Patent ID: 11133293

Abstract:
Three-dimensional (3D) memory devices with 3D phase-change memory (PCM) and methods for forming and operating the 3D memory devices are disclosed. In an example, a 3D memory device includes a first semiconductor structure including a substrate, an array of NAND memory cells above the substrate, and a first bonding layer above the array of NAND memory cells. The first bonding layer includes first bonding contacts. The 3D memory device also further includes a second semiconductor structure including a second bonding layer above the first bonding layer and including second bonding contacts, a peripheral circuit and an array of PCM cells above the second bonding layer, and a semiconductor layer above and in contact with the peripheral circuit. The 3D memory device further includes a bonding interface between the first and second bonding layers. The first bonding contacts are in contact with the second bonding contacts at the bonding interface.