PRE-ETCH IMPLANTATION DAMAGE FOR THE REMOVAL OF THIN FILM LAYERS
    24.
    发明申请
    PRE-ETCH IMPLANTATION DAMAGE FOR THE REMOVAL OF THIN FILM LAYERS 审中-公开
    用于去除薄膜层的预处理植入物损伤

    公开(公告)号:WO2004061910A3

    公开(公告)日:2004-09-02

    申请号:PCT/US0336372

    申请日:2003-11-12

    Applicant: INTEL CORP

    Abstract: A method for anisotropically and selectively removing a dielectric thin film layer (102, 103) from a substrate layer (100) is disclosed, wherein the dielectric layer is subjected to ion implantation (122) prior to wet etching. This method may be applied adjacent to a structure such as a gate electrode within a microelectronic structure to prevent undercutting of the dielectric material to be preserved between the gate electrode and the substrate layer, as may happen with more isotropic etching techniques.

    Abstract translation: 公开了一种用于从基底层(100)各向异性地选择性地去除电介质薄膜层(102,103)的方法,其中介电层在湿蚀刻之前进行离子注入(122)。 该方法可以与微电子结构内的诸如栅电极的结构相邻地施加,以防止在栅电极和衬底层之间保留的电介质材料的底切,这可能由于更多的各向同性蚀刻技术而发生。

    METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE COMPRISING A MOS TRANSISTOR
    25.
    发明申请
    METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE COMPRISING A MOS TRANSISTOR 审中-公开
    制造包含MOS晶体管的半导体器件的方法

    公开(公告)号:WO99065070A2

    公开(公告)日:1999-12-16

    申请号:PCT/IB1999/001003

    申请日:1999-06-03

    CPC classification number: H01L29/6659 H01L21/2255 H01L21/31155

    Abstract: The invention relates to a method of manufacturing a (horizontal) MOST, as used, for example, in (BI)CMOS ICs. On either side of a gate electrode (2), the surface of a silicon substrate (10, 11) which is positioned above a gate oxide (1A) is provided with a dielectric layer (1B) at the location where a source (3) and drain (4) are to be formed, which dielectric layer includes a thermal oxide layer (1B) to be formed as the starting layer. The source (3) and/or drain (4) is/are provided with LDD regions (3A, 4A) and the remaining parts (3B, 4B) of the source (3) and drain (4) are provided by an ion implantation (I1) of doping atoms into the silicon substrate (10, 11). A MOST obtained in this way still suffers from so-called short-channel effects, resulting in a substantial dependence of the threshold voltage upon the length of the gate electrode (2), in particular in the case of very short lengths of the gate electrode (2). In a method according to the invention, the LDD regions (3A, 4A) are made as follows: in a first step, suitable doping atoms (D) are implanted into the dielectric layer (1B), in a second ion implantation (I2), and subsequently in a second step, a part of the doping atoms (D) is diffused from the dielectric layer (1B) into the silicon substrate (10, 11), whereby the LDD regions (3A, 4A) are formed. This method enables a MOST with excellent properties to be obtained, for example with a flatter profile of the threshold voltage versus the gate-electrode (2) length (curve 130) than in conventionally made MOSTs (curve 131). This result is obtained in a simple and reproducible manner.

    Abstract translation: 本发明涉及制造(水平)MOST的方法,例如在(BI)CMOS IC中使用的MOST。 在栅电极(2)的任一侧,位于栅极氧化物(1A)上方的硅衬底(10,11)的表面在源极(3)的位置处设置有电介质层(1B) 并形成漏极(4),该介质层包括形成为起始层的热氧化物层(1B)。 源极(3)和/或漏极(4)设置有LDD区域(3A,4A),源极(3)和漏极(4)的其余部分(3B,4B)由离子注入 (I1)掺杂到硅衬底(10,11)中。 以这种方式获得的MOST仍然遭受所谓的短沟道效应,导致阈值电压对栅电极(2)的长度的实质依赖性,特别是在非常短的栅电极长度的情况下 (2)。 在根据本发明的方法中,LDD区域(3A,4A)如下制造:在第一步骤中,在第二离子注入(I2)中,将合适的掺杂原子(D)注入到介电层(1B) ,随后在第二步骤中,掺杂原子(D)的一部分从电介质层(1B)扩散到硅衬底(10,11)中,由此形成LDD区域(3A,4A)。 该方法使得能够获得具有优异性能的MOST,例如与常规制作的MOST(曲线131)相比,阈值电压相对于栅电极(2)长度(曲线130)的平坦轮廓。 该结果以简单且可再现的方式获得。

    REDUCTION OF CHARGE LOSS IN NONVOLATILE MEMORY CELLS BY PHOSPHOROUS IMPLANTATION INTO PECVD NITRIDE/OXYNITRIDE FILMS
    26.
    发明申请
    REDUCTION OF CHARGE LOSS IN NONVOLATILE MEMORY CELLS BY PHOSPHOROUS IMPLANTATION INTO PECVD NITRIDE/OXYNITRIDE FILMS 审中-公开
    通过磷酸盐沉积在磷酸盐/氧化物膜中,减少非离子存储细胞中的电荷损失

    公开(公告)号:WO99010924A1

    公开(公告)日:1999-03-04

    申请号:PCT/US1998/017585

    申请日:1998-08-25

    Abstract: A semiconductor device (400) formed in a semiconductor substrate (402) with a low hydrogen content barrier layer (432) formed over the semiconductor device (400). The barrier layer (432) is implanted with phosphorous ions (429). The semiconductor device (400) may have a hydrogen getter layer (424) formed under the barrier layer (432). The barrier layer (432) is a high temperature PECVD nitride film, a high temperature PECVD oxynitride film or a high temperature LPCVD nitride film. The hydrogen getter layer (424) is P-doped film having a thickness between 1000 and 2000 Angstroms and is a PSG, BPSG, PTEOS deposited oxide film, or BPTEOS deposited oxide film. Interconnects (438) are made by a tungsten damascene process.

    Abstract translation: 形成在形成在半导体器件(400)上的低氢含量阻挡层(432)的半导体衬底(402)中的半导体器件(400)。 阻挡层(432)注入磷离子(429)。 半导体器件(400)可以具有形成在阻挡层(432)下方的吸氢剂层(424)。 阻挡层(432)是高温PECVD氮化物膜,高温PECVD氮氧化物膜或高温LPCVD氮化物膜。 吸氢剂层(424)是厚度在1000和2000埃之间的P掺杂膜,是PSG,BPSG,PTEOS沉积氧化物膜或BPTEOS沉积氧化物膜。 互连(438)由钨镶嵌工艺制成。

Patent Agency Ranking