Inkjet wafer identification circuit

Abstract

An ink jet wafer identification circuit comprises a plurality of identification circuit modules, and further comprises a power supply end; the first control end is coupled with the power supply end, and the power supply end is used for controlling the first control end to be opened and closed; the data end is coupled with the first control end; the second control end is coupled with the first control end and controls the second control end to be opened and closed; the identification signal end is used for transmitting an identification signal; the fuse is coupled with the identification signal end and the second control end; and the grounding end is arranged in the identification circuit module. When the data end and the power supply end provide high voltage, the first control end and the second control end are both started, the identification signal end can read a state signal indicating whether the ink is greened or not, the identification circuit module is suitable for printing ink jet wafers with the printing range between 23900 micrometers and 27000 micrometers, and the number of elements of the identification signal end is integer multiples of that of the data end.

Description

Technical Field

[0001] The present invention relates to an inkjet chip identification circuit. More specifically, it provides a novel inkjet chip identification circuit that not only can match the inkjet chip with the printer, but also can simplify the number of identification signal components and reduce the risk of inkjet chip packaging failure. Background Art

[0002] Inkjet printing, commonly referred to as "inkjet printing," is a widely used printing technology with a history dating back to the 1950s, when British company Hewlett-Packard invented inkjet printing. Since then, inkjet printing technology has developed rapidly, making inkjet printers a mainstream technology for home and commercial printing. Inkjet printers offer many advantages, including: low cost, especially for home and small business use; high print quality, providing high-resolution and high-quality images, especially for photos and graphics; and ease of use. Inkjet printers are easy to install, and most inkjet printers can print from computers or mobile devices. When combined with the recent rise of all-in-one printers (including fax, photocopying, and scanning), they can rapidly expand the flexibility of office paperwork.

[0003] See also Figure 1 The inkjet chip identification circuit in an inkjet printer is a crucial component in inkjet printing technology. Each type of inkjet printer's ink cartridge 10 requires a corresponding inkjet head. Furthermore, each inkjet head has its own unique specifications, including structure, ink used, number of nozzles, and control circuitry. Therefore, a compatible printing system is required to ensure the coordinated operation of the inkjet chip identification circuit and the inkjet printer. Specifically, the inkjet chip identification circuit is located within the inkjet chip 100 and includes fuses, transistor reverse fuses, and related circuit components. It stores information including, but not limited to, the ink cartridge serial number, ink type, ink capacity, ink color, and inkjet head-printer matching information to ensure printing quality and efficiency.

[0004] See also Figure 2A and Figure 2B, which describes the existing known technology, in which the inkjet chip recognition circuit includes components such as the recognition signal terminal 200, the fuse 210, the transistor device 220, the data terminal 230, and the ground terminal 240. In more detail, when the data terminal 230 provides a high potential, the transistor device 220 will be in a conductive state, and at the same time, if the recognition signal terminal 200 provides a low potential, the inkjet chip recognition circuit will not perform the burning action; on the other hand, when the data terminal 230 provides a high potential, the transistor device 220 will be in a conductive state, and at the same time, if the recognition signal terminal 200 provides a burning potential (high potential), the inkjet chip recognition circuit will perform the burning, and at this time the fuse 210 will be blown, as shown in FIG. Figure 2B When reading from the inkjet chip identification circuit, if the data terminal 230 provides a high voltage, the transistor device 220 will be in the on state. At this time, if the identification signal terminal 200 reads an unburned fuse 210, it will read a low voltage. Conversely, if the fuse 210 is burned, it will read a high voltage. In this way, the inkjet chip identification circuit can control whether the fuse 210 is blown to transmit a high or low voltage transmission signal to record the information in each bit of the inkjet chip identification circuit. By determining the binary data (0 or 1) formed by the high or low voltage output by each bit of the inkjet chip identification circuit, the matching function between the inkjet head and the inkjet printer can be achieved.

