You can use sand blasting machine; you can fit different nose and have
different holes dimension.

Best regards,
Mihaela

________________________________

From: Jackgong Hotmail [mailto:jackgonglatech@hotmail.com]
Sent: Sun 03-May-09 1:07 AM
To: General MEMS discussion
Subject: Re: [mems-talk] Bearing holes in pyrex/glass wafers



I also have the same question. But I want to drill a array of holes =
through
glass or any other transparent(to visible light) materials and the =
diameter
is around 400 micron. Hope some one can help us.

Gong