Abstract: A device for handling miniature electronic components is disclosed that employs a central member of unitary construction and compliant composition having a pair of generally parallel first and second surfaces. An apertured portion of the central member defines an array of receptor holes extending through the central member between the first and second surfaces, each one of the receptor holes having a cross sectional area that is shaped and dimensioned to receive in a force fit one of a batch of electronic components to be handled. Framing components for facilitating central member handling and enabling central member replacement without obstructing component access to the receptor holes define a generally rigid removable framework.

Abstract: A robotic paint masking machine is disclosed. The machine consists of a rotatable table pivotally mounted on a base. The rotatable table is operatively connected to a rotary actuator. The rotary actuator has the ability to rotate the rotatable table 180 degrees. Two mask holders are positioned on the rotatable table in opposed relationship to one another. Each mask holder includes a vertically movable frame for holding a decorative mask. Two rotary indexing units are mounted between the rotatable table and the mask holders for rotating the mask holders during a painting operation.

Abstract: Self-supporting paint shields have at an end thereof a continuously annular wall portion defining an opening for receiving a circular object to be shielded. This annular wall portion has around that opening a tapering brim and has across that opening a diameter different from a diameter of that circular object. The annular wall portion is adaptable in diameter to the circular object and is adapted to extend with its tapering brim to a surface to be painted, while the continuously annular wall portion is in contact with the circular object at the mentioned end, thereby exerting a gripping action supporting the paint shield on the circular object. The paint shields preferably have a circumferential bevel extending in a continuous transition from an outer shield surface to the paint shield opening. Such opening preferably is smaller in diameter than the circular object, and the paint shield is twisted at the annular wall portion onto that object.

Abstract: In vacuum depositing apparatus, especially for the manufacture of magnetic tapes, a substrate holder is disposed in the form of a cooling cylinder, and in the path of the vapor stream there is a mask for the purpose of geometrically restricting the vapor stream. In order to prevent any condensation of vaporized material in solid form, the surface of the mask facing the vapor stream is not aligned horizontally, and its lowermost edge lies within the projected surface of the crucible opening. The surface of the mask can be heated up to a temperature that is between the vaporizing temperature and the solidification temperature of the vaporized material. In an especially advantageous manner, the surface of the mask is formed by tiles of a ceramic material.

Abstract: A spraying apparatus is provided with a pair of discs for masking the material which is sprayed. The discs are mounted on an axle which is free to move up and down within the spraying apparatus as the spraying apparatus moves over the surface which is being sprayed. Each of the discs includes an axially extending flange which provides a well for retaining material which is sprayed onto the disc.

Abstract: A carrier is provided to hold a central apertured disk while magnetic material is plated simultaneously on the annular surfaces on both sides of the disk. The carrier contains a first opening substantially the same diameter as the disk and a second opening formed about a center line offset from the center line of the first opening so as to form a recess around a portion of the edge of the first opening. The disk is inserted into the first opening and recess to block the flow of plasma and impurities from one side of the disk to the other during the disk surface coating. A two-part plug is provided for placement in and sealing the center aperture of the disk. One plug part contains a spring or magnetic means for holding the two parts together within the disk. The plug includes a knob for handling, carrying and mounting or removing the disk from the carrier.

Abstract: A generally semi-circular or "U"-shaped plastic shield of a width to cover a sidewall of a tire, and having a radially outwardly extending handle midway between its opposite end, so as to flex the shield and fit its inner edge between a wheel rim and the tire.

Abstract: A system for plating resonator electrodes or the like by the vapor deposition process employs one or more shutters between the deposition material source and a plating mask. At least one of the shutters has a pair of apertures aligned with different apertures in the plating mark. In one embodiment comprising a two shutter, four position system, the two shutters may be positioned such that either, both or neither of the resonators can be plated. Because each shutter is either ON or OFF, a simple binary analogy for control of the shutters results.

Abstract: A process for forming metal bars with a non-skid coat by arranging a plurality of the bars in a side-by-side assembly and thermally applying a metallic spray coat simultaneously to a plurality of the bars while inhibiting bridging of the spray material across adjacent bars.