[0005] However, the above-mentioned inkjet wafer recognition circuit still includes some disadvantages. Although recording information by burning or not burning the fuse 210 can indeed output a signal with a high or low voltage, the increasing functionality of inkjet printers and the amount of information they contain make relying solely on the fuse 210 insufficient for matching the inkjet head with the inkjet printer. Furthermore, increasing the number of fuses 210 in the inkjet chip identification circuit to record more bits of data also increases the number of components required to control the burning and reading of the fuses 210, such as the identification signal terminal 200, transistor device 220, data terminal 230, and ground terminal 240. This increases the complexity of the inkjet chip identification circuit, making the manufacturing and packaging of the inkjet chip 100 increasingly difficult, and risks a low manufacturing yield or an increased failure rate during packaging. Clearly, in the current market, how to simplify the components of the inkjet chip identification circuit while increasing the amount of information it can store and maintaining its compatibility with printers has become a topic of discussion in the current market and in the present invention. Summary of the Invention

[0006] Based on the above reasons, the present invention proposes a novel inkjet chip identification circuit and installs it in the inkjet chip. By simplifying its data terminal, it can control the burning and blowing of multiple fuses by a single data terminal, simplifying the identification circuit structure in the conventional art, and improving the yield problem in the production and packaging process of inkjet chips. At the same time, the data terminal in the present invention can control the burning status of multiple fuses, and the bit information recorded can be increased. It can also make the stored information including the ink cartridge serial number, identification code, ink type, ink capacity, ink color, number of nozzles, manufacturing date, factory date, ink cartridge capacity change (ink capacity), and the number of times the ink cartridge has been used on the machine more detailed and complete, thereby achieving the purpose of the present invention. In addition, according to the viewpoint of the present invention, the proposed inkjet chip identification circuit is also applicable to large-area printing, that is, the identification and storage of related information for printing areas between 23900μm and 27000μm, which invisibly expands the scope of application of the present invention. Based on the above objectives, the present invention provides a circuit architecture for the above-mentioned inkjet chip identification circuit, and its detailed technical solution is described in detail below.

[0007] Based on the above, the present invention provides a novel inkjet chip identification circuit, including: multiple identification circuit modules, the identification circuit module further has: a power supply end; a first control end, coupled to the power supply end, controlling the opening and closing of the first control end by the power supply end; a data end, coupled to the first control end; a second control end, coupled to the first control end, controlling the opening and closing of the second control end; at least one identification signal end, transmitting an identification signal; a fuse, coupling the identification signal end and the second control end; and a ground end, arranged in the identification circuit module, providing grounding protection; wherein, when the first control end and the second control end are both turned on, the identification circuit module outputs a status signal indicating whether the ink is burned green or not, and the identification circuit module is suitable for inkjet chips with a printing range between 23900μm-27000μm, and the number of elements of the identification signal end is an integer multiple of the data end.

[0008] According to the present invention, the identification circuit module includes an electrical control resistor coupled to the first control terminal, thereby adjusting the magnitude of the current and voltage in the identification circuit module according to application requirements.

[0009] According to the present invention, the inkjet chip includes a plurality of nozzles, and the nozzles are arranged on the inkjet chip to form a double-row parallel structure, a double-row staggered structure, or a single-row structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following detailed description of the present invention and the schematic diagrams of the embodiments should enable a more complete understanding of the present invention; however, it should be understood that this is only a reference for understanding the application of the present invention, rather than limiting the present invention to a specific embodiment.

[0011] Figure 1 The structure of a known ink cartridge and the arrangement of an inkjet chip are described.

[0012] Figure 2A Describe the component structure of a known inkjet chip identification circuit before burning.

[0013] Figure 2B The component structure of a known inkjet chip identification circuit after burning is described.

[0014] Figure 3A The component structure of the identification circuit module before burning in the present invention is described.

[0015] Figure 3B The component structure of the identification circuit module after programming in the present invention is described.

[0016] Figure 3C The present invention describes how an array composed of multiple identification circuit modules can be controlled by an identification signal to perform programming on the multiple identification circuit modules.

[0017] Figure 4A The double-row parallel nozzle structure of the inkjet chip is described.

