国家/地区 中国（3）
IPC部 C（4）
IPC大类 C30（4） H01（2）
IPC小类 C30B（4）
IPC C30B029/06（4）
发明人
公开年 2021（3）
申请年 2021（4）
专利权人

Graphite substrate useful for manufacturing light emitting diode epitaxial wafer in semiconductor field, comprises graphite disc and multiple annular isolation layer, where surface of graphite disc is provided with multiple grooves for containing epitaxial wafer.

LI P, LU X, XIAO Y, GUO B, DING T, GE Y

Long-life guide cylinder comprises e.g. outer layer as pre-oxidized felt insulating felt, middle layer as modified resin formed on inner side wall of outer layer, and inner layer as carbon/carbon composite material formed on inner side wall of middle layer.

BAI Y, QIN X, LIU Y, ZHOU J

High thermal conductivity composite crucible useful for polycrystalline silicon ingot comprises crucible body having cavity structure with open upper end, and quartz ceramic structure layer laid on graphene-silica composite material layer.

LI J, XIE Y, GAO Y

Thin film growth structure comprises a board, fluid support layer, base that is formed on an upper surface of flowable support layer, substrate, and flowable support layer which is thin film formed of material that maintains a liquid state.

LEE I, WUK L W