• 专利标题:   High density static RAM (SRAM) used in integrated circuit chip, has SRAM memory cells that form memory cell array in direction parallel to substrate, and memory cell arrays that form multi-layer stack in direction perpendicular to substrate.
  • 专利号:   CN114256245-A, CN218831176-U
  • 发明人:   JIAN H, YU T, LIU R, JIANG X
  • 专利权人:   BOPINGFANG TECHNOLOGY HANGZHOU CO LTD
  • 国际专利分类:   H01L027/11, H10B010/00
  • 专利详细信息:   CN114256245-A 29 Mar 2022 H01L-027/11 202246 Chinese
  • 申请详细信息:   CN114256245-A CN11590506 23 Dec 2021
  • 优先权号:   CN11590506, CN22279317

▎ 摘  要

NOVELTY - The memory has an SRAM memory cell and an interconnection wire structure (34) which are composed of two-dimensional semiconductor transistors, an address decoding circuit, a sensitive amplifier circuit, a control circuit and a driving/caching circuit. The two-dimensional semiconductor transistor comprises a channel formed by two-dimensional semiconductor materials, a grid electrode, a source electrode and a drain electrode. The transistor is conducted. Multiple SRAM memory cells form a memory cell array in a direction parallel to a substrate. Multiple memory cell arrays (31, 32, 33) form a multi-layer stack in a direction perpendicular to the substrate, interconnection within or between layers is realized by an interconnection wiring structure, and the plurality of SRAM memory cells are connected to an address decoding circuit, a sense amplifier circuit, a control circuit, and a driving/buffer circuit in a memory. USE - High density SRAM used in integrated circuit chip. ADVANTAGE - Improves the storage density and reduces the cost on the premise of ensuring the performance of the static random access memory since the storage unit can be stacked in multiple layers in a direction perpendicular to the substrate, and the connection between the layers or layers is realized by the interconnection wire structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the high density SRAM. Memory cell arrays (31,32,33) Interconnection wire structure (34)