[0018] Figure 4B The double-row, parallel nozzle structure of the inkjet chip is illustrated.

[0019] Figure 4C The double-row staggered nozzle structure of the inkjet chip is described.

[0020] Figure 4D Illustration of the double-row staggered nozzle structure of the inkjet chip.

[0021] Figure 4E The single-row nozzle structure of the inkjet chip is described.

[0022] Figure 4F Describes the nozzle structure of a single row of details on an inkjet chip.

[0023]

Explanation of symbols

[0024] 10: Ink cartridge

[0025] 100: Inkjet chip

[0026] 200: Identify signal terminal

[0027] 210: Fuse

[0028] 220: Transistor devices

[0029] 230: Data terminal

[0030] 240: Ground terminal

[0031] 30: Inkjet chip identification circuit

[0032] 300: Identify circuit module

[0033] 310: Data terminal

[0034] 320: Power supply

[0035] 330: Electrically controlled resistance

[0036] 340: First control terminal

[0037] 350: Identify signal terminal

[0038] 360: Fuse

[0039] 370: Second control terminal

[0040] 380: Ground terminal

[0041] 380A: First ground terminal

[0042] 380B: Second ground terminal

[0043] 400: Inkjet chip

[0044] 410: Spray hole

[0045] 420: ink supply hole DETAILED DESCRIPTION

[0046] The present invention will be described in detail with preferred embodiments and viewpoints. The following description provides specific implementation details of the present invention so that the reader can thoroughly understand how these embodiments are implemented. However, those skilled in the art in this field must understand that the present invention can also be implemented without these details. In addition, the present invention can also be used and implemented through other specific embodiments. The various details described in this specification can also be applied based on different needs and various modifications or changes can be made without departing from the spirit of the present invention. Therefore, the present invention will be described with preferred embodiments and viewpoints. Such descriptions are to explain the structure of the present invention and are only used to illustrate rather than to limit the scope of the patent application of the present invention. The terms used in the following description will be interpreted in the broadest reasonable way so that they can be used together with the detailed description of a specific embodiment of the present invention. Those skilled in the art can adjust or modify the structure of the present invention according to the conditions of manufacturing and application so that it can meet the needs of the actual industry.

[0047] See also Figure 3A 、 Figure 3B ,as well as Figure 3C The present invention provides a novel inkjet chip identification circuit 30, which can be set on an inkjet chip 400, including: a plurality of identification circuit modules 300, wherein the identification circuit module 300 further has: a power supply end 320; a first control end 340, coupled to the power supply end 320, and controlled by the power supply end 320 to open and close the first control end 340; a data end 310, coupled to the first control end 340; a second control end 370, coupled to the first control end 340 to control the opening and closing of the second control end 370; at least one identification signal The signal terminal 350 transmits an identification signal; the fuse 360 ​​couples the identification signal terminal 350 and the second control terminal 370; and the ground terminal 380 is arranged in the identification circuit module 300 to provide grounding protection; wherein, when the first control terminal 340 and the second control terminal 370 are both turned on, the identification circuit module 300 outputs a status signal indicating whether it is burned green or not, and the identification circuit module 300 is suitable for an inkjet chip 400 with a printing range between 23900μm-27000μm, and the number of elements of the identification signal terminal 350 is an integer multiple of the number of elements of the data terminal 310.

[0048] According to an embodiment of the present invention, the mechanism of operation of the identification circuit module 300 disclosed above is that when a data signal is input through the data terminal 310 and a power is input through the power supply terminal 320, when the power is at a high voltage, the first control terminal 340 will be turned on and turned on. At the same time, the data signal will be transmitted to the second control terminal 370, causing the second control terminal 370 to be turned on and turned on. At the same time, if the identification signal terminal 350 provides an identification signal, and the identification signal is at a high voltage, it will cause the fuse 360 ​​to start burning and melting, causing the identification circuit module 300 to be turned on. Figure 3A The unburned state in Figure 3B When the power supply terminal 320 does not provide power (or the power provided is low voltage), the first control terminal 340 will not be turned on (will not be turned on), and the data signal will not be transmitted to the second control terminal 370 through the first control terminal 340. Therefore, when the first control terminal 340 is not turned on, the above-mentioned programming process will not be executed.

