公开(公告)号：US4774530A

公开(公告)日：1988-09-27

申请号：US115271

申请日：1987-11-02

申请人： William G. Hawkins

发明人： William G. Hawkins

IPC分类号： B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  G01D15/16

CPC分类号： B41J2/1404 ,  B41J2002/14379

摘要： An improved ink jet printhead is disclosed which comprises an upper and a lower substrate that are mated and bonded together with a thick insulative layer sandwiched therebetween. One surface of the upper substrate has etched therein one or more grooves and a recess which, when mated with the lower substrate, will serve as capillary-filled ink channels and ink supplying manifold respectively. The grooves are open at one end and closed at other end. The open ends will serve as the nozzles. The manifold recess is adjacent the groove closed ends. Each channel has a heating element located upstream of the nozzle. The heating elements are selectively addressable by input signals representing digitized data signals to produce ink vapor bubbles. The growth and collapse of the bubbles expel ink droplets from the nozzles and propel them to a recording medium. Recesses patterned in the thick layer expose the heating elements to the ink, thus placing them in a pit, and provide a flow path for the ink from the manifold to the channels by enabling the ink to flow around the closed ends of the channels, thereby eliminating the fabrication steps required to open the groove closed ends to the manifold recess, so that the printed fabrication process is simplified.

摘要翻译： 公开了一种改进的喷墨打印头，其包括上和下基板，其被夹在其间的厚的绝缘层配合并结合在一起。 上基板的一个表面在其中蚀刻有一个或多个槽和凹槽，当与下基板配合时，凹槽将分别用作毛细管填充的墨通道和供墨歧管。 槽在一端敞开，另一端封闭。 开口端将作为喷嘴。 歧管凹槽与槽封闭端相邻。 每个通道具有位于喷嘴上游的加热元件。 加热元件可以通过表示数字化数据信号的输入信号来选择寻址，以产生油墨蒸气泡。 气泡的生长和坍塌从喷嘴中排出墨滴并推动它们到记录介质上。 图案化在厚层中的凹陷将加热元件暴露于墨水，从而将它们放置在凹坑中，并且通过使墨水能够围绕通道的封闭端流动从而提供从歧管到通道的墨水的流动路径，由此 消除了将凹槽闭合端部打开到歧管凹槽所需的制造步骤，使得印刷的制造工艺简化。

公开(公告)号：USRE32572E

公开(公告)日：1988-01-05

申请号：US947020

申请日：1986-12-29

申请人： William G. Hawkins ,  Donald J. Drake ,  Michael R. Campanelli

发明人： William G. Hawkins ,  Donald J. Drake ,  Michael R. Campanelli

IPC分类号： B41J2/16

CPC分类号： B41J2/1623 ,  B41J2/1604 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1642

摘要： Several fabricating processes for ink jet printheads are disclosed, each printhead being composed of two parts aligned and bonded together. One part is a substantially flat substrate which contains on the surface thereof a lineal array of heating elements and addressing electrodes, and the second part is a substrate having at least one recess anisotropically etched therein to serve as an ink supply manifold when the two parts are bonded together. A lineal array of parallel grooves are formed in the second part, so that one end of the grooves communicate with the manifold recess an the other ends are open for use as an ink droplet expelling nozzles. Many printheads can be made simultaneously by producing a plurality of sets of heating elements array with their addressing electrodes on a silicon wafer and by placing alignment marks thereon at predetermined locations. A corresponding plurality of sets of channels and associated manifolds are produced in a second silicon wafer and, in one embodiment, alignment openings are etched thereon at predetermined locations. The two wafers are aligned via the alignment openings and alignment marks, then bonded together and diced into many separate printheads. A number of printheads can be fixedly mounted in a pagewidth configuration which confronts a moving recording medium for pagewidth printing or individual printheads may be adapted for carriage type ink jet printing.

