Shanghai Smartee Denti-technology Co., Ltd.

Shanghai Micro Electronics Equipment (group) Co., Ltd.

Qilu Pharmaceutical Co., Ltd.

Shen, Gang

Taikang Bybo Dental Group Co., Ltd.

Xingxing Wang

Junfeng Yao

Huimin Zhuang

Gang Wu

Haiying He

Xiaolin Li

Gang Shen

Zheng Wang

Kai Zhou

Bin Zhao

Xiaofei Wang

Dakun Qin

Zongbin Li

Jianyu Jiang

Zhijun Huo

Hui Fu

Shanshan Liu

Chaoqun Zhang

Tao Guo

Jingting Lu

Te Wang

Ziqing Xu

Feifei Yang

Yuangen Yu

Shanshan Wu

Sensen Yang

Ruixue Zhou

Tingting Wei

Dental applicane set

Dental appliance with frontal barrier part

Dental appliance with side barrier parts

Tongue habit correcting appliance

Dental appliance

Dental attachment

Attachment for dental appliance

A vacuumizing device includes a vacuum chamber, a bonding fixture and a vacuumizing system. The bonding fixture is disposed in the vacuum chamber and includes a substrate table provided with a plurality of grooves for retention of the substrate by suction. The vacuumizing system is disposed in communication with both the vacuum chamber and grooves. During vacuumizing by the vacuumizing system, a vacuum value in the grooves is smaller than or equal to a vacuum value in the vacuum chamber. In the vacuumizing device and methods, the vacuumizing system is used to vacuumize the grooves in the substrate table and the vacuum chamber so that the vacuum value in the grooves is always smaller than or equal to that in the vacuum chamber. As a result, the substrates are firmly retained on the substrate table without warping, thereby improving the quality of substrate bonding.

Vacuumizing device and vacuumizing method for bonding substrate

Disclosed in the present disclosure are a crystal form of a dihydropyrido ring compound, and preparation method and intermediate thereof. 

Crystal form, preparation method and intermediate of dihydropyrido ring compound

Growing community of inventors

Shanghai, China

Xingxing Wang