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    • 5. 发明申请
    • METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE COMPRISING A THIN SEMICONDUCTOR WAFER
    • 制造包含半导体薄膜半导体器件的半导体器件的方法
    • WO2016041852A1
    • 2016-03-24
    • PCT/EP2015/070793
    • 2015-09-11
    • ABB TECHNOLOGY AG
    • JANISCH, WolfgangDE VRIES, AtzeMATTHIAS, Sven
    • H01L29/66H01L21/762H01L21/225H01L29/739H01L29/744H01L29/08H01L21/20
    • H01L21/225H01L21/2007H01L21/2253H01L21/2256H01L21/283H01L21/673H01L21/76256H01L29/0834H01L29/0873H01L29/66333H01L29/66363H01L29/7395H01L29/744
    • A method for manufacturing a vertical power semiconductor device is provided, wherein a first impurity is provided at the first main side (103) of a semiconductor wafer (101). A first oxide layer (112) is formed on the first main side (103) of the wafer (101), wherein the first oxide layer (112) is partially doped with a second impurity in such way that any first portion of the first oxide layer (112) which is doped with the second impurity is spaced away from the semiconductor wafer by a second portion of the first oxide layer (112) which is not doped with the second impurity and which is disposed between the first portion of the first oxide layer (112) and the first main side (103) of the semiconductor wafer (101). Thereafter a carrier wafer (115) is bonded to the first oxide layer (112). During front-end-of-line processing on the second main side (102) of the semiconductor wafer (101), the second impurity is diffused from the first oxide layer (112) into the semiconductor wafer (101) from its first main side (103) by heat generated during the front-end-of-line processing.
    • 提供一种用于制造垂直功率半导体器件的方法,其中在半导体晶片(101)的第一主侧(103)处设置第一杂质。 第一氧化物层(112)形成在晶片(101)的第一主侧(103)上,其中第一氧化物层(112)部分地掺杂有第二杂质,使得第一氧化物 掺杂有第二杂质的层(112)通过未掺杂第二杂质的第一氧化物层(112)的第二部分与半导体晶片隔开,并且设置在第一氧化物的第一部分之间 层(112)和半导体晶片(101)的第一主侧(103)。 此后,载体晶片(115)与第一氧化物层(112)结合。 在半导体晶片(101)的第二主面(102)的前端处理中,第二杂质从第一主面从第一氧化物层(112)扩散到半导体晶片(101) (103)通过在前端处理期间产生的热量。
    • 9. 发明申请
    • PROCESS FOR MANUFACTURING AN INTEGRATED CIRCUIT STRUCTURE
    • 制造集成电路结构的过程
    • WO1983000948A1
    • 1983-03-17
    • PCT/US1982001195
    • 1982-09-02
    • NCR CORPORATION
    • NCR CORPORATIONCHIAO, Samuel, Yue
    • H01L21/265
    • H01L21/266H01L21/033H01L21/2253H01L21/2652H01L21/76213Y10S438/944
    • In a process for manufacturing an integrated circuit structure an oxide layer (11) is provided on a silicon substrate, a silicon nitride layer (12) is provided on the oxide layer and a photoresist mask (14) is then patterned and utilized to etch the nitride layer (12) such that the mask (14) has an edge projecting beyond the nitride layer (12). The substrate is then subjected to ion implantation, regions underlying the mask (14) being protected from implantation. The implanted ions are then diffused a predetermined distance beneath the mask (14). Next, oxidation at a temperature of 700-800 C is effected, the differential oxidation rate of doped and undoped silicon reducing the formation of undesired "bird's head" and "bird's beak" features in the resulting oxide (18). To form a true coplanar structure, the formed oxide (18) is removed, a further ion implantation is effected using the nitride (12) as a mask and a further oxidation step is effected. Alternatively an unoxidized doped region resulting from the initial ion implantation may be utilized during the second oxidation step.
    • 在制造集成电路结构的工艺中,在硅衬底上提供氧化物层(11),在氧化物层上提供氮化硅层(12),然后对光致抗蚀剂掩模(14)进行构图并用于蚀刻 氮化物层(12),使得掩模(14)具有突出超过氮化物层(12)的边缘。 然后对衬底进行离子注入,保护掩模(14)下方的区域免于植入。 然后将注入的离子在掩模(14)下方扩散预定距离。 接下来,在700-800℃的温度下进行氧化,掺杂和未掺杂的硅的差异氧化速率降低了所得氧化物中不希望有的“鸟头”和“鸟嘴”特征的形成(18)。 为了形成真正的共面结构,去除形成的氧化物(18),使用氮化物(12)作为掩模进行进一步的离子注入,并进行进一步的氧化步骤。 或者,可以在第二氧化步骤期间利用由初始离子注入产生的未氧化的掺杂区域。