This might actually not work all that great , ordinary glass absorbs many of the frequency's present in the UV light-source a reason why the windows on these chips are made out of quartz glass Peter Check out how I think about Packard Bell computers And tell me about your experience with them (I might put it on my page) http://www.geocities.com/SiliconValley/Lab/5883 mailto:pvh@microserve.net -----Original Message----- From: Herbert Graf To: PICLIST@MITVMA.MIT.EDU Date: Sunday, January 04, 1998 6:08 PM Subject: Re: PIC versus AVR >> -----Original Message----- >> From: pic microcontroller discussion list >> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Andrew Mayo >> Sent: Sunday, January 04, 1998 17:48 >> To: PICLIST@MITVMA.MIT.EDU >> Subject: Re: PIC versus AVR >> >> >> I don't know - though I note the suggestion elsewhere to put a >> magnifying glass over the top of the chip (hmm, does ordinary optical >> glass actually bend UV light?). > > Yes, although because UV is of shorter wavelength than visible light, the >focal point will I think be closer, therefore you have to adjust your focus >a little to ensure you cover >the whole piece of silicon. TTYL >