Results 111 to 120 of about 20,465 (139)

Accuracy evaluation of a universal dental implant guide for simulating implantation in posterior area on dental molds. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Wang R   +9 more
europepmc   +1 more source

A new removable connecting device for MARPE expander with non-common path of insertion. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Wu S   +12 more
europepmc   +1 more source

[Application and efficacy analysis of tympanic cartilage shaping device in endoscopic type Ⅰ tympanoplasty]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Jin Y   +9 more
europepmc   +1 more source

一种提高光刻胶曝光精度的方法

open access: yes
 本发明公开了一种提高光刻胶曝光精度的方法,该光刻胶对紫外光具有高透射性,该方法是通过对透过光刻胶的紫外光进行垂直反射或对透过光刻胶的紫外光进行全吸收实现的。本发明通过对透过光刻胶的紫外光进行垂直反射或全吸收,减小了透射紫外光的影响,大幅提高了曝光精度,能够有效避免经光刻机晶片托盘反射的紫外光对光刻胶进行二次曝光,从而提高光刻精度 ...
杨富华, 杨晋玲, 毛旭
core  

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