摘要:
A method of manufacturing a liquid discharging head includes preparing a wafer provided with an element and a discharge port formation member on a front surface of the wafer, forming a recessed portion in a rear surface of the wafer, attaching the rear surface of the wafer and a dicing tape, cutting the wafer along cutting lines to form an element board, and connecting an electric wiring board and a terminal of the element board. The element board includes a discharge port formation member having a discharge port for discharging liquid and includes the element to supply energy to the discharge port for liquid discharge. The recessed portion is formed at a location corresponding to the cutting lines, and an area of a region where the terminal overlaps the recessed portion is smaller than an area of a region where the terminal does not overlap the recessed portion.
摘要:
A wafer structure is disclosed and includes a chip substrate and at least one inkjet chip having plural ink-drip generators. Each ink-drop generator includes a thermal-barrier layer, a resistance heating layer and a protective layer. The thermal-barrier layer is formed on the chip substrate, the resistance heating layer is formed on the thermal-barrier layer, a part of the protective layer is formed on the resistance heating layer, and the barrier layer is formed on the protective layer. The ink-supply chamber has a bottom in communication with the protective layer, and a top in communication with the nozzle. The thermal-barrier layer has a thickness of 500˜5000 angstroms, the protective layer has a thickness of 150˜3500 angstroms, the resistance heating layer has a thickness of 100˜500 angstroms, the resistance heating layer has a length of 5˜30 microns, and the resistance heating layer has a width of 5˜10 microns.
摘要:
A discharge channel and a non-discharge channel are formed to have a similar shape, that is, to include extension portions and raise-and-cut portions continuing from end portions of both the extension portions, respectively. Then, imparting of a catalyst, washing of an unnecessary catalyst, plating, and the like are performed on a target surface, as a plating step. In an embodiment, an electrode clearance groove is formed after the plating step. Since channel grooves for the discharge channel and the non-discharge channel have a similar shape, it is possible to cause a water flow to uniformly flow in the channels when washing is performed, and thus to avoid an occurrence of a situation in which a lump is formed in the channel groove by plating.
摘要:
A printhead includes a moldable substrate, and a number of printhead dies molded into the moldable substrate. The printhead dies include a number of printhead dies molded into the moldable substrate. The dies comprise a non-rectangular shape. A number of fluid slots are defined in the moldable substrate to fluidically coupled to the printhead dies to feed fluid to the printhead dies. The number of fluid slots is not equal to the number of printhead dies.
摘要:
A piezoelectric element includes a first electrode formed on a substrate, a piezoelectric layer formed on the first electrode and composed of a complex oxide having a perovskite structure containing potassium (K), sodium (Na), niobium (Nb), and manganese (Mn), and a second electrode formed on the piezoelectric layer. The manganese includes divalent manganese (Mn2+), trivalent manganese (Mn3+), and tetravalent manganese (Mn4+), a molar ratio of the divalent manganese to a sum of the trivalent manganese and the tetravalent manganese ((Mn2+/(Mn3++Mn4+)) is 1 or more and 10 or less, and a molar ratio of the potassium to the sodium (K/Na) is 1.1 or less.
摘要:
A piezoelectric element includes a first electrode, a piezoelectric layer formed on the first electrode by a solution method and formed of a perovskite-type composite oxide including potassium, sodium, and niobium, and a second electrode provided on the piezoelectric layer, in which the composite oxide further includes lithium and manganese, the content of lithium is 3 mol % to 5 mol % in the total number of moles of metal in the A site, the content of manganese is 5 mol % or less in the total number of moles of metal in the B site, and a lithium measured intensity (CPS) maximum value in the film thickness direction of the piezoelectric layer in SIMS measurement is less than 2.65 times a minimum value.
摘要:
A piezoelectric element includes a first and a second electrode, a piezoelectric layer between the first electrode and the second electrode, and an orientation control layer between the first electrode and the piezoelectric layer. The orientation control layer contains perovskite complex oxide containing potassium, sodium, calcium, and niobium and preferentially oriented in the (100) plane.
摘要:
A piezoelectric material is expressed as a mixed crystal including a complex oxide having a perovskite structure and a rhombohedral structure and a complex oxide having a perovskite structure and a tetragonal structure, and the molar ratio of the complex oxide having a rhombohedral structure to the complex oxide having a tetragonal structure (rhombohedral crystal/tetragonal crystal) is 0.54 to less than 1.20.
摘要:
A method of manufacturing an ink jet printhead includes: providing a silicon substrate including active ejecting elements; providing a hydraulic structure layer; providing a silicon orifice plate having a plurality of nozzles for ejection of said ink; and assembling the silicon substrate with said hydraulic structure layer and said silicon orifice plate. Providing the silicon orifice plate comprises: providing a silicon wafer having a substantially planar extension delimited by a first and a second surfaces; performing a thinning step at the second surface so as to remove a central portion having a preset height; and forming in the silicon wafer a plurality of through holes, each defining a respective nozzle for ejection of the ink.
摘要:
A portable handheld device includes a CPU for processing a script; a multi-core processor for processing images; and a flash memory connected to the CPU, the flash memory storing therein a table of micro-codes. The multi-core processor includes a plurality of micro-coded processing units. The CPU is configured to read one or more micro-codes from the flash memory and load the one or more micro-codes into the processing unit to execute the script being processed thereby.