公开(公告)号：US07158823B2

公开(公告)日：2007-01-02

申请号：US09782331

申请日：2001-02-13

申请人： William G. Hawkins

发明人： William G. Hawkins

IPC分类号： A61B6/00

CPC分类号： G06T11/005 ,  G06T2211/436

摘要： A nuclear camera (10) includes a plurality of detector heads (12) which have collimators (14) for fixing the trajectory along which radiation is receivable. A rotating gantry (22) rotates the detector heads around the subject collecting less than 360° of data, e.g., 204° of data. A zero-filling processor (50) generates zero-filled projection views such that the actually collected projection views and the zero-filled projection views span 360°. A smoothing processor (56) smooths an interface between the zero-filled and actually collected projection views. The zero-filled and smoothed views are Fourier transformed (60) into frequency space, filtered with a stationary deconvolution function (62), and Fourier transformed (64) back into real space. The resolution recovered projection data sets in real space are reconstructed by a reconstruction processor (68) into a three-dimensional image representation for storage in an image memory (70).

摘要翻译： 核相机（10）包括多个检测器头（12），其具有用于固定可接收辐射的轨迹的准直器（14）。 旋转台架（22）使检测器头围绕收集小于360°数据的对象旋转，例如204°的数据。 零填充处理器（50）产生零填充投影视图，使得实际收集的投影视图和零填充投影视图跨越360°。 平滑处理器（56）平滑零填充和实际收集的投影视图之间的界面。 零填充和平滑视图被傅里叶变换（60）到频率空间中，用静态去卷积函数（62）滤波，并且傅立叶变换（64）回到真实空间。 在实际空间中恢复的投影数据组由重构处理器（68）重建为三维图像表示以存储在图像存储器（70）中。

公开(公告)号：US06719388B2

公开(公告)日：2004-04-13

申请号：US09683530

申请日：2002-01-16

申请人： Juan J. Becerra ,  William G. Hawkins ,  Christopher R. Morton ,  Yungran Choi

发明人： Juan J. Becerra ,  William G. Hawkins ,  Christopher R. Morton ,  Yungran Choi

IPC分类号： H03K19007

CPC分类号： B41J2/0451 ,  B41J2/04511 ,  B41J2/04545 ,  B41J2/04546 ,  B41J2/0458

摘要： A method and Apparatus for protection of semiconductor micromechanical devices that use circuits with dynamic logic addressing is disclosed. In one exemplary embodiment of the invention, a fail-safe circuit is provided for an ink jet print head integrated circuit which prevents a catastrophic consequence of the dynamic logic addressed integrated circuit losing its charge.

摘要翻译： 公开了一种用于保护使用具有动态逻辑寻址的电路的半导体微机械器件的方法和装置。 在本发明的一个示例性实施例中，为喷墨打印头集成电路提供故障保护电路，其防止动态逻辑寻址集成电路丢失其电荷的灾难性后果。

公开(公告)号：US5742307A

公开(公告)日：1998-04-21

申请号：US786067

申请日：1997-01-21

申请人： Thomas E. Watrobski ,  William G. Hawkins ,  Sophie V. Vandebroek

发明人： Thomas E. Watrobski ,  William G. Hawkins ,  Sophie V. Vandebroek

IPC分类号： B41J2/05 ,  B41J2/14 ,  B41J2/16

CPC分类号： B41J2/04565 ,  B41J2/0458 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2/04593 ,  B41J2/14072 ,  B41J2/14129 ,  B41J2/1601 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2202/03 ,  B41J2202/13 ,  B41J2202/20

摘要： A method for electrical tailoring of thermal ink jet heater elements. The resistance of ink-jet heater elements formed of polysilicon is changed by applying energy through the resistor element of varying amounts at varying pulse widths. The application of pulsed current for up to 1 second total pulse width at voltages of up to 50 volts decreases the resistance by as much as thirty percent or more of the as fabricated values.