[0049] According to an embodiment of the present invention, at any time, to read and output the status signal of the identification circuit module 300, the identification signal provided by the identification signal terminal 350 is used for determination. The determination condition is that when the identification signal is low, the identification signal terminal 350 outputs current, indicating low resistance. If the fuse 360 ​​is not blown, the identification signal terminal 350 outputs current, indicating high resistance. If the fuse 360 ​​is blown, the identification signal terminal 350 outputs no current, indicating high resistance. Thus, the printer generates binary data based on whether the current outputted by the identification signal terminal 350 is high resistance or low resistance, thereby providing printer-matched functionality. It should be noted that the high resistance or low resistance can be set to 0 / 1 or 1 / 0, respectively, depending on the application. The foregoing description is for illustrative purposes only and is not intended to limit the scope of the present invention.

[0050] See also Figure 3C According to an embodiment of the present invention, a plurality of identification circuit modules 300 can be arranged on an inkjet chip 400 to form an array, wherein the data terminal 310 can be an input port of a data signal, and the input port is connected to an input signal terminal of an external control chip (not shown), and the data terminal 310 of each column can receive the input signal terminal of the same external control chip, that is, in the same column, for example, A1 receives the input signal of the same input signal terminal, A2 receives the input signal of another input signal terminal...An receives the input signal of yet another input signal terminal, so compared with the traditional In the conventional technology, each data terminal 230 can only control the same fuse 210, identification signal terminal 200, and transistor device 220. In the present invention, only the same input signal needs to be input to the input signal terminal of the external control chip. This input signal is converted into a data signal through the data terminal 310 and transmitted to the inkjet chip identification circuit 30, thereby controlling the burning function of multiple identification circuit modules 300 in the same column. The result is that the number of components of the aforementioned identification signal terminal 350 is an integer multiple of the data terminal 310, thereby achieving the goal of simplifying the components of the inkjet chip identification circuit 30.

[0051] According to an embodiment of the present invention, the array structure formed by the multiple identification circuit modules 300 records, but is not limited to, information required for matching with the printer, such as the corresponding ink cartridge serial number, identification code, ink type, ink capacity, ink color, number of nozzles, manufacturing date, factory date, ink cartridge capacity change (ink capacity), and the number of times the ink cartridge has been used on the printer, thereby enabling the printer to identify the matching information of the ink cartridge.

[0052] According to the present invention, the identification circuit module 300 includes an electrical control resistor 330 coupled to the first control terminal 340 to adjust the magnitude of the current and voltage in the identification circuit module 300 according to application requirements.

[0053] According to the present invention, the ground terminal 380 includes a first ground terminal 380A coupled to the first control terminal 340 to provide ground protection.

[0054] According to the present invention, the ground terminal 380 includes a second ground terminal 380B coupled to the second control terminal 370 to provide ground protection.

[0055] See also Figure 4A 、 Figure 4B 、 Figure 4C 、 Figure 4D 、 Figure 4E ,as well as Figure 4F In order to achieve the aforementioned purpose of improving printing performance, the inkjet chip identification circuit 30 proposed by the present invention is disposed on an inkjet chip 400. The inkjet chip 400 includes nozzles 410 and ink supply holes 420. The arrangement of the nozzles 410 can be selected from a double-row parallel structure, a double-row staggered structure, or a single-row structure. Figure 4A 、 Figure 4B In one embodiment of the present invention, the plurality of nozzles 410 form a double-row parallel structure on the surface of the inkjet wafer 400 (the double-row parallel structure is on the same Y axis, and can be used to print the same printing point twice by the left and right rows of nozzles 410, so that the printed color is bright and full); in another embodiment of the present invention, please refer to Figure 4C 、 Figure 4D The double-row staggered structure shown (the double-row staggered structure can make the printing color bright and full); and in another embodiment of the present invention, refer to Figure 4E 、 Figure 4F The single-row structure shown; wherein in the double-row parallel structure, the vertical distance between two longitudinally adjacent nozzle holes 410 in a single row is 40μm-45μm, and in the double-row staggered structure, the vertical distance between two transversely staggered adjacent nozzle holes 410 is 40μm-45μm, and in the single-row structure, the vertical distance between any two longitudinally adjacent nozzle holes 410 in the single row is 40μm-45μm. In addition, in the above-mentioned embodiments, the width of the ink supply hole 420 is 80μm or more (that is, the width of the ink supply hole 420 is ≥80μm).

