国家/地区 中国（3）
IPC部 C（4）
IPC大类 C25（4）
IPC小类 C25D（4）
IPC C25D003/38（3） C25D007/00（2） H05K003/18（2）
H05K007/20（2）
发明人
公开年 2022（4）
申请年 2022（3） 
专利权人

Optimized filling holes comprise modifying insulative inner wall of blind hole with reduced graphene oxide, depositing copper in blind hole through electroplating process, removing first dry film to expose copper foil, and removing exposed copper foil.

YANG N, YEH A

Preparation of graphene heat conducting sheet for e.g. reinforcing longitudinal heat flux transmission, involves spraying graphene oxide quantum dots on inner edge surface of prepared annular graphene oxide film, placing in humidity box, compacting and molding, and graphitizing.

KONG X, JIAO Y, ZHANG J, ZHANG Z

Preparing negative charge oxidation graphene, comprises adding concentrated sulfuric acid in reaction container, adding graphite powder, persulfate and phosphorus oxide, and adding concentrated sulfuric acid into graphite solution.

SONG T, CHEN W, PAN Z, LIU Z

Preparing composite copper graphene involves preparing graphene heat conducting film as base material, performing regular perforation process on surface of base material surface, performing electroplating treatment, performing copper deposition on substrate surface and rolling.

LIN Z, CHEN Q, LIANG H, CAI J