Abstract
In this work, we propose an advanced 3-D heterogeneous 6T SRAM with a newly designed hetero-integration method. CFET inverters and IGZO pass gates are vertically stacked within a 2T footprint area. The Low-Temperature Hetero-Layers Bonding Technique (LT-HBT) process is utilized successfully to fabricate single crystalline heterogeneous Double Layer Transferred (DLT) Ge/2Si CFET-OI on an 8-inch full wafer. Furthermore, an IGZO nFET is deposited and treated as a pass gate (PG) to realize a 6T SRAM operation. The hetero-integration of IGZO PG and self-align DLT Ge/2Si CFET inverters showed improved Read Static Noise Margin (RSNM) and stand-by leakage power. The state-of-the-art 3-D heterogeneous 6T SRAM leads to 42% area reduction.
| Original language | English |
|---|---|
| Title of host publication | 2022 International Electron Devices Meeting, IEDM 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2051-2054 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781665489591 |
| DOIs | |
| State | Published - 2022 |
| Externally published | Yes |
| Event | 2022 International Electron Devices Meeting, IEDM 2022 - San Francisco, United States Duration: 03 12 2022 → 07 12 2022 |
Publication series
| Name | Technical Digest - International Electron Devices Meeting, IEDM |
|---|---|
| Volume | 2022-December |
| ISSN (Print) | 0163-1918 |
Conference
| Conference | 2022 International Electron Devices Meeting, IEDM 2022 |
|---|---|
| Country/Territory | United States |
| City | San Francisco |
| Period | 03/12/22 → 07/12/22 |
Bibliographical note
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