会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 42. 发明授权
    • Non-volatile-memory cell for electrically programmable read only memory
having a trench-like coupling capacitors
    • 用于具有沟槽状耦合电容器的电可编程只读存储器的非易失性存储单元
    • US5801415A
    • 1998-09-01
    • US947832
    • 1997-10-08
    • Jin-Yuan LeeMong-Song Liang
    • Jin-Yuan LeeMong-Song Liang
    • H01L21/8247H01L29/423H01L29/788H01L29/76
    • H01L27/11521H01L29/42324
    • A method for making an improved Electrically Programmable Read-Only-Memory (EPROM) device having non-volatile memory cells with enhanced capacitive coupling was achieved. The array of memory cells consists of a single field effect transistor (FET) having an additional floating gate. The FET is formed in a well etched into an insulating layer on the substrate surface. After forming the FET gate oxide, a polysilicon layer is patterned to form a trench-like floating gate with increased capacitive coupling. An interlevel dielectric layer is deposited. A second poly-silicon layer is deposited in the well and chem/mech polished back to form the control gate. The insulating layer having the wells is selectively removed. Lightly doped source/drain areas, self-aligned to the FET gate electrodes, are implanted and after forming sidewall spacers on the gate electrodes, source/drain contacts and buried bit lines are formed by a second implant. An insulating layer is deposited over the array of FETs having contact openings to the FET control gates. Another polysilicon layer is deposited and patterned to form the word lines. The word lines and buried bit lines are connected to the peripheral circuits to complete the EPROM chip.
    • 实现了具有增强的电容耦合的具有非易失性存储单元的改进的可编程只读存储器(EPROM)装置的方法。 存储器单元的阵列由具有附加浮置栅极的单个场效应晶体管(FET)组成。 FET被形成在衬底表面上被很好地刻蚀成绝缘层的阱中。 在形成FET栅极氧化物之后,将多晶硅层图案化以形成具有增加的电容耦合的沟槽状浮栅。 沉积层间电介质层。 第二个多晶硅层沉积在阱中,化学/机械表面抛光后形成控制栅极。 选择性地除去具有孔的绝缘层。 注入与FET栅电极自对准的轻掺杂源极/漏极区,并且在栅电极上形成侧壁间隔物之后,通过第二植入物形成源极/漏极接触和掩埋位线。 绝缘层沉积在具有与FET控制栅极的接触开口的FET阵列上。 沉积并图案化另一个多晶硅层以形成字线。 字线和掩埋位线连接到外围电路以完成EPROM芯片。
    • 44. 发明授权
    • Method of eliminating buried contact trench in SRAM technology
    • 在SRAM技术中消除埋接触沟的方法
    • US5654231A
    • 1997-08-05
    • US621273
    • 1996-03-25
    • Mong-Song LiangJin-Yuan LeeChun-Yi Shih
    • Mong-Song LiangJin-Yuan LeeChun-Yi Shih
    • H01L21/28H01L21/8244
    • H01L27/11H01L21/28
    • A new method of forming an improved buried contact junction is described. A first polysilicon layer is deposited overlying a gate silicon oxide layer on the surface of a semiconductor substrate. The first polysilicon and gate oxide layers are etched away where they are not covered by a buried contact mask to provide an opening to the semiconductor substrate. Ions are implanted through the opening into the semiconductor substrate to form a buried contact junction. A layer of dielectric material is deposited over the first polysilicon layer and over the semiconductor substrate within the opening. The layer is anisotropically etched to leave spacers on the sidewalls of the first polysilicon layer and adjacent the opening. A second layer of polysilicon is deposited overlying the first polysilicon layer and over the substrate within the opening. The second polysilicon layer is patterned to form gate electrodes and a polysilicon contact overlying the buried contact junction wherein the mask used for the patterning is misaligned and a portion of a spacer overlying the buried contact junction is exposed and wherein a portion of the second polysilicon layer other than that of the contact remains as residue. The second polysilicon layer residue is etched away wherein the exposed spacer protects the buried contact junction within the semiconductor substrate from the etching to complete the formation of a buried contact in the fabrication of an integrated circuit.