摘要翻译： 一种用于热喷墨加热器元件的电剪裁的方法。 由多晶硅形成的喷墨加热器元件的电阻通过以变化的脉冲宽度通过电阻元件施加不同量的能量来改变。 脉冲电流在高达50伏的电压下施加高达1秒的总脉冲宽度可将电阻降低多达百分之三十以上的制造值。

公开(公告)号：US5223853A

公开(公告)日：1993-06-29

申请号：US840239

申请日：1992-02-24

申请人： Joseph J. Wysocki ,  William G. Hawkins ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Joseph F. Stephany ,  Thomas A. Tellier ,  Thomas E. Watrobski

发明人： Joseph J. Wysocki ,  William G. Hawkins ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Joseph F. Stephany ,  Thomas A. Tellier ,  Thomas E. Watrobski

IPC分类号： B41J2/05 ,  B41J2/125 ,  G01D15/18

CPC分类号： B41J2/04541 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/04593 ,  B41J2/2128

摘要： A system controls an ink jet printing apparatus for propelling ink jet droplets on demand from a printhead having a plurality of drop ejectors. In the printhead, each ejector includes a heating element actuable in response to electrical input signals, each input signal having an amplitude and a time duration, selectably applied to the heating element to produce a temporary vapor bubble and cause a quantity of ink to be emitted for the creation of a mark on a copy sheet. The temperature of ink in the printhead is sensed, and a combination of power level and time duration of the electrical input signal for the heating element to result in a desired size of the mark of the copy sheet is selected, by entering the sensed temperature of the ink into a predetermined function relating the energy of the electrical input signal to the corresponding resulting size of the mark on the copy sheet.

摘要翻译： 系统控制喷墨打印设备，用于根据需要从具有多个液滴喷射器的打印头推进喷墨滴。 在打印头中，每个喷射器包括可响应于电输入信号而致动的加热元件，每个输入信号具有可选择地施加到加热元件的振幅和持续时间，以产生暂时的蒸汽气泡并导致一定量的墨水被排出 用于在复印纸上创建标记。 感测到打印头中的墨水的温度，并且通过输入检测到的温度来选择加热元件的电输入信号的持续时间的组合以产生所需的复印纸的标记尺寸 油墨成为将电输入信号的能量与复印纸上的标记的相应结果尺寸相关联的预定功能。

公开(公告)号：US5030971A

公开(公告)日：1991-07-09

申请号：US442574

申请日：1989-11-29

申请人： Donald J. Drake ,  William G. Hawkins

发明人： Donald J. Drake ,  William G. Hawkins

IPC分类号： B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J2/21

CPC分类号： B41J2/2103 ,  B41J2/14072 ,  B41J2/14129 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1642

摘要： A multi-color roofshooter type thermal ink jet printhead includes a common heater substrate having at least two arrays of heating elements and a corresponding number of elongated feed slots, each heater array being located adjacent its corresponding feed slot. A common channel substrate is layered above a heater substrate and includes arrays of nozzles corresponding in number to the arrays of heating elements, each nozzle array communicating with one of the feed slots on the heater substrate. Each nozzle array is isolated from an adjacent nozzle array and each nozzle of each nozzle array is aligned above a respective heating element of a corresponding heater array. Each of the heater arrays is individually addressed and driven by switching circuitry located on the heater substrate adjacent to its corresponding heater array. The switching circuitry can be active driver matrices corresponding in number to the arrays of heating elements. The locations of the driver matrices preferably alternate with locations of the feed slots. With this construction, multi-color printheads can be efficiently arranged on a single wafer, so that silicon real estate is conserved. The switching circuitry can also be used to address an array of heating elements in a mono-color thermal inkjet printhead. In a preferred embodiment, inputs of the switching circuitry extend from sides of the switching circuitry whereby distances between adjacent feed slots are minimized.

