Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Forming nonplanar surface
Patent
1982-11-23
1984-03-20
Lusignan, Michael R.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Forming nonplanar surface
346140R, 204 15, G01D 1518
Patent
active
044381913
ABSTRACT:
A method of making a monolithic bubble-driven ink jet print head is provided which eliminates the need for using glue or other adhesives to construct multiple part assemblies. The concept of the method is to provide a layered structure which can be manufactured by relatively standard integrated circuit and printed circuit processing techniques. First, a substrate/resistor combination is manufactured. Then a foundation of conductive material is firmly attached to the substrate and a resist layer is used to define a perimeter/wall combination over the foundation, with the perimeter/wall combination surrounding the resistors and providing hydraulic separation between them. The perimeter/wall combination is then electroplated in place. A flash coat of metal is applied over the resist which is inside the perimeter of the perimeter/wall combination and a second layer of resist is used to define the desired orifices and the external shape of the part. A second layer of metal is then electroplated in place on the flash coat covering the first layer of resist and the perimeter/wall combination. The flash coat and resists are then stripped, leaving a void defined by the second layer of metal and the perimeter/wall combination, with this second layer of metal having an orifice therein. The void forms the firing chamber for supplying ink to the resistors during operation.
REFERENCES:
patent: 4251824 (1982-07-01), Shirato
patent: 4336548 (1982-06-01), Matsumoto
patent: 4394670 (1983-07-01), Sugitani
Cloutier Frank L.
Low Robert N.
McClelland Paul H.
Hewlett--Packard Company
Lusignan Michael R.
Seidleck James J.
Smith Joseph H.
LandOfFree
Monolithic ink jet print head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Monolithic ink jet print head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monolithic ink jet print head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1604664