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    • 2. 发明授权
    • 반도체장치의 접촉창 형성방법
    • 半导体器件接触孔的制造方法
    • KR1019940011733B1
    • 1994-12-23
    • KR1019910021299
    • 1991-11-26
    • 삼성전자주식회사
    • 안지홍
    • H01L21/28
    • The method includes the steps of forming a 1st interlayered insulating layer (20) and a buffer material layer on a semiconductor substrate (10), patterning the buffer material layer to form a buffer layer (40), forming a 2nd interlayered insulating layer (50), patterning the layer (50) to form a contact hole pattern (72), partially etching the layers (50)(40) the layer (20) in turn to form a contact hole (9). A self-aligned buried contact hole without misalignment is formed by anisotropic etching process.
    • 该方法包括以下步骤:在半导体衬底(10)上形成第一层间绝缘层(20)和缓冲材料层,对缓冲材料层进行构图以形成缓冲层(40),形成第二层间绝缘层 图案化层(50)以形成接触孔图案(72),依次部分地蚀刻层(50)(40)(40)以形成接触孔(9)。 通过各向异性蚀刻工艺形成未对准的自对准埋入接触孔。
    • 4. 发明授权
    • 고집적 반도체 메모리장치 및 그 제조방법
    • LSI半导体存储器件及其制造方法
    • KR1019930009594B1
    • 1993-10-07
    • KR1019910001590
    • 1991-01-30
    • 삼성전자주식회사
    • 안지홍
    • H01L27/108
    • H01L27/10852H01L27/10817H01L28/92
    • The semiconductor memory cell capacitor, in contact with the transistor source, includes a storage electrode adjacent the transisitor source and having a hollow cylinderical electrode with a preset wall thickness, surrounding a column electrode formed of a number of bars, with a base plate electrode connecting the cylinderical and column electrodes to each other. A dielectric layer coats the whole surface of the storage electrode, and a plate electrode is formed on top of the dielectric layer. the base plate electrode lower surface is flat, and the base plate electrode is formed along the contours of the transistor structure. There may be planerised bit lines beneath the capacitor.
    • 与晶体管源接触的半导体存储单元电容器包括与横截面源相邻的存储电极,并且具有预定壁厚的中空圆柱形电极,围绕由多个柱形成的列电极,底板电极连接 圆柱和柱电极彼此。 电介质层覆盖存储电极的整个表面,并且在电介质层的顶部上形成平板电极。 基板电极下表面是平坦的,并且基板电极沿着晶体管结构的轮廓形成。 电容器下面可能有平面的位线。
    • 9. 发明授权
    • 고집적 반도체 메모리장치의 커패시터 제조방법(챙이 있는 원통구조 커패시터)
    • 制造VLSI半导体存储器件的方法
    • KR1019940004603B1
    • 1994-05-25
    • KR1019910012004
    • 1991-07-15
    • 삼성전자주식회사
    • 안지홍
    • H01L27/108
    • forming a interlaid-insulating layer and a planarization layer on a substrate; selectively etching the interlaid-insulating layer and planarization layer to form a contact hole; filling the contact hole with a first conductive material; forming an etch stop on the overall surface of the substrate; forming a first material layer and a second material layer on the resultant structure, alternately; selectively etching first material layer, second material layer and the etch stop to form a groove; removing second material layer by a predetermined depth to form a space; depositing a second conductive material having a predetermined thickness in the groove on the resultant structure; coating a material having different etch rate from that of second conductive material to dry etch on the resultant structure; forming an etch mask pattern by etch back; and selectively etching second conductive material layer using the etch mask pattern as a mask to form a storage electrode. The method obtains a large capacitance.
    • 在衬底上形成层间绝缘层和平坦化层; 选择性地蚀刻层间绝缘层和平坦化层以形成接触孔; 用第一导电材料填充接触孔; 在衬底的整个表面上形成蚀刻停止点; 交替地在所得结构上形成第一材料层和第二材料层; 选择性地蚀刻第一材料层,第二材料层和蚀刻停止层以形成凹槽; 以预定深度去除第二材料层以形成空间; 在所述结构上在所述槽中沉积具有预定厚度的第二导电材料; 将具有与第二导电材料的蚀刻速率不同的蚀刻速率的材料涂覆到所得结构上的干蚀刻; 通过蚀刻形成蚀刻掩模图案; 并且使用蚀刻掩模图案作为掩模来选择性地蚀刻第二导电材料层以形成存储电极。 该方法获得大电容。