摘要:
Disclosed is a substrate structure for an ejection chip that includes a first substrate layer, a second substrate layer disposed beneath the first substrate layer, and an intermediate layer configured between the first substrate layer and the second substrate layer. The substrate structure also includes a plurality of fluid channels configured within the second substrate layer. Further, the substrate structure includes a plurality of fluid ports configured within the first substrate layer. At least one fluid port of the plurality of fluid ports is configured in alignment with a corresponding fluid channel of the plurality of fluid channels. Furthermore, the substrate structure includes a plurality of slots configured within the intermediate layer such that the at least one fluid port is in fluid communication with the to corresponding fluid channel. Further disclosed is a method for fabricating the substrate structure and an ejection chip employing the substrate structure.
摘要:
Disclosed is a method for fabricating a fluid ejection device. The method includes forming a drive circuitry layer on a substrate. The method further includes fabricating at least one fluid ejection element on the substrate. Furthermore, the method includes forming at least one slot within a top portion of the substrate, and forming at least one fluid feed trench within a bottom portion of the substrate. Each fluid feed trench of the at least one fluid feed trench is in fluid communication with one or more slots of the at least one slot. Additionally, the method includes laminating a flow feature layer and a nozzle plate over the substrate having the at least one slot and the at least one fluid feed trench formed therewithin. Further disclosed is a fluid ejection device fabricated using the aforementioned to method.
摘要:
A method of substantially simultaneously forming at least two fluid supply slots through a thickness of semiconductor substrate from a first surface to a second surface thereof. The method includes the steps of applying a photoresist layer to the first surface of the semiconductor substrate. The photoresist layer is patterned and developed using a gray scale mask for a first fluid supply slot. The semiconductor substrate is then reactive ion etched, to form the at least two fluid supply slots through the thickness of the substrate. The first fluid supply slot is substantially wider than the second fluid supply slot, and the first and second fluid supply slots are etched through the substrate at substantially the same rate.
摘要:
A method for manufacturing an inkjet print cartridge and an inkjet cartridge produced thereby are disclosed. An inkjet print cartridge in accordance with one aspect includes a component of the inkjet print cartridge and an applied adhesive on at least a portion of the component, wherein the applied adhesive is formed from an adhesive having a rheology viscosity ratio ηi/ηmin of from 1.0 to less than 2.1. The method in accordance with one aspect includes applying an adhesive onto at least a portion of a component of an inkjet print cartridge at an application temperature, Tα, and heating the adhesive from an initial temperature, Ti, to a cure temperature for the adhesive, Tc. The adhesive has a rheology cure profile characterized by at least one of the following parameters: a) a rheology viscosity ratio ηi/ηmin of from 1.0 to less than 2.1, b) a temperature of the adhesive is approximately equal to a minimum viscosity temperature for the adhesive, Tηmin, within less than about 10 minutes from the start of the cure cycle, and c) viscosity of the adhesive increases within less than about 5 minutes from the start of the cure cycle.
摘要:
A micro-fluid ejection device structure, a multi-fluid cartridge containing the ejection device structure, and methods for making the ejection device structure and cartridge. The ejection device includes an ejection head substrate having a fluid supply side and a device side and containing two or more fluid flow paths therein for supplying fluid from the fluid supply side to the device side thereof. A multi-channel manifold is attached to the fluid supply side of the ejection head substrate for providing fluid from two or more fluid reservoirs to the fluid flow paths in the ejection head substrate. The multi-channel manifold has fluid flow channels therein in fluid flow communications with the fluid flow paths in the ejection head substrate and the manifold consists essentially of a patterned photoresist material.
摘要:
Disclosed is a method for fabricating a fluid ejection device that includes forming a drive circuitry layer on a substrate and fabricating at least one fluid ejection element on the substrate. Furthermore, the method includes forming at least one slot within a top portion of the substrate, and filling each slot of the at least one slot with a protective material. Additionally, the method includes grinding the substrate from a bottom portion thereof. Moreover, the method includes removing the protective material from the each slot. Further, the method includes depositing a layer of a polymeric bonding material on a bottom surface of the substrate. Furthermore, the method includes attaching a manifold chip to the layer of the polymeric bonding material. The method also includes laminating a flow feature layer and a nozzle plate over the substrate. Further disclosed are an ejection chip and a method for fabricating the ejection chip.
摘要:
Sealing tapes, such as those utilizing an ultra-thin adhesive layer for attaching the sealing tape to the nozzle member of an ink jet printhead. One such ultra-thin adhesive has a thickness of 3 microns or less, and can be applied using pressure or both heat and pressure.
摘要:
A micro-fluid ejection assembly including a silicon substrate having accurately formed fluid paths therein. The fluid paths are formed by a deep reactive ion etching process conducted on a substrate having a surface characteristic before etching selected from the group consisting of a dielectric layer thickness of no more than about 5000 Angstroms, and a substantially dielectric material free pitted surface wherein a root mean square depth of surface pitting is less than about 500 Angstroms and a maximum surface pitting depth is no more than about 2500 Angstroms. Fluid paths in such substrates having improved flow characteristics for more reliable fluid ejection operations.
摘要:
A method of etching a semiconductor substrate. The method includes the steps of applying a photoresist etch mask layer to a device surface of the substrate. A select first area of the photoresist etch mask is masked, imaged and developed. A select second area of the photoresist etch mask layer is irradiated to assist in post etch stripping of the etch mask layer from the select second area. The substrate is etched to form fluid supply slots through a thickness of the substrate. At least the select second area of the etch mask layer is removed from the substrate, whereby mask layer residue formed from the select second area of the etch mask layer is significantly reduced.
摘要:
A method for fabricating a fluid ejection device includes forming a drive circuitry layer on a substrate, fabricating at least one fluid ejection element on a top portion of the substrate, grinding the substrate from a bottom portion of the substrate up to a predetermined height, etching the top portion of the substrate to configure at least one slot within the top portion of the substrate, depositing a layer of an etch-stop material over the top portion of the substrate while filling the at least one slot with the etch-stop material, etching the bottom portion of the substrate to configure at least one fluid feed trench within the bottom portion of the substrate, removing the layer of the etch-stop material from the top portion of the substrate, and laminating a flow feature layer and a nozzle plate as a single unit over the top portion of the substrate.