[0056] In summary, the present invention proposes an inkjet chip identification circuit configuration structure that allows a single data terminal to control the burning and blowing of multiple fuses, simplifying the identification circuit structure in conventional technology and improving the yield problem in the production and packaging process of inkjet chips. Furthermore, the data terminal in the present invention can control the burning status of multiple fuses, thereby increasing the bit information recorded. The inkjet chip identification circuit can also be applied to inkjet chips with a large inkjet printing range, thereby expanding the scope of application of the present invention. The above content of the present invention is subject to various modifications by those skilled in the art, without detracting from the rights protected by the attached patent claims.

Claims

1. An inkjet chip identification circuit, configured on an inkjet chip, comprising: A plurality of identification circuit modules, the plurality of identification circuit modules further comprising: a power supply terminal for supplying power; a first control terminal coupled to the power supply terminal to control the opening and closing of the first control terminal; a data terminal coupled to the first control terminal for transmitting a data signal; a second control terminal coupled to the first control terminal, and configured to control the second control terminal to be turned on or off by the power; At least one identification signal terminal; a fuse, coupling the at least one identification signal terminal and the second control terminal; and A ground terminal, providing grounding protection; When the first control terminal and the second control terminal are turned on, the multiple identification circuit modules output a status signal, the printing range of the inkjet chip is between 23900μm-27000μm, and the number of components of the at least one identification signal terminal is an integer multiple of the data terminal.

2. The inkjet wafer identification circuit as described in claim 1, wherein the data terminal inputs a data signal and when the power is a high voltage, the second control terminal is turned on, and the at least one identification signal terminal provides an identification signal. When the identification signal is a high voltage, the fuse will be blown. 3 . The inkjet wafer identification circuit as claimed in claim 1 , wherein the fuse will not be blown when the power is zero or low voltage.

4. The inkjet wafer recognition circuit as claimed in claim 1, wherein the plurality of recognition circuit modules further comprise an electrical control resistor coupled to the first control terminal to adjust the magnitude of the current and voltage in the plurality of recognition circuit modules. 5 . The inkjet wafer identification circuit as claimed in claim 1 , wherein the ground terminal comprises a first ground terminal coupled to the first control terminal to provide ground protection. 6 . The inkjet wafer identification circuit as claimed in claim 1 , wherein the ground terminal comprises a second ground terminal coupled to the second control terminal to provide ground protection. 7 . The inkjet wafer recognition circuit as claimed in claim 1 , wherein the plurality of recognition circuit modules are adapted to the inkjet wafer and the nozzle holes are arranged in a double-row parallel structure. 8 . The inkjet wafer recognition circuit as claimed in claim 1 , wherein the plurality of recognition circuit modules are adapted to the inkjet wafer and the nozzle holes are arranged in a double-row staggered structure. 9 . The inkjet wafer recognition circuit as claimed in claim 1 , wherein the plurality of recognition circuit modules are adapted to the inkjet wafer and the nozzle holes are arranged in a single row structure.

10. The inkjet chip identification circuit as described in claim 1, wherein the multiple identification circuit modules record the ink cartridge serial number, identification code, ink type, ink capacity, ink color, number of nozzles, manufacturing date, factory date, ink cartridge capacity change (ink capacity), information about the ink cartridge being installed on the machine, or any combination thereof.

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