Method of making a thin-film transducer ink jet head
    2.
    发明授权
    Method of making a thin-film transducer ink jet head 失效
    制造薄膜换能器喷墨头的方法

    公开(公告)号:US5265315A

    公开(公告)日:1993-11-30

    申请号:US615893

    申请日:1990-11-20

    摘要: A thin-film transducer ink jet head is prepared by oxidizing one surface of a silicon wafer to provide a dielectric layer, forming electrodes on the layer by photoresist processing techniques, depositing one or more layers of PZT material to provide a thin-film piezoelectric layer having a thickness in the range of 1-25 microns, forming another pattern of electrodes on the surface of the PZT layer by photoresist techniques, and selectively etching the silicon substrate in the region of the electrodes to provide an ink chamber. Thereafter, an orifice plate is affixed to the substrate to enclose the ink chambers and provide an ink orifice for each of the chambers. An ink jet head having chambers 3.34 mm long by 0.17 mm wide by 0.15 mm deep and orifices spaced by 0.305 mm is provided.

    摘要翻译: 通过氧化硅晶片的一个表面以提供介电层来制备薄膜换能器喷墨头,通过光致抗蚀剂加工技术在该层上形成电极,沉积一层或多层PZT材料以提供薄膜压电层 具有在1-25微米范围内的厚度,通过光致抗蚀剂技术在PZT层的表面上形成另一个电极图案,并且在电极区域中选择性蚀刻硅衬底以提供墨水室。 此后,将孔板固定在基片上,以封闭墨室,并为每个腔室提供墨孔。 具有3.34mm长×0.17mm×0.15mm深的间隙为0.305mm的孔的喷墨头。

    Ink jet head containing a carbon member
    6.
    发明授权
    Ink jet head containing a carbon member 失效
    含有碳素的喷墨头

    公开(公告)号:US06682181B1

    公开(公告)日:2004-01-27

    申请号:US08406297

    申请日:1995-03-17

    IPC分类号: B41J2045

    摘要: In the embodiments of the simplified ink jet head described in the specification, a carbon body is formed with ink passages, such as internal passages extending through a carbon plate, pressure chambers on one side of a carbon plate, flow-through passages on the other side of the same plate and ink supply passages, and a piezoelectric plate is affixed to the pressure chamber side of the carbon plate by a thin layer of epoxy adhesive. The piezoelectric plate may have a conductive coating on one side which is photo-etched to produce an electrode pattern corresponding to the pattern of the pressure chambers in the carbon plate. An orifice plate may have specially profiled orifice openings to assure axial projection of drops and may be affixed by a thin layer of epoxy adhesive to a carbon plate having orifice passages supplying ink from the pressure chambers to the orifices. Since the carbon plate is conductive, it can be used, if desired, as an electrode on the opposite side of the piezoelectric plate and, to assure grounding of the piezoelectric plate, a conductive epoxy adhesive may be used to bond the piezoelectric plate to the carbon plate. Moreover, since the carbon plate is porous, it can provide a communication path between a vacuum source and an air-permeable, ink-impermeable layer on the ink passages to remove dissolved air from the ink in the passages. In one alternative embodiment, an ink jet head assembly contains two separate carbon pressure chamber plates, a carbon manifold plate and a carbon collar to retain the carbon plates in an assembly.

    摘要翻译: 在本说明书中描述的简化喷墨头的实施例中,碳体形成有油墨通道,例如延伸穿过碳板的内部通道,碳板一侧的压力室,另一侧的流通通道 同一板和供墨通道的一侧,并且压电板通过环氧树脂粘合剂的薄层固定在碳板的压力室侧。 压电板可以在一侧上具有导电涂层,其被光蚀刻以产生对应于碳板中的压力室的图案的电极图案。 孔板可以具有特别成型的孔口,以确保液滴的轴向投影,并且可以通过环氧树脂粘合剂的薄层粘附到具有从压力室向孔口供应墨水的孔口的碳板。 由于碳板是导电的,因此如果需要,可以将其用作压电板的相对侧上的电极,并且为了确保压电板的接地,可以使用导电环氧树脂粘合剂将压电板粘合到 碳板。 此外,由于碳板是多孔的,所以可以在墨水通道之间提供真空源和透气性不透墨层之间的连通路径,以从通道中的油墨中除去溶解的空气。 在一个替代实施例中,喷墨头组件包含两个单独的碳压力室板,碳歧管板和碳圈,以将碳板保持在组件中。

