Definition: A semiconductor technology that stacks multiple layers of silicon transistors vertically within a single chip to increase density and performance.
Explanation
Monolithic 3D integrated circuits involve stacking multiple layers of silicon transistors vertically on a single chip, rather than arranging them side-by-side on a flat surface. This approach enables higher transistor density, shorter signal paths, reduced power consumption, and greater computing capability within the same chip footprint. The key manufacturing challenge is to build these layers without damaging previously fabricated circuitry, which requires low-temperature processing and precise transfer techniques.
Example
Researchers have developed ultra-thin silicon sheets about 10 nanometers thick that can be transferred onto existing chip layers at temperatures below 200°C, enabling the creation of multi-layer silicon chips that maintain high performance without thermal damage to underlying circuits.
Who This Is For
This term is relevant for semiconductor engineers, chip designers, researchers in microelectronics, and technology professionals interested in advanced integrated circuit manufacturing and 3D chip architectures.
Related Terms
3D integrated circuits, silicon transistors, semiconductor manufacturing, transistor scaling, 3D NAND flash memory
Also Known As
monolithic 3D ICs, 3D silicon ICs