Thickfilm is an essential part of inkjet printheads. In the printheads used in Lexmark's 1100 series of printers, a dry film photosensitive laminate material is used to create the ink flow channels and to form an integral unit between the heater chip and the nozzle plate. In the printheads used for Lexmark's 7000 and 5700 series of printers, a liquid spin on photosensitive material is used to passivate the chip surface, planarize the chip surface, and promote adhesion between the nozzle plate and the chip. Both processes will be presented.
John F. Sullivan, Gary R. Williams, "Lexmark Inkjet Thickfilm Processes" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP14), 1998, pp 76 - 79, https://doi.org/10.2352/ISSN.2169-4451.1998.14.1.art00018_1