Laminate for use in manufacture of ink jet printheads

Details Laminate for use in manufacture of ink jet printheads Laminate for use in manufacture of ink jet printheads

B - Operations, Transporting

41

J

B41J 2/045 (2006.01) B41J 2/16 (2006.01) H01L 41/24 (2006.01)

Patent

CA 2096726

2096726 9209436 PCTABS00013 A co-fired laminate (10) for use in printheads for drop-on-demand ink jet printers has two inner layers (12, 14) of piezoelectric material which are thickness poled in opposite senses, two outer layers (11, 15) of inactive material and a fifth layer (13) disposed between the inner layers which is electrically insulating under the printhead operating conditions and conductive under the poling conditions of the inner layers. The fifth layer preferably is an N.T.C. material with its critical temperature between the operating and poling temperatures. After poling of the inner layers further manufacture of the printhead from one side thereof can be effected as described.

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