Confecção de um perfurador de lamínulas de vidro por corrosão ácida

Química Nova

Heron Dominguez Torres Da Silva¹  Claudimir Lucio Do Lago¹ 

[1] ,Universidade de São Paulo Instituto de Química Departamento de Química FundamentalSão Paulo SP

关键词: microfabrication;    micro total analysis system;    drilling;    glass plate;   

DOI  :  10.1590/S0100-40422003000200022

来源: SciELO

【 摘 要 】

A simple device for glass plate drilling, which is an important step in microfabrication procedures, is described. A reservoir of concentrated hydrofluoric acid with a hole in its bottom is affixed against the glass plate. Leakage is prevented by using a neoprene O-ring. A plastic pipet tip inserted in the reservoir, close to the corrosion region, provides forced convection by pressure variations inside it. A device to make 5 simultaneous holes in a plate is also presented. For a 140 µm thickness alkaline glass lamina and 1/8" O-ring, 5 holes are drilled in 20 min.

【 授权许可】

CC BY-NC   
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