    • 描述了形成改进的埋地接触结的新方法。 沉积在半导体衬底的表面上的栅极氧化硅层上的第一多晶硅层。 第一多晶硅和栅极氧化物层被蚀刻掉,其中它们不被掩埋的接触掩模覆盖以提供到半导体衬底的开口。 离子通过开口植入半导体衬底中以形成掩埋接触结。 电介质材料层沉积在开口内的第一多晶硅层上方和半导体衬底之上。 该层被各向异性地蚀刻以在第一多晶硅层的侧壁和邻近开口处留下间隔物。 第二层多晶硅沉积在第一多晶硅层的上方并且在开口内的衬底上。 图案化第二多晶硅层以形成栅电极和覆盖掩埋接触结的多晶硅接触,其中用于图案化的掩模不对准,并且覆盖掩埋接触结的间隔物的一部分被暴露,并且其中第二多晶硅层的一部分 除了接触物以外,残留物残留。 第二多晶硅层残留物被蚀刻掉,其中暴露的间隔物保护半导体衬底内的掩埋接触结点免受蚀刻,以在集成电路的制造中完成掩埋接触的形成。
    • 45. 发明授权
    • Unified stacked contact process for static random access memory (SRAM)
having polysilicon load resistors
    • 具有多晶硅负载电阻的静态随机存取存储器(SRAM)的统一堆叠接触过程
    • US5652174A
    • 1997-07-29
    • US650696
    • 1996-05-20
    • Shou-Gwo WuuMong-Song LiangChung-Hui SuChen-Jong Wang
    • Shou-Gwo WuuMong-Song LiangChung-Hui SuChen-Jong Wang
    • H01L21/8244H01L27/11
    • H01L27/11H01L27/1112
    • A method is provide for a unified stacked contact structure which concurrently forms all the polysilicon interconnects and the polysilicon load resistors on a SRAM device. FETs formed from a first polysilicon layer are coated with a first insulating layer. A second polysilicon layer is deposited and patterned forming portions of the SRAM circuit and concurrently forming openings over FET source/drain areas. A second insulating layer is deposited, and contact openings are selectively etched in the insulating layer over the openings in the second polysilicon layer. The exposed second polysilicon layer in the contacts serve as an etch mask for etching the first insulating layer to the source/drain contact areas, thereby forming contacts self-aligned to the openings in the second polysilicon layer. The contact openings in the node contact areas also expose portions of the gate electrodes .of the SRAM driver transistors. The unified stacked contacts are completed by depositing and patterning a conformal third polysilicon layer that forms interconnections in the contact openings between the exposed patterned polysilicon layers, and the third polysilicon layer is also patterned to form the polysilicon load resistors. The number of masking and other process steps are substantially reduced.
    • 提供了一种统一的堆叠接触结构的方法,其同时形成SRAM器件上的所有多晶硅互连和多晶硅负载电阻。 由第一多晶硅层形成的FET被涂覆有第一绝缘层。 沉积第二多晶硅层并构图形成SRAM电路的部分,同时在FET源极/漏极区域上形成开口。 沉积第二绝缘层,并且在第二多晶硅层中的开口上的绝缘层中选择性地蚀刻接触开口。 触点中暴露的第二多晶硅层用作蚀刻掩模,用于将第一绝缘层蚀刻到源极/漏极接触区域,从而形成与第二多晶硅层中的开口自对准的触点。 节点接触区域中的接触开口也暴露SRAM驱动晶体管的栅电极的部分。 通过沉积和图案化形成在曝光的图案化多晶硅层之间的接触开口中形成互连的共形第三多晶硅层,并且第三多晶硅层也被图案化以形成多晶硅负载电阻来完成统一的堆叠接触。 掩模和其他工艺步骤的数量显着减少。
    • 47. 发明授权
    • Elevated source/drain with solid phase diffused source/drain extension
for deep sub-micron mosfets
    • 用于深亚微米mosfets的固相扩散源极/漏极扩展的源极/漏极升高
    • US5504031A
    • 1996-04-02
    • US498676
    • 1995-07-03
    • Ching-Hsiang HsuMong-Song Liang
    • Ching-Hsiang HsuMong-Song Liang
    • H01L21/336H01L21/8238H01L21/82
    • H01L29/66628H01L21/823814H01L29/41783Y10S257/90
    • A method of forming an elevated source/drain structure with a solid phase diffused source/drain extension is described. A semiconductor substrate is provided having n-channel and p-channel active areas separated by isolation areas. Gate electrodes are formed overlying a gate oxide layer over each of the active areas. First spacers are formed on the sidewalls of the gate electrodes wherein the first spacers have a first dopant concentration. The first spacers in the p-channel active area are removed and second spacers are formed on the sidewalls of the gate electrodes in the p-channel active area wherein the second spacers have a second dopant concentration different from the first dopant concentration. An epitaxial layer is grown on the surface of the semiconductor substrate wherein the epitaxial layer forms the elevated source/drain structure. First ions are implanted into the n-channel active area and second ions are implanted into the p-channel active area. The first and second ions are driven in to form heavily doped regions within the semiconductor substrate underlying the elevated source/drain structure. The driving in also drives in the first and second dopant concentrations of the first and second spacers to form source/drain extensions within the n-channel and p-channel active areas underlying the first and second spacers to complete the formation of the elevated source/drain structure with solid-phase diffused source/drain extensions in the manufacture of an integrated circuit.
    • 描述了形成具有固相扩散源极/漏极延伸的升高的源极/漏极结构的方法。 提供了具有被隔离区分隔开的n沟道和p沟道有源区的半导体衬底。 在每个有效区域上形成覆盖栅极氧化物层的栅电极。 第一间隔物形成在栅电极的侧壁上,其中第一间隔物具有第一掺杂剂浓度。 除去p沟道有源区中的第一间隔物,并且在p沟道有源区中的栅电极的侧壁上形成第二间隔物,其中第二间隔物具有不同于第一掺杂剂浓度的第二掺杂剂浓度。 在半导体衬底的表面上生长外延层,其中外延层形成升高的源/漏结构。 第一离子注入n沟道有源区,第二离子注入p沟道有源区。 驱动第一和第二离子以在升高的源极/漏极结构下面的半导体衬底内形成重掺杂区域。 驱动还驱动第一和第二间隔物的第一和第二掺杂剂浓度,以在第一和第二间隔物下面的n沟道和p沟道有源区内形成源极/漏极延伸部分,以完成升高的源极/ 漏极结构,在集成电路的制造中具有固相扩散的源极/漏极延伸。