Manufacturing method of silicon nozzle plate and manufacturing method of inkjet head

• Main Authors: TSUBOI KAZUHIKO, HIRAI TOHRU
• Format: Patent
• Language: English
• Published: 11.10.2011
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PHYSICS

A manufacturing method of a silicon nozzle plate, having; a film forming process to provide the film representing an etching mask for etching the silicon substrate on a surface of the silicon substrate; a pattern film forming to form a pattern film by partially removing the film based on a nozzle hole forming pattern and an outer shape forming pattern; a silicon substrate etching process to form nozzle holes based on the nozzle hole forming pattern representing the etching mask, and to form a half etching portion at least in a part of the silicon substrate based on the outer shape forming pattern; and a silicon substrate separating process to separate the silicon substrate by splitting along the half etching portion.