Abstract: The present invention provides a means of relieving stress on an apertured mask, typically used to deposit thin-film structures on a glass substrate, such that the mask easily conforms to the substrate surface when the mask is in its hold down and patterning position during the deposition process. In particular, the present invention provides a mask assembly having a structurally relieved inner apertured mask portion from an outer mask portion that serves to eliminate wrinkles or crimps in the mask during deposition which may produce unacceptable blurs or shorts between thin-film structures. The stress relieving feature includes a slot which is disposed peripherally about the inner mask and two small segments providing the interconnection between the inner and outer mask of the mask assembly.

Abstract: An apparatus for use in coating a selected area of a surface of a body, such as a flat disc type body, includes a support member having a recess in one side which is adapted to receive the body and an opening through the bottom of the recess which is smaller than the recess. A cup-shaped cover plate is adapted to fit into the recess in the support member. The cover plate has a bottom which is adapted to engage the body and hold it firmly against the bottom of the recess with the surface of the body to be coated being exposed through the opening in the support member. A mask of a magnetic material is adapted to fit in the opening in the support member against the surface of the body. A permanent magnet is adapted to be seated against the bottom of the cover member and attract the mask to hold the mask against the surface of the body.

Abstract: Apparatus for solvent bonding surfaces of thermal plastic members, one to another, which includes a working solvent spray enclosure with work retaining rack means mounted within the enclosure to removably receive workpieces thereon. Mask retaining means are disposed within the enclosure for masking preselected portions of the workpieces, with the masks being arranged to provide face-to-face contact and bonding between the workpieces held within the work retaining racks. A solvent spray apparatus is disposed within the enclosure and includes a spray head with nozzles directed toward the workpieces for generating the spray mist of solvent onto the surfaces of the mask and exposed portions of the workpiece. Carriage means are provided for transporting the solvent spray apparatus along a linear path generally between opposed surfaces of workpieces held within the enclosure, with the carriage means being arranged to direct a substantially uniform spray of solvent onto the workpieces.

Abstract: Disclosed is a resin molding decorative member having a back surface formed with intersecting masking jig mounting grooves which define numerous segments separated from each other by the grooves. Also disclosed is a method for providing a desired pattern on the back surface of the member.

Abstract: An improved crystal plating device having a base containing a power circuit and an oscillating circuit. The base is provided with a chamber and has a sealed top enclosing the chamber. At least one pair of filament posts are fixed to the base and disposed within the chamber and in the power circuit. A filament is connected across the filament post. A crystal holder is removably connected with the base. The crystal is held by the holder in the oscillating circuit. A pump is connected to the base to vacuum pump the chamber. Energizing the circuits will oscillate the crystal and evaporate the filament to plate the crystal and produce the desired frequency therefore. The improvement comprises a crystal holder designed to hold a plug-in circuit board having a plurality of prongs, the board containing the crystal. The crystal holder includes plug-in means for inserting the prongs of the circuit board in the oscillating circuit.

Abstract: A disposable spray shield has a thin, planar sheet of large surface area fabricated with an inexpensive, semi-rigid material, such as cardboard, formed with a structural reinforcing rib along its rear edge. The rib can be used as a handle in combination with a hand hole through the sheet adjacent the rib, or, preferably, a removeable handle is included for removeable attachment to the disposable spray shield. The rib is preferably formed from a portion of the planar shield sheet creased and folded into an elongated configuration having an equilateral triangular cross-section, and the handle has clamping jaws and mating surfaces that engage the rib to orient the axis of the handle parallel to the plane of the shield or, alternately, at an obtuse angle to the plane of the shield. Disposable handles are also provided as another alternative.

Abstract: An apparatus for thermally spraying a coating on a workpiece includes a fluid flow control shroud having a shaped inner surface portion complimentary to a preselected surface of the workpiece. During the coating operation, a supply of pressurized gas is introduced between the inner surface of the shroud and the workpiece surface to exclude deflected coating particles, remove weakly or loosely bonded particles, and cool the workpiece.

Abstract: The present invention relates to a device for carrying out a paint touch up in a corner formed by the intersection of two planar sufaces disposed at right angle with respect to each other. Such a touch up device comprises a first part including a handle and provided with a rectangular plate for masking from the corner a portion of a first of the two surfaces. The touch up device also comprises a paint roller provided with a handle constituted by a rod and holding this roller at one end. The rod is bent in order to cooperate with a guiding system of the first part for the purpose of, when this first part masks the above-mentioned portion of the first surface, positioning the paint roller and guiding any movement along the corner transmitted to this roller through its handle so as to allow painting from the corner of a portion of the second of the two surfaces, which portion of the second surface corresponds to the portion of the first surface masked by the first part.

