ONO fabrication process for reducing oxygen vacancy content in bottom oxide layer in flash memory devices
    3.
    发明授权
    ONO fabrication process for reducing oxygen vacancy content in bottom oxide layer in flash memory devices 有权
    ONO制造工艺,用于降低闪存器件底部氧化层中的氧空位

    公开(公告)号:US06803275B1

    公开(公告)日:2004-10-12

    申请号:US10308518

    申请日:2002-12-03

    IPC分类号: H01L21336

    摘要: Process for fabricating a SONOS flash memory device, including in one embodiment, forming a bottom oxide layer of an ONO structure on a semiconductor substrate, wherein the bottom oxide layer has a first oxygen vacancy content; treating the bottom oxide layer to decrease the first oxygen vacancy content to a second oxygen vacancy content; and depositing a dielectric charge-storage layer on the bottom oxide layer. In another embodiment, a process for fabricating a SONOS flash memory device includes forming a bottom oxide layer of an ONO structure on the semiconductor substrate under strongly oxidizing conditions, wherein the bottom oxide layer has a super-stoichiometric oxygen content and an oxygen vacancy content reduced relative to a bottom oxide layer formed by a conventional process; and depositing a dielectric charge-storage layer on the bottom oxide layer.

    摘要翻译: 在一个实施例中,包括在半导体衬底上形成ONO结构的底部氧化物层的SONOS闪速存储器件的制造方法,其中底部氧化物层具有第一氧空位含量; 处理底部氧化物层以将第一氧空位含量降低至第二氧空位含量; 以及在底部氧化物层上沉积介电电荷存储层。 在另一个实施例中,制造SONOS闪速存储器件的工艺包括在强氧化条件下在半导体衬底上形成ONO结构的底部氧化物层,其中底部氧化物层具有超化学计量的氧含量和氧空位含量降低 相对于通过常规方法形成的底部氧化物层; 以及在底部氧化物层上沉积介电电荷存储层。

    Semiconductor memory with data retention liner
    7.
    发明授权
    Semiconductor memory with data retention liner 有权
    具有数据保留衬垫的半导体存储器

    公开(公告)号:US07297592B1

    公开(公告)日:2007-11-20

    申请号:US11195201

    申请日:2005-08-01

    IPC分类号: H01L21/8247

    摘要: A manufacturing method for a dual bit flash memory includes providing a semiconductor substrate and depositing a charge-trapping dielectric layer with the depositing performed without using ammonia at an ultra-slow deposition rate. First and second bitlines are implanted and a wordline layer is deposited. A hard mask layer is deposited over the wordline layer. A photoresist is deposited over the wordline layer and used to form a hard mask. The photoresist is removed. The wordline layer is processed using the hard mask to form a wordline and the hard mask is removed. A reduced hydrogen, high-density data retention liner to reduce charge loss, covers the wordline and the charge-trapping dielectric layer. An interlayer dielectric layer is deposited over the data retention liner.

    摘要翻译: 一种用于双位闪速存储器的制造方法包括提供半导体衬底和沉积电荷捕获电介质层,其中沉积是以超低沉积速率使用氨而不使用氨。 植入第一和第二位线,并存放字线层。 硬掩模层沉积在字线层上。 光刻胶沉积在字线层上并用于形成硬掩模。 去除光致抗蚀剂。 使用硬掩模处理字线层以形成字线,并且去除硬掩模。 减少氢,高密度数据保持衬垫以减少电荷损失,覆盖字线和电荷捕获电介质层。 层间绝缘层沉积在数据保持衬里上。

    Method of manufacturing a semiconductor memory with deuterated materials
    10.
    发明授权
    Method of manufacturing a semiconductor memory with deuterated materials 有权
    用氘代材料制造半导体存储器的方法

    公开(公告)号:US06884681B1

    公开(公告)日:2005-04-26

    申请号:US10672093

    申请日:2003-09-26

    IPC分类号: H01L21/336 H01L21/8246

    CPC分类号: H01L27/11568 H01L29/66833

    摘要: A method for manufacturing a MirrorBit® Flash memory includes providing a semiconductor substrate and successively depositing a first insulating layer, a charge-trapping layer, and a second insulating layer. First and second bitlines are implanted and wordlines are formed before completing the memory. Spacers are formed between the wordlines and an inter-layer dielectric layer is formed over the wordlines. One or more of the second insulating layer, wordlines, spacers, and inter-layer dielectric layers are deuterated, replacing hydrogen bonds with deuterium, thus improving data retention and substantially reducing charge loss.

    摘要翻译: 一种用于制造MirrorBit(闪存)闪存的方法包括:提供半导体衬底,并依次沉积第一绝缘层,电荷俘获层和第二绝缘层。 植入第一和第二位线,并在完成内存之前形成字线。 在字线之间形成间隔,并且在字线之间形成层间电介质层。 第二绝缘层,字线,间隔层和层间电介质层中的一个或多个被氘化,用氘替代氢键,从而改善数据保留并显着降低电荷损失。