GALLIUM NITRIDE/SAPPHIRE THIN FILM HAVING REDUCED BENDING DEFORMATION
    11.
    发明申请
    GALLIUM NITRIDE/SAPPHIRE THIN FILM HAVING REDUCED BENDING DEFORMATION 有权
    具有减少弯曲变形的氮化钠/ SAPPHIRE薄膜

    公开(公告)号:US20080248259A1

    公开(公告)日:2008-10-09

    申请号:US11869080

    申请日:2007-10-09

    IPC分类号: B32B1/00

    摘要: The present invention relates to a gallium nitride/sapphire thin film, wherein a curvature radius thereof is positioned on the right side of a curve plotted from the following functional formula (I): Y=Y0+A·e−(x1−1)/T1+B·(1−e−x2/T2)   (I) wherein Y is the curvature radius (m) of a gallium nitride/sapphire thin film, x1 is the thickness (μm) of a gallium nitride layer, x2 is the thickness (mm) of a sapphire substrate, Y0 is −107±2.5, A is 24.13±0.50, B is 141±4.5, T1 is 0.56±0.04, and T2 is 0.265±0.5.

    摘要翻译: 本发明涉及一种氮化镓/蓝宝石薄膜,其曲率半径位于从以下函数式(I)绘制的曲线的右侧:<?in-line-formula description =“In-line 公式“end =”lead“?> Y = Y <0> - (x -1)/ T 1 + B。(1-e / T 2 )(I)<?in-line-formula description =“In-line Formulas”end = “尾”→其中Y是氮化镓/蓝宝石薄膜的曲率半径(m),x 1是氮化镓层的厚度(mum),x 2 < / SUB>是蓝宝石衬底的厚度(mm),Y 0 <0>为-107±2.5,A为24.13±0.50,B为141±4.5,T 1 < 为0.56±0.04,T <2>为0.265±0.5。