摘要翻译： 多色屋顶拍摄型热喷墨打印头包括具有至少两个加热元件阵列和相应数量的细长进给槽的公共加热器基板，每个加热器阵列位于其相应的进料槽附近。 公共通道基板层叠在加热器基板的上方，并且包括与加热元件阵列相对应的喷嘴阵列，每个喷嘴阵列与加热器基板上的一个进料槽连通。 每个喷嘴阵列与相邻的喷嘴阵列隔离，并且每个喷嘴阵列的每个喷嘴对准在相应加热器阵列的相应加热元件的上方。 每个加热器阵列由位于加热器基板上的与其对应的加热器阵列相邻的切换电路单独寻址和驱动。 开关电路可以是与加热元件阵列相对应的有源驱动器矩阵。 驱动器矩阵的位置优选地与馈送槽的位置交替。 利用这种结构，可以将多色打印头有效地布置在单个晶片上，从而保持硅的空间。 开关电路还可用于解决单色热喷墨打印头中的加热元件阵列。 在优选实施例中，开关电路的输入从开关电路的侧面延伸，从而相邻进料槽之间的距离最小化。

公开(公告)号：US5006202A

公开(公告)日：1991-04-09

申请号：US533204

申请日：1990-06-04

申请人： William G. Hawkins ,  Donald J. Drake ,  James F. O'Neill

发明人： William G. Hawkins ,  Donald J. Drake ,  James F. O'Neill

IPC分类号： B41J2/16 ,  B81B1/00 ,  C23F1/00 ,  C23F1/02 ,  H01L21/302 ,  H01L21/306 ,  H01L21/3065 ,  H01L21/308

CPC分类号： B41J2/1642 ,  B41J2/1601 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1645 ,  B81B1/004 ,  B81C1/00896 ,  H01L21/30608 ,  H01L21/3085 ,  B81B2201/052 ,  B81C2201/053

摘要： Disclosed is a method of fabricating a precision etched, three dimensional device from a silicon wafer, wherein the etching is done from one side of the wafer using a two step silicon etching process. A two-sided deposition of a robust protective layer, such as polycrystalline silicon, is placed over a two-sided deposition of a chemical masking layer such as silicon dioxide. The two layers are concurrently patterned with first and second sets of vias on one side of the wafer, while the opposite side is protected by the protective layer. The protective layer is removed to permit deposition of a second masking layer such as silicon nitride, followed by deposition of a second protective layer. Again, the second protective layer prevents damage to the fragile second masking layer on the wafer backside while its frontside is patterned with a similar set of vias aligned with the first set of vias in the first masking layer. This similar set of vias is sequentially formed in both the second protective layer and the underlying second masking layers. Then the wafer is placed in an etchant bath so that the first set of recesses is anisotropically etched in the wafer frontside side. Next, the second protective layer and second masking layer are removed to permit anisotropic etching of the second set of recesses through the second set of vias in the first masking layer. If the protective layer is polycrystalline silicon, it is concurrently etch-removed during the initial etching of the silicon wafer.

摘要翻译： 公开了一种从硅晶片制造精密蚀刻的三维器件的方法，其中使用两步硅蚀刻工艺从晶片的一侧进行蚀刻。 坚固的保护层（例如多晶硅）的双面沉积置于诸如二氧化硅的化学掩蔽层的双面沉积上。 两层同时用晶片一侧的第一组和第二组通孔构图，而相对侧被保护层保护。 去除保护层以允许沉积诸如氮化硅的第二掩蔽层，随后沉积第二保护层。 再次，第二保护层防止损坏晶片背面上的脆弱的第二掩蔽层，同时其前侧用与第一掩蔽层中的第一组通孔对准的相似的一组通孔构图。 在第二保护层和下面的第二掩蔽层中顺序地形成这种类似的通孔。 然后将晶片放置在蚀刻剂浴中，使得第一组凹陷在晶片前侧被各向异性地蚀刻。 接下来，去除第二保护层和第二掩蔽层，以允许通过第一掩模层中的第二组通孔对第二组凹陷进行各向异性蚀刻。 如果保护层是多晶硅，则在硅晶片的初始蚀刻期间同时进行蚀刻去除。

公开(公告)号：US4829324A

公开(公告)日：1989-05-09

申请号：US137283

申请日：1987-12-23

申请人： Donald J. Drake ,  William G. Hawkins

发明人： Donald J. Drake ,  William G. Hawkins

IPC分类号： B41J2/175 ,  B41J2/05 ,  B41J2/16

CPC分类号： B41J2/1623 ,  B41J2/1604 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1635 ,  B41J2202/20

