Patent application number | Description | Published |
20130141483 | FLUID DISCHARGE HEAD SEMICONDUCTOR DEVICE, FLUID DISCHARGE HEAD, AND FLUID DISCHARGE APPARATUS - A fluid discharge head semiconductor device, comprising a terminal unit including first pad group including a plurality of pads, a processing unit configured to process input information from the first pad group, a printing unit including a plurality of printing elements configured to discharge a printing material in accordance with a result of the processing, and an inspection output unit including second pad group including at least one pad and an output buffer unit, wherein the processing unit outputs information on an inspection of an operation to the inspection output unit, and the inspection output unit drives the output buffer unit to output the information to the second pad group when performing an inspection, and suppresses the driving of the output buffer unit when performing printing. | 06-06-2013 |
20140132655 | SEMICONDUCTOR DEVICE, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD CARTRIDGE, AND PRINTING APPARATUS - A semiconductor device for controlling discharge of a liquid includes a power supply terminal, a ground terminal, driving portions arranged along a straight line between the power supply terminal and the ground terminal to discharge a liquid, a power supply line extending along the straight line from the power supply terminal to supply a power supply voltage to the driving portions, and a ground line extending along the straight line from the ground terminal to supply a ground voltage to the driving portions. A width of the power supply line in a direction perpendicular to the straight line continuously or gradually decreases away from the power supply terminal, and a width of the ground line in the direction continuously or gradually decreases away from the ground terminal. | 05-15-2014 |
20140139590 | SEMICONDUCTOR DEVICE, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE CARTRIDGE, AND LIQUID DISCHARGE APPARATUS - A semiconductor device includes unit circuits arranged in a first direction, a bonding pad, and electrically conductive patterns configured to connect the unit circuits to the bonding pad. Each of the electrically conductive patterns includes a first portion connected to the bonding pad and extending in the first direction, and a second portion connected to the corresponding unit circuit. The electrically conductive patterns include a first type pattern in which the first portion is positioned on a first side of the second portion in a view from the first direction, and a second type pattern in which the first portion is positioned on a second side, which is opposite to the first side, of the second portion in a view from the first direction. | 05-22-2014 |
20140375711 | PRINTING ELEMENT SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS - A printing element substrate, comprising a plurality of units configured to print on a printing medium based on print data, each of the plurality of units, including a printing element configured to print on the printing medium, a first transistor configured to operate as a source follower upon receiving a voltage at a gate terminal of the first transistor, and supply a current to the printing element, and a second transistor configured to control supply of the current to the printing element in response to a control signal input to a gate terminal of the second transistor. | 12-25-2014 |
20150138279 | PRINTHEAD SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS - A printhead substrate comprising a plurality of printing portions and a plurality of ink supply ports, wherein the plurality of printing portions are divided into a plurality of groups, and the plurality of ink supply ports are arranged so as to correspond to the plurality of groups respectively, the printhead substrate also comprises a plurality of first voltage wiring portions provided in correspondence with the plurality of groups, and each first voltage wiring portion includes a first wiring pattern configured to connect the first terminals of the respective printing portions in the corresponding group with each other, and a second wiring pattern connected to the first wiring pattern and arranged between an ink supply port in the corresponding group and its neighboring ink supply port. | 05-21-2015 |
20150273824 | LIQUID DISCHARGE SUBSTRATE, LIQUID DISCHARGE HEAD, AND RECORDING DEVICE - A liquid discharge substrate includes a plurality of discharge elements disposed on a substrate, a first transistor electrically connected to the plurality of discharge elements, and a plurality of second transistors. The first transistor is disposed between the plurality of discharge elements and the plurality of second transistors. | 10-01-2015 |
20150283807 | SEMICONDUCTOR DEVICE, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE CARTRIDGE, AND LIQUID DISCHARGE APPARATUS - A semiconductor device for a liquid discharge head is provided. The device includes first and second electrodes, discharge elements configured to give energy to a liquid, first switching elements configured to electrically connect first terminals of discharge elements to the first electrode, and including one or more first switching elements each connected to two or more discharge elements, and second switching elements configured to electrically connect second terminals of the plurality of discharge elements to the second electrode, and including one or more second switching element each connected to two or more discharge elements. Two or more discharge elements connected to a same second switching element are connected to different first switching elements. | 10-08-2015 |
20150314597 | LIQUID DISCHARGE SUBSTRATE, LIQUID DISCHARGE HEAD, AND PRINTING APPARATUS - A liquid discharge substrate according to an embodiment of the present invention includes a plurality of heating elements, a plurality of driving elements, a signal supplying unit which supplies a control signal used to control the plurality of driving elements, and a plurality of delay circuits which delay the control signal. A delay amount of a first delay circuit is different from a delay amount of a second delay circuit. | 11-05-2015 |