Resources Contact Us Home
Bubble-ink jet print head and fabrication method thereof

Image Number 4 for United States Patent #7320513.

A bubble-ink jet print head includes: a substrate having ink chambers to store ink and resistance heat emitting bodies to heat ink disposed thereover; and an ink supply passage which penetrates the substrate and which is connected with the ink chambers. The ink supply passage includes: a first trench formed at a first surface of the substrate in a first pattern having a separating distance from at least one of inlets of the ink chambers and connecting portions between the adjacent ink chambers, the first surface of the substrate having the ink chambers disposed thereover, and a second trench formed at a second surface of the substrate in a second pattern, having one of an area equal to and an area smaller than that of the first trench in the range of the first pattern of the first trench, and in communication with the first trench.

  Recently Added Patents
Oil extractor and the preparation method thereof
Duty cycle adjustment of remote illumination source to maintain illumination output
Semiconductor device and method for manufacturing the same
Systems, methods, and devices for selling transaction instruments via web-based tool
Copolymer for positive type lithography, polymerization initiator used in production of said copolymer, and composition for semiconductor lithography
Statistical identification of instances during reconciliation process
  Randomly Featured Patents
Prismatic lithium ion rechargeable battery
Dopamine receptor ligands and image agents
Surface effect vehicle
Interdental stimulator
Apparatus for processing high frequency edge information in a widescreen television system
Bicycle chain stay
Tablet chair with book rack
Polysilicon etch useful during the manufacture of a semiconductor device
Method and apparatus for searching frame alignment with false alignment protection
Methods and apparatus for scheduling ATM cells