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    • 36. 发明申请
    • SILICON NITRIDE PASSIVATION FOR A SOLAR CELL
    • 用于太阳能电池的氮化硅钝化
    • WO2008127920A2
    • 2008-10-23
    • PCT/US2008/059674
    • 2008-04-08
    • APPLIED MATERIALS, INC.ZHOU, LisongDIXIT, SangeetaCHOI, Soo Young
    • ZHOU, LisongDIXIT, SangeetaCHOI, Soo Young
    • B05D5/12
    • C23C16/345H01L31/1868Y02E10/50Y02P70/521
    • A silicon nitride layer may be formed with a suitable refractive index, mass density, and hydrogen concentration so that the layer may serve as an ARC/passivation layer on a solar cell substrate. The silicon nitride layer may be formed on a solar cell substrate by adding a hydrogen gas diluent to a conventional precursor gas mixture during the deposition process. Alternatively, the silicon nitride layer may be formed on a solar cell substrate by using a precursor gas mixture consisting essentially of silane and nitrogen. To improve deposition chamber throughput, the silicon nitride layer may be a dual stack film that includes a low-hydrogen interface layer and a thicker bulk silicon nitride layer. Placing a plurality of solar cell substrates on a substrate carrier and transferring the substrate carrier into the deposition chamber may further enhance deposition chamber throughput.
    • 可以形成具有合适的折射率,质量密度和氢浓度的氮化硅层,使得该层可以用作太阳能电池基板上的ARC /钝化层。 氮化硅层可以通过在沉积工艺期间向常规的前体气体混合物中加入氢气稀释剂而形成在太阳能电池基板上。 或者,可以通过使用主要由硅烷和氮组成的前体气体混合物在太阳能电池基板上形成氮化硅层。 为了提高沉积室的生产量,氮化硅层可以是包括低氢界面层和较厚体积氮化硅层的双层叠膜。 将多个太阳能电池基板放置在基板载体上并将基板载体转移到沉积室中可进一步增强沉积室的生产量。