摘要： A large array ink jet printhead is disclosed having two basic parts, one containing an array of heating elements and addressing electrodes on the surface thereof, and the other containing the liquid ink handling system. At least the part containing the ink handling system is silicon and is assembled from generally identical sub-units aligned and bonded side-by-side on the part surface having the heating element array. Each channel plate sub-unit has an etched manifold with means for supplying ink thereto and a plurality of parallel ink channel grooves open on one end and communicating with the manifold at the other. The surfaces of the channel plate sub-units contacting each other are {111} planes formed by anisotropic etching. The channel plate sub-units appear to have a parallelogram shape when viewed from a direction parallel with and confronting the ink channel groove open ends. The heating element array containing part may also be assembled from etched silicon sub-units with their abutting surfaces being {111} planes. In another embodiment, a plurality of channel plate sub-units are anisotropically etched in a silicon wafer and a plurality of heating element sub-units are formed on another silicon wafer. The heating element wafer is also anisotropically etched with elongated slots. The wafers are aligned and bonded together, then diced into complete printhead sub-units which have abutting side surfaces that are {111} planes for accurate side-by-side assembly.

公开(公告)号：US4601777A

公开(公告)日：1986-07-22

申请号：US719410

申请日：1985-04-03

申请人： William G. Hawkins ,  Donald J. Drake ,  Michael R. Campanelli

发明人： William G. Hawkins ,  Donald J. Drake ,  Michael R. Campanelli

IPC分类号： B41J2/01 ,  B41J2/015 ,  B41J2/05 ,  B41J2/16 ,  H01L49/02 ,  H01L21/306 ,  B44C1/22 ,  C03C15/00 ,  C23F1/02

CPC分类号： B41J2/1623 ,  B41J2/1604 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1642 ,  H01L49/02

摘要： Several fabricating processes for ink jet printheads are disclosed, each printhead being composed of two parts aligned and bonded together. One part is a substantially flat substrate which contains on the surface thereof a lineal array of heating elements and addressing electrodes, and the second part is a substrate having at least one recess anisotropically etched therein to serve as an ink supply manifold when the two parts are bonded together. A lineal array of parallel grooves are formed in the second part, so that one end of the grooves communicate with the manifold recess an the other ends are open for use as an ink droplet expelling nozzles. Many printheads can be made simultaneously by producing a plurality of sets of heating elements array with their addressing electrodes on a silicon wafer and by placing alignment marks thereon at predetermined locations. A corresponding plurality of sets of channels and associated manifolds are produced in a second silicon wafer and, in one embodiment, alignment openings are etched thereon at predetermined locations. The two wafers are aligned via the alignment openings and alignment marks, then bonded together and diced into many separate printheads. A number of printheads can be fixedly mounted in a pagewidth configuration which confronts a moving recording medium for pagewidth printing or individual printheads may be adapted for carriage type ink jet printing.

摘要翻译： 公开了用于喷墨打印头的若干制造方法，每个打印头由对准和粘合在一起的两个部件组成。 一部分是在其表面上包含加热元件和寻址电极的线阵列的基本平坦的基板，并且第二部分是具有各向异性蚀刻在其中的至少一个凹部的基板，以当两部分为 结合在一起 在第二部分中形成一系列平行的凹槽，使得凹槽的一端与歧管凹槽连通，另一端打开以用作墨滴排出喷嘴。 许多打印头可以通过在硅晶片上产生多组加热元件阵列与其寻址电极并通过在预定位置放置对准标记而同时制造。 在第二硅晶片中产生相应的多组通道和相关联的歧管，并且在一个实施例中，在预定位置处蚀刻对准开口。 两个晶片通过对准开口和对准标记对齐，然后粘合在一起并切成许多单独的打印头。 许多打印头可以固定地安装在页宽配置中，该宽度配置面对用于页宽打印的移动记录介质，或者单独的打印头可适用于支架式喷墨打印。