    Method of making a perovskite thin-film ink jet transducer
    8.
    发明授权
    Method of making a perovskite thin-film ink jet transducer 失效
    制造钙钛矿薄膜喷墨传感器的方法

    公开(公告)号:US5500988A

    公开(公告)日:1996-03-26

    申请号:US258709

    申请日:1994-06-13

    摘要: In the particular embodiments described in the specification, a thin-film PZT piezoelectric transducer ink jet head is prepared by oxidizing one surface of a silicon wafer to provide a dielectric layer, forming electrodes on the layer by photoresist processing techniques, depositing one or more layers of perovskite-seeded PZT material to provide a thin-film piezoelectric layer having a thickness in the range of 1-25 microns, forming another pattern of electrodes on the surface of the PZT layer by photoresist techniques, and selectively etching the silicon substrate in the region of the electrodes to provide an ink chamber. Thereafter, an orifice plate is affixed to the substrate to enclose the ink chambers and provide an ink orifice for each of the chambers. An ink jet head having chambers 3.34 mm long by 0.17 mm wide by 0.15 mm deep and orifices spaced by 0.305 mm is provided.

    摘要翻译: 在说明书中描述的特定实施例中,薄膜PZT压电换能器喷墨头通过氧化硅晶片的一个表面以提供电介质层来制备,在该层上通过光致抗蚀剂加工技术形成电极,沉积一层或多层 的钙钛矿种子PZT材料,以提供厚度在1-25微米范围内的薄膜压电层,通过光致抗蚀剂技术在PZT层的表面上形成另一个电极图案,并且在 电极的区域以提供墨室。 此后,将孔板固定在基片上,以封闭墨室,并为每个腔室提供墨孔。 具有3.34mm长×0.17mm×0.15mm深的间隙为0.305mm的孔的喷墨头。

    Heat sink having bonded cooling fins
    9.
    发明授权
    Heat sink having bonded cooling fins 失效
    散热片带有冷却散热片

    公开(公告)号:US06520248B2

    公开(公告)日:2003-02-18

    申请号:US09859715

    申请日:2001-05-17

    IPC分类号: H05K720

    摘要: A heat sink has a surface with a plurality of slots having mutually facing sidewalls which converge toward the base of the slot at an angle. Each slot receives an end portion of a cooling fin having sidewalls which converge at the same angle, so that the sidewalls of the slot are at least substantially parallel to the sidewalls of the cooling fin. The slots are preferably machined in the base and the sidewalls on the fins are machined or coined, yielding tolerances which are so close that the gap between parts is less than 60 microinches, and unfilled adhesive can be used. The thinness of the bond provides good thermal conductivity and reduced curing time. It is also possible to, provide the slots with a slightly smaller angle so that the base deforms to accommodate the cooling fin and adhesive may be eliminated.

    摘要翻译: 散热器具有表面,多个槽具有相互面对的侧壁,其以一定角度朝向槽的基部会聚。 每个槽容纳冷却翅片的端部,其具有以相同角度会聚的侧壁,使得槽的侧壁至少基本上平行于冷却翅片的侧壁。 槽优选地在基座中加工并且翅片上的侧壁被加工或制造,产生如此接近的公差,使得部件之间的间隙小于60微英寸,并且可以使用未填充的粘合剂。 键的薄度提供良好的导热性和缩短的固化时间。 也可以为狭槽提供稍微较小的角度,使得基座变形以适应冷却翅片,并且可以消除粘合剂。