Browse Prior Art Database

Fabrication of a Cancer Cell Window

IP.com Disclosure Number: IPCOM000092786D
Original Publication Date: 1967-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

Dohm, JC: AUTHOR [+4]

Abstract

In the detection and analysis of cancer cells it is important to use an accurately defined fluid channel in a clear quartz window element. When grooves or channels are cut directly in the quartz, they have rough surfaces which are detrimental to the optical clearness of the window. This fabricated quartz window element preserves the optical clearness of the flat, polished quartz plates 20 and 21.

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Fabrication of a Cancer Cell Window

In the detection and analysis of cancer cells it is important to use an accurately defined fluid channel in a clear quartz window element. When grooves or channels are cut directly in the quartz, they have rough surfaces which are detrimental to the optical clearness of the window. This fabricated quartz window element preserves the optical clearness of the flat, polished quartz plates 20 and
21.

A photoetched sheet of molybdenum or tungsten 24 is used to provide an interior fluid passage channel 25. A three to four mil thickness of metal sheet 24 is laminated and bonded singly or in multiple plies between optically clear plates 20 and 21. Such etched molybdenum or tungsten laminations offer resistance to chemicals and solvents, are dimensionally stable, and are burr free. The same standard resist coatings 22 and 23, which are used to control the photoetching of channel 25 in the sheet 24, can also be used as the adhesive for bonding the parts together by heat and pressure. Such bonding is accomplished without the intrusion of material 22 and 23 into channel 25 which is to have a straight-walled width of about four mils. Bonding materials other than the resist can also be used.

In addition to usage as an optical element as noted, the etched sheet technique can also be used in fabricating pneumatic or fluid logic channels and formations of optical fluid logic arrangements of minute and complex forms.

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