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Subject: Re: [Homebrew_PCBs] UV LED + photoresist experiments

From: "Leon" <leon355@...>
Date: 2008-02-28

----- Original Message -----
From: "agscal -AGSCalabrese" <agscal@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, February 28, 2008 5:54 AM
Subject: Re: [Homebrew_PCBs] UV LED + photoresist experiments


> You might want to find a way to lose the glass layer.
> It may be sucking UV energy or converting it.
> How about vacuum suction or really thin glass ( 1mm ) ?
>
> Glass blocks UV

It depends on the wavelength, ordinary glass is quite transparent to the UV
used for PCB exposure.

Leon
--
Leon Heller
Amateur radio call-sign G1HSM
Yaesu FT-817ND transceiver
Suzuki SV1000S motorcycle
leon355@...
http://www.geocities.com/leon_heller