MICROINJECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a microinjecting device which is enhanced in bonding strength between a protecting film and a heating chamber barrier layer and is remarkably improved in total printing performance. SOLUTION: A bonding promotion layer 20 is formed to an entire face of a protecting film 2 to be in touch with a heating layer 11, an electrode layer 3 and a heating chamber barrier layer 5 thereby improving a contact force between the protecting film 2 and the heating chamber barrier layer 5. A working solution is accordingly prevented from leaking outside and an insulating function of the protecting film 2 is prevented from being lowered. Moreover, a temperature resistance and a moisture resistance of the heating chamber barrier layer 5 are improved and a total thickness distribution of the heating chamber barrier layer 5 is uniformed.