会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 89. 发明申请
    • Manufacturing process for annealed wafer and annealed wafer
    • 退火晶圆和退火晶圆的制造工艺
    • US20060121291A1
    • 2006-06-08
    • US11265129
    • 2005-11-03
    • Yoshinori HayamizuSatoshi TobeNorihiro Kobayashi
    • Yoshinori HayamizuSatoshi TobeNorihiro Kobayashi
    • B32B13/04H01L21/324
    • H01L21/3225
    • There are provided a heat-treating method capable of suppressing generation of slip in a CZ silicon single crystal wafer having a diameter of mainly 300 mm or more even under high temperature heat treatment to annihilate grown-in defects in the vicinity of a surface of the wafer, and an annealed wafer having a DZ layer in a surface layer of the wafer and oxide precipitates in the bulk thereof at a high density which exert a high gettering effect. First heat treatment of a silicon single crystal wafer manufactured from a silicon single crystal ingot pulled by means of a Czochralski method is performed at a temperature in the range of 600 to 1100° C. to form oxide precipitates in the bulk of the wafer, and thereafter, second heat treatment is performed at a temperature in the range of 1150 to 1300° C.
    • 提供了即使在高温热处理下也能够抑制直径为300mm以上的CZ硅单晶晶片中的滑动产生的热处理方法,以消除在表面附近的生长缺陷 晶片,并且在晶片的表面层中具有DZ层的退火晶片,其氧化物以其高密度析出,其发挥高吸杂效应。 在由600℃〜1100℃的温度范围内进行利用切克劳斯基法(Czochralski method)拉伸的硅单晶锭制造的硅单晶晶片的第一次热处理,以在晶片本体中形成氧化物析出物, 此后,在1150〜1300℃的温度下进行第二次热处理。