Nonvolatile flash memory based on biologically-integrated hierarchical nanostructures.
Nonvolatile flash memory based on biologically-integrated hierarchical nanostructures.
复制标题
基于生物集成分层纳米结构的非易失性闪存。
作者：
Sano,K.;Miura,A.;Shiba,K.;et al
多功能钛结合肽-1 的前六种肽赋予重组 L-铁蛋白，minT1-LF，经过基因工程改造并用于制造多层纳米颗粒结构。 minT1-LF 的多功能性使得容纳纳米颗粒的 minT1-LF 能够特异性结合到硅基板表面，并通过其生物矿化活性进行栅极氧化层的湿法生化制造。通过生物逐层方法制备了具有多层结构的三维（3D）纳米粒子结构，并将其嵌入金属氧化物半导体器件结构中作为闪存器件的电荷存储节点。 3D集成多层纳米颗粒结构成功地作为闪存器件中的电荷存储节点，与传统的单层结构器件相比，其电荷存储容量有所提高。
The first six peptides of multifunctional titanium binding peptide-1 bestowed recombinant L-ferritin, minT1-LF, was genetically engineered and used to fabricate multilayered nanoparticle architecture. The multifunctionality of minT1-LF enables specific binding of nanoparticle-accommodated minT1-LF to the silicon substrate surface and wet biochemical fabrication of gate oxide layer by its biomineralization activity. Three-dimensional (3D) nanoparticle architecture with multilayered structure was fabricated by the biological layer-by-layer method and embedded in a metal oxide–semiconductor device structure as a charge storage node of a flash memory device. The 3D-integrated multilayered nanoparticle architecture successfully worked as a charge storage node in flash memory devices that exhibited improved charge storage capacity compared with that of a conventional monolayer structure device.