Patent ID: 8815626
Filing Date: 2014-08-26
Classification: B41J,B81C,H01L

Abstract:
1. A method of manufacturing a MEMS thermal printhead die on an SOI structure having a top surface, a buried oxide layer, and a mounting surface opposite the top surface, the method comprising steps for: (a) forming a plurality of ink-delivery sites on the top surface, wherein each ink-delivery site comprises a plurality of ink-dispensing pores formed through the SOI structure; (b) forming an ohmic heater adjacent to at least one of the ink-dispensing pores; (c) forming at least one under-bump metallization (“UBM”) pad on the mounting surface; and (d) forming at least one through-silicon via (“TSV”) plug, the TSV plug electrically coupling the ohmic heater to the UBM pad through the thickness of the printhead die.