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    • 3. 发明授权
    • Pb/Bi-containing high-dielectric constant oxides using a
non-Pb/Bi-containing perovskite as a buffer layer
    • 含有Pb / Bi的高介电常数氧化物,使用非Pb / Bi的钙钛矿作为缓冲层
    • US5912486A
    • 1999-06-15
    • US842863
    • 1997-04-17
    • Scott R. Summerfelt
    • Scott R. Summerfelt
    • C23C14/08H01L21/02H01L21/28H01L21/314H01L21/316H01L21/8242H01L27/108H01L29/51H05K1/03
    • H01L21/28185H01L21/02197H01L21/02304H01L21/28158H01L21/28167H01L21/28194H01L21/314H01L28/56H01L29/513H01L29/517Y10S148/014Y10S148/118Y10S438/967
    • This is a method for fabricating a structure useful in semiconductor circuitry. The method comprises: growing a buffer layer of non-Pb/Bi-containing high-dielectric constant oxide layer directly or indirectly on a semiconductor substrate; and depositing a Pb/Bi-containing high-dielectric constant oxide on the buffer layer. Alternately this may be a structure useful in semiconductor circuitry, comprising: a buffer layer 26 of non-lead-containing high-dielectric constant oxide layer directly or indirectly on a semiconductor substrate 10; and a lead-containing high-dielectric constant oxide 28 on the buffer layer. Preferably a germanium layer 12 is epitaxially grown on the semiconductor substrate and the buffer layer is grown on the germanium layer. When the substrate is silicon, the non-Pb/Bi-containing high-dielectric constant oxide layer is preferably less than about 10 nm thick. A second non-Pb/Bi-containing high-dielectric constant oxide layer 30 may be grown on top of the Pb/Bi-containing high-dielectric constant oxide and a conducting layer (top electrode 32) may also be grown on the second non-Pb/Bi-containing high-dielectric constant oxide layer.
    • 这是用于制造在半导体电路中有用的结构的方法。 该方法包括:在半导体衬底上直接或间接生长非Pb / Bi的高介电常数氧化物层的缓冲层; 以及在所述缓冲层上沉积含Pb / Bi的高介电常数氧化物。 或者,这可以是在半导体电路中有用的结构,其包括:直接或间接地在半导体衬底10上的非含铅高介电常数氧化物层的缓冲层26; 和在缓冲层上的含铅高介电常数氧化物28。 优选地,在半导体衬底上外延生长锗层12,并且在锗层上生长缓冲层。 当衬底是硅时,非Pb / Bi的高介电常数氧化物层的厚度优选小于约10nm。 可以在含Pb / Bi的高介电常数氧化物的顶部上生长第二非Pb / Bi的高介电常数氧化物层30,并且还可以在第二非绝缘材料上生长导电层(顶电极32) -Pb / Bi高介电常数氧化物层。
    • 5. 发明授权
    • Method of forming gate oxide for field effect transistor
    • 形成场效应晶体管栅极氧化物的方法
    • US5646074A
    • 1997-07-08
    • US573960
    • 1995-12-15
    • Rickey ChenRex Chen
    • Rickey ChenRex Chen
    • H01L21/28H01L21/02
    • H01L21/28185H01L21/28211Y10S148/117Y10S148/118Y10S438/906Y10S438/974
    • Disclosed is a process for manufacturing a gate oxide of a MOSFET. Since the performance of the gate oxide is deteriorated in photo resist removing, DI healing and high temperature annealing are introduced to recover the gate oxide. A process for manufacturing the gate oxide of the MOSFET on a wafer, includes the steps of: pre-cleaning the wafer, forming gate oxide layer, coating a photo resist, exposing the photo resist, developing the photo resist, implanting ions over the developed photo resist, removing the photo resist, post-cleaning the gate oxide for the purpose of good attachment of a gate polysilicon layer, DI healing the gate oxide, and annealing the gate oxide at a high temperature. As a result, the pass rates for Ebd and Qbd tests of the gate oxide increase.
    • 公开了一种用于制造MOSFET的栅极氧化物的工艺。 由于栅极氧化物的性能在光致抗蚀剂去除中劣化,所以引入DI愈合和高温退火以恢复栅极氧化物。 一种用于在晶片上制造MOSFET的栅极氧化物的工艺包括以下步骤:预先清洗晶片,形成栅极氧化层,涂覆光致抗蚀剂,曝光光致抗蚀剂,显影光致抗蚀剂, 光刻胶,去除光致抗蚀剂,对栅极氧化物进行后清洗,以便良好地附着栅极多晶硅层,DI修复栅极氧化物,并在高温下退火栅极氧化物。 结果,栅极氧化物的Ebd和Qbd测试的合格率增加。
    • 9. 发明授权
    • Pb/Bi-containing high-dielectric constant oxides using a
non-P/Bi-containing perovskite as a buffer layer
    • 含有P / Bi的钙钛矿作为缓冲层的含Pb / Bi的高介电常数氧化物
    • US5393352A
    • 1995-02-28
    • US127222
    • 1993-09-27
    • Scott R. Summerfelt
    • Scott R. Summerfelt
    • C23C14/08H01L21/02H01L21/28H01L21/314H01L21/316H01L21/8242H01L27/108H01L29/51H05K1/03H01L29/12
    • H01L21/28185H01L21/02197H01L21/02304H01L21/28158H01L21/28167H01L21/28194H01L21/314H01L28/56H01L29/513H01L29/517Y10S148/014Y10S148/118Y10S438/967
    • This is a method for fabricating a structure useful in semiconductor circuitry. The method comprises: growing a buffer layer of non-Pb/Bi-containing high-dielectric constant oxide layer directly or indirectly on a semiconductor substrate; and depositing a Pb/Bi-containing high-dielectric constant oxide on the buffer layer. Alternately this may be a structure useful in semiconductor circuitry, comprising: a buffer layer 26 of non-lead-containing high-dielectric constant oxide layer directly or indirectly on a semiconductor substrate 10; and a lead-containing high-dielectric constant oxide 28 on the buffer layer. Preferably a germanium layer 12 is epitaxially grown on the semiconductor substrate and the buffer layer is grown on the germanium layer. When the substrate is silicon, the non-Pb/Bi-containing high-dielectric constant oxide layer is preferably less than about 10 nm thick. A second non-Pb/Bi-containing high-dielectric constant oxide layer 30 may be grown on top of the Pb/Bi-containing high-dielectric constant oxide and a conducting layer (top electrode 32) may also be grown on the second non-Pb/Bi-containing high-dielectric constant oxide layer.
    • 这是用于制造在半导体电路中有用的结构的方法。 该方法包括:在半导体衬底上直接或间接生长非Pb / Bi的高介电常数氧化物层的缓冲层; 以及在所述缓冲层上沉积含Pb / Bi的高介电常数氧化物。 或者,这可以是在半导体电路中有用的结构,其包括:直接或间接地在半导体衬底10上的非含铅高介电常数氧化物层的缓冲层26; 和在缓冲层上的含铅高介电常数氧化物28。 优选地,在半导体衬底上外延生长锗层12,并且在锗层上生长缓冲层。 当衬底是硅时,非Pb / Bi的高介电常数氧化物层的厚度优选小于约10nm。 可以在含Pb / Bi的高介电常数氧化物的顶部上生长第二非Pb / Bi的高介电常数氧化物层30,并且还可以在第二非绝缘材料上生长导电层(顶电极32) -Pb / Bi高介电常数氧化物层。