Resources Contact Us Home
Ink jet printhead and relative manufacturing process

Image Number 3 for United States Patent #7595004.

The chambers (42) and each corresponding ink feeding duct (56), made in a structural layer of photosensitive resin (38), are delimited by a flat bottom wall (36) made of a protective layer (34, 36) of tantalum and gold and an upper wall (44), consisting of a substantially concave surface, including at least one ejection nozzle (46) and joined to the bottom wall along a continuous perimetral line (52), in which the inner shape of each of the chambers (42) and of each of the feeding ducts (56) represents the complementary impression of the outer form of a sacrificial layer (57), obtained from a controlled and non-contained growth of a metal, deposited starting from the dimensions of the layer of gold (36), laid on top of the layer of tantalum (34).

  Recently Added Patents
Sacrificial spacer approach for differential source/drain implantation spacers in transistors comprising a high-k metal gate electrode structure
Method for isomerisation of hop alpha-acids using heterogeneous alkaline earth metal based catalysts
Image capture and identification system and process
Shield for vacuum circuit breaker
System and method of detecting and locating intermittent and other faults
Clock face
Methods and systems to reduce a number of simulations in a timing analysis
  Randomly Featured Patents
Tie exchange method
Fuel injector cup rotation limiting structure for an isolated fuel rail system
Seat assembly
Speaker housing
Spider of loudspeaker
High-energy weldable soft magnetic steel and its use for parts of magnetic suspension railways
Fitting for adjustably connecting a backrest member to a seat member
Fuel injection system
Method of making for RF line replacable modules
Apparatus for attaching a supplemental device to a minimally altered host firearm