Passivation of ink-jet printheads

Details Passivation of ink-jet printheads Passivation of ink-jet printheads

B - Operations, Transporting

41

J

B41J 2/16 (2006.01) C23C 16/04 (2006.01)

Patent

CA 2268320

A process for the selective passivation of the channel walls (210, 220) of a channelled ink-jet printhead component (100) by the chemical vapour deposition of a passivant coating, the process comprising mounting said component in a support (130) in registration with a datum location (175) therein, the support having masking means (170) for masking selected areas of the component, and depositing the passivant coating on unmasked portions of the channel walls.

L'invention concerne un procédé de passivation sélective des parois (210, 220) de canal d'un composant (100) de tête d'impression à jet d'encre à canal par métallisation chimique sous vide d'un revêtement de passivation. Le procédé consiste à monter ledit composant sur un support (130) conformément à un emplacement de référence (175), le support ayant des moyens de masquage (170) permettant de masquer des zones choisies du composant, et à déposer le revêtement de passivation sur les parties des parois de canal non masquées.

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