Abstract:
The current invention is directed to micro-stencil devices and methods. A micro-stencil, in accordance with this invention, comprises a patterned stencil membrane formed from a polymeric layer patterned with stencil features preferably having lateral dimensions in a range of 10 micron to 100 nanometers or less. The micro-stencil preferably includes a porous backing membrane coupled to the stencil membrane to control the flow of print fluids, to allow for two-way flow of print fluids and/or curing gases during a printing operation. The stencil membrane is preferably configured to directly print the stencil features onto a suitable print medium surface. The micro-stencil of the instant invention, is preferably utilized for printing structures comprising interconnected layers, such as micro-circuits, and/or structures comprising polymer arrays.
Abstract:
A stencil comprising two or more layers is disclosed for applying surface mount materials onto printed circuit boards, flexible circuits, wafers or other substrates. The stencil can accommodate preexisting surface mount components and materials. The stencil utilizes material reservoirs, relief areas and delivery apertures and can be used for depositing surface mount materials such as adhesives, conductive glues, solder paste and solder balls.
Abstract:
A perforation pattern is provided with a stencil plate, which is decreased in perforation configuration irregularity and has an adequate size of perforations. The stencil plate is produced from a heat sensitive stencil sheet having a heat shrinkable film by selectively heating the film with a heating device to form independent dot perforations corresponding to an image in the film, and each of the perforations has a through hole and a rim surrounding the through hole and bulging on a heated side of the film, and the rim has a height that satisfies the following formulae (1) and (2):hnull4(nullm)nullnull(1)hnull0.05{square root}{square root over ( )}(pxpy) (nullm)nullnull(2)where h denotes the height (nullm) in reference to the surface of the film before heated, px and py respectively denote pitches (nullm) in main and sub scanning directions of the heating device.
Abstract translation:穿孔图案设置有模板,其穿孔构造不规则减小并且具有足够的穿孔尺寸。 通过用加热装置选择性地加热薄膜,由具有热收缩薄膜的热敏蜡纸制造模板,以形成对应于薄膜中的图像的独立点孔,并且每个穿孔具有通孔和边缘 围绕通孔并在膜的加热侧隆起,并且边缘具有满足下列公式(1)和(2)的高度:<段落lvl =“0”>内嵌式> h < = 4(mum)(1) in-line-formula> <段落lvl =“0”> h <= 0.05 {平方根} {平方根超过()}(pxpy) 妈妈)(2) in-line-formula>其中h表示相对于加热前的膜表面的高度(mum),px和py分别表示加热的主扫描和副扫描方向上的间距(母) 设备。
Abstract:
A stencil assembly for applying a stenciled design or message on a surface includes: (a) a reusable stencil base framing an elongated opening straddled by two opposite, parallel interior long edges; the stencil base further including at least one exterior long edge parallel to the interior long edges, and a number of female stencil base cut-outs along the long edges; and (b) a number of stencil pieces of sufficient size for close insertion in the opening; the stencil pieces being formed of a common material and generally having a common length; the stencil pieces being interchangeably arrangeable in the opening between the interior long edges; a majority of the stencil pieces each including an individual character cut-out for receiving a stenciling material; the stencil pieces further including at least one male stencil piece projection on at least one of its sides, the male stencil piece projection being insertable in at least one of the female stencil base cut-outs. A stencil kit is also included herein.
Abstract:
A golf ball marking guide has opposing first and second body portions. Each body portion has opposing front and back ends and opposing top and bottom edges. The body portions also have a drawing slot positioned between the opposing top and bottom edges and extending at least partially between the front and back ends. The body portions also have generally spherical concave inner surfaces. A tab extends from the front of the first body portion in a direction generally away from the body portion back Another tab extends from the front of the second body portion in a direction generally away from the body portion back. A connector is provided at the back of the first body portion. A cooperating connector is also provided at the back of the second body portion. The two connectors are coupled, one with the other, whereby the two body portions are aligned with each other, their inner surfaces face each other and define a spherical frustum, and the two tabs are aligned with each other.
Abstract:
A device for printing on paper or plate-shaped materials, such as plates made of glass, ceramic, glass-ceramic or plastic materials, having a transport device for the plates to be printed and an electrostatic, in particular an electrographic, printing device arranged above it. With the printing process of this invention, in an efficient manner, a conveying and centering unit of a screen-printing device is combined as a transport device with the electrostatic, in particular the electrographic, printing device, which is compatible with the upper unit of the screen-printing device.
Abstract:
A stencil printing apparatus prevented from being irregular in printing density between the central portion and the marginal portions of the printing area of a printing drum is provided. The stencil printing apparatus comprises a cylindrical printing drum having an ink-passable circumferential wall, an inner roller disposed inside the printing drum for supplying ink to an inner circumferential surface of the circumferential wall, and an outer roller disposed outside the printing drum in opposite to the inner roller. The inner roller is disposed at a gap of 0.9 mm or less, preferably 0.3 mm or less from the inner circumferential surface of the circumferential wall, and the outer roller is larger in diameter than the inner roller.
Abstract:
A method and apparatus for fabricating a wafer spacing mask on a workpiece support chuck. Such apparatus is a central body containing a plurality of apertures that is positioned atop the workpiece support chuck and an outer ring shaped body positioned on a flange of the workpiece support chuck while material is deposited onto the apparatus and through the apertures onto chuck. Upon completion of the deposition process, the central body and ring shaped body are removed from the workpiece support chuck leaving deposits of the material to form the wafer spacing mask.
Abstract:
The present invention is to a stand (10) for supporting framed (100) screens (200) during the coating, developing and cleaning processes. The stand (100) includes one or more braces (40) supporting a top portion (30) substantially parallel to a bottom portion (20). The top portion (30) rotates relative to the bottom portion (20) to permit one to remove or insert a frame into the stand (10). The top and bottom portions (20,30) support shafts (52) that are selectively rotated by a controller assembly (60) and an actuator assembly (80). As a result, one can clean, coat or treat the front of the screen and then the back of the screen without touching, lifting or physically moving the screen. This facilitates the coating, exposing, developing and cleaning processes associated with screens used in screen printing.
Abstract:
A wall corner stencil design system and application method that resolves design impasses unique to the corners of rooms by converting wall corners into focal points for visual and aesthetic design continuity with the incorporation of nullstop-gap stencilsnull and/or a nullcorner stencilnull (consisting of nullleftnull and nullrightnull sides) designed for independent use and to compliment existing and/or underlying running border stencil patterns.