摘要:
The inkjet printhead includes substrate having an ink feed hole formed to supply ink, a chamber layer stacked on the substrate, and including a plurality of main ink chambers formed therein with the ink feed hole therebetween and a plurality of compensation ink chambers formed therein between the main ink chambers that face each other; and a nozzle layer stacked on the chamber layer, and including a plurality of main nozzles corresponding to the main ink chambers and a plurality of compensation nozzles corresponding to the compensation ink chambers.
摘要:
The inkjet printhead includes substrate having an ink feed hole formed to supply ink, a chamber layer stacked on the substrate, and including a plurality of main ink chambers formed therein with the ink feed hole therebetween and a plurality of compensation ink chambers formed therein between the main ink chambers that face each other; and a nozzle layer stacked on the chamber layer, and including a plurality of main nozzles corresponding to the main ink chambers and a plurality of compensation nozzles corresponding to the compensation ink chambers.
摘要:
An apparatus to sense the temperature of an ink-jet head includes at least one or more CMOS (complementary metal oxide semiconductor) lateral BJTs (bipolar junction transistors) to sense the temperature of the ink-jet head, and a current supply unit to supply a current to the CMOS lateral BJTs. Minimum sized CMOS lateral BJTs are applied to an ink-jet printer head so that precise temperature control can be performed in a shuttle or array type ink-jet printer.
摘要:
An inkjet printhead and a method of manufacturing the same. The inkjet printhead may include a substrate through which an ink feed hole to supply ink is formed, a chamber layer stacked above the substrate and including a plurality of ink chambers filled with ink supplied from the ink feed hole, and a nozzle layer stacked on the chamber layer, wherein a plurality of nozzles through which ink is ejected and a plurality of via holes are formed in the nozzle layer.
摘要:
A thermal inkjet printhead is provided including a substrate, and a chamber layer, which is stacked on the substrate. The chamber layer includes an ink chamber that is filled with ink supplied from an ink feed hole. The printhead includes a heater inside the ink chamber that heats the ink, an island, which is formed on the substrate at an ink inlet port of the ink chamber, and a nozzle layer, which is stacked on the chamber layer, including a nozzle for ejecting the ink. The walls of the ink chamber and the island that face each other are symmetrical with respect to the center of the nozzle.
摘要:
Provided are a method of manufacturing a photosensitive epoxy structure using a photolithograph process, and a method of manufacturing an inkjet printhead using the method of manufacturing a photosensitive epoxy structure. The method of manufacturing the photosensitive epoxy structure includes forming an epoxy material layer formed of photosensitive epoxy; forming a first exposure pattern in the epoxy material layer by performing a first exposure operation; forming a second exposure pattern in the non-exposed portions of the epoxy material layer by performing a second exposure operation; and developing the epoxy material layer, wherein the amount of first UV energy used in the first exposure operation is different from the amount of second UV energy used in the second exposure operation.
摘要:
A thermal inkjet printhead includes a plurality of bonding pads to which an external voltage is applied, a plurality of common wires connected to the each of the bonding pads, respectively, a plurality of individual wires connected to each of the common wires, respectively, and heaters connected to each of the individual wires, respectively, to generate ink bubbles by heating ink, wherein each of the common wires includes a first metal layer and a first metal bump which are formed on the first metal layer.
摘要:
An ink feedhole of an inkjet printhead and a method of forming the same includes an ink feedhole that penetrates a substrate and has a width that narrows in an upper direction of the substrate, wherein at least one internal wall of the ink feedhole has a plurality of steps and inclines with respect to a surface of the substrate.
摘要:
An inkjet printhead includes a substrate in which an ink feed hole is formed, a plurality of ejection devices formed on the substrate at sides of the ink feed hole, a chamber layer stacked on the substrate and in which a plurality of ink chambers, which correspond to the ejection devices and in which ink supplied from the ink feed hole is filled, are formed, and a nozzle layer in which a plurality of nozzles corresponding to the ink chambers are formed, wherein the ink feed hole includes a plurality of through holes formed through the substrate in the thickness direction thereof.
摘要:
An apparatus to sense the temperature of an ink-jet head includes at least one or more CMOS (complementary metal oxide semiconductor) lateral BJTs (bipolar junction transistors) to sense the temperature of the ink-jet head, and a current supply unit to supply a current to the CMOS lateral BJTs. Minimum sized CMOS lateral BJTs are applied to an ink-jet printer head so that precise temperature control can be performed in a shuttle or array type ink-jet printer.