铝酸镧衬底 (LaAlO₃)

描述

苏州科跃 铝酸镧(LaAlO₃)衬底

铝酸镧(LaAlO₃)是一种高性能单晶衬底,广泛应用于工业生产及高温超导薄膜的制备。该材料采用提拉法(Czochralski)生长工艺制造,可获得直径达 2 英寸甚至更大的单晶。其与 YBaCuO 高温超导薄膜的优异匹配性,加上低介电常数和极低的微波损耗,使其成为先进微波电子器件中的关键材料。

铝酸镧衬底主要物理性能

性能参数 数值
材料 LaAlO₃
晶体结构 室温:六方晶系;高于 435℃:立方晶系
晶格常数 (Å) 六方:a = 5.3575, c = 13.22;立方:a = 3.821
生长方法 提拉法(Czochralski)
莫氏硬度 6–6.5
熔点 2080℃
密度 (g/cm³) 6.52
热膨胀系数 9.4 × 10⁻⁶ /℃
介电常数 ε = 21
损耗角正切(10 GHz) ~ 3 × 10⁻⁴ @ 300K;~ 0.6 × 10⁻⁴ @ 77K
外观 棕黄色至棕色,抛光表面,带有根据退火条件形成的天然孪晶结构
化学稳定性 室温下不溶于矿酸;高于 150℃ 时可溶于 H₃PO₄
关键特性 微波电子器件的理想材料

铝酸镧衬底规格

规格 参数
尺寸 10 × 3 mm、10 × 5 mm、10 × 10 mm、15 × 15 mm、20 × 20 mm、直径 15 mm、直径 20 mm、直径 1″、直径 2″、直径 2.6″
厚度 0.5 mm、1.0 mm
抛光 单面抛光 (SSP) 或双面抛光 (DSP)
晶向 <100>、<110>、<111>
定向精度 ±0.5°
边缘倒角 2°(可选 1°)
晶体角度 可按需提供特殊尺寸与晶向
表面粗糙度 (Ra) ≤ 5 Å(5 μm × 5 μm)

包装细节

苏州科跃在 Class 100 洁净袋或晶圆盒中封装铝酸镧衬底,并在 Class 1000 洁净室内完成包装,以确保产品的完整性与高洁净度。

选择苏州科跃高品质铝酸镧(LaAlO₃)衬底,为您的尖端工业与电子应用提供可靠支持。

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常见问题

Sputtering targets are materials used in thin-film deposition processes to create coatings on substrates. They are used in industries like semiconductors, optics, photovoltaics, and electronics.

Evaporation materials are used in Physical Vapor Deposition (PVD) processes, where materials are heated and evaporated to form a thin film on a substrate. These are critical for applications in optics, wear protection, and decorative coatings.

Boat crucibles are used as containers for evaporation materials during PVD processes. They help to uniformly evaporate materials onto the substrate for thin film formation.

Sputtering uses energetic particles to eject material from a target, while evaporation involves heating a material until it vaporizes and deposits on a substrate. Both are common methods in Physical Vapor Deposition (PVD) for creating thin films.

Consider the material composition, purity, target size, and application-specific requirements such as the thickness and uniformity of the film.

Yes, we offer customized sputtering targets, evaporation materials, and crucibles to meet specific customer requirements for size, material composition, and purity.

Yes, we can assist in selecting the most suitable material based on your application, whether it’s for optical coatings, semiconductor fabrication, or decorative finishes.

Yes, we offer both bulk and small quantities of sputtering targets, evaporation materials, and spherical powders to support research, prototyping, and development projects.