layer positioned between the first and second bottom branch unit. The first sets of bottom plates of the first and second bottom branch unit are partially overlapped. The first insulation layer and the first and second electrode together configure a programmable structure.