Abstract: Paint shield holders and shielding methods form a pair of planar sheets and an interconnecting resilient bight portion into a clip for receiving a planar edge portion of a paint shield between major surfaces which in area are a multiple of a cross-section of each planar sheet perpendicular to the major surfaces. The resilient clip is employed to bias the planar sheets at their major surfaces into frictional engagement with the contacted planar edge portion of the inserted shield. Instead of nuts, bolts or other fasteners, the mentioned frictional engagement is employed as the only agency at the major surfaces of the planar sheets for holding the planar edge portion of the shield in place upon mere manual insertion of the shield at the planar edge portion into the clip.

Abstract: A mask loading apparatus and method employing a cassette (200) detachably mounted on an in-out cassette holder (212). The cassette is made of low Z-materials, and comprises a cover (211) and a bottom mask-supporting tray (202) locked by machine-operable locking members (224) to the cover. A lift cylinder (218) has a vacuum cup (216) which is raised to support and hold the underside (213) of the tray and, when the tray is unlocked from the cover, to move the vacuum cup, tray and mask downwardly and then laterally by a transport arm (203) to a fixed location under a mask holder (205, 220) in a lithographic apparatus.The lift cylinder then raises the cup, tray and mask to abut the mask holder and to transfer the mask to the mask holder. The lift cylinder and empty tray is then lowered and removed from a position blocking the mask as it is to be used in the lithography processing. A reversal of the sequence of steps is utilized to unload the mask from its use mode and return it to its cassette cover.

Abstract: A vapor deposition apparatus for continuously regulating the deposition thickness from vapor as it is being vacuum deposited across and progressively along one side of a substrate from one or more vapor sources spaced thereacross. The apparatus comprises a central shaft rotatably supporting hollow shafts in end-to-end relation, a series of profile discs on each of the hollow shafts and slidable radially thereon by a slot in each profile disc slidably locating on flats on the hollow shafts. The profile discs are placed between vapor sources, and the substrate moving through a vacuum coating chamber so that the profile discs form a mask controlling the vapor deposition across the substrate. The hollow shafts are coupled to electric motors which may rotate the hollow shafts in response to signals from deposition thickness sensing means.

Abstract: A hand tool comprising, a base panel, defining upper and lower surfaces, forward and rearward edges and two ends, a ridge formation extending generally upwardly from the forward edge of the base panel, the ridge formation including a front panel having a lower edge, first trough-defining member extending forwardly from the front panel, the first trough-defining member defining an upwardly directed trough and including an upwardly and forwardly directed first lip, a generally upwardly and rearwardly directed wall member extending from the rearward edge of the base panel, second trough-defining member extending generally rearwardly from the upper edge of the wall member, the second trough-defining member defining a downwardly directed trough and including a downwardly and rearwardly directed second lip, and, first stop members extending downwardly from the end of the base panel.

Abstract: In the process for manufacturing the ferrite cores used in magnetic data transducer heads, a novel stacking of the bars from which the core pieces are cut allows these bars to mutually shield each other's back gap areas during the alumina sputtering step which sets the lengths of the read/write flux gaps. An inexpensive fixture supports the bars in the desired position during the sputtering operation.

Abstract: A spray coating apparatus for spraying paint on a vertically moving web is designed to provide an overspray area on each side of the web. In order to remove the oversprayed paint, a pair of liquid film forming boards are located on both sides of the web. Each liquid film forming board is provided with a cleaning liquid supply device along the top edge thereof and a plurality of parallel vertically extending protrusions thereon for forming a downwardly flowing continuous liquid film for removing the oversprayed paint.

Abstract: There is disclosed a photomask material comprising a substrate, and at least one layer containing mixture of a metal oxide and a metal nitride or at least one metal nitride layer provided on the substrate, and the photomask material may comprise a substrate and a mask layer provided on the substrate, the mask layer consisting of a layer containing a lower metal oxide and/or a lower metal nitride, and a layer containing a mixture of a higher oxide and a higher nitride of the same metal or a higher metal nitride layer of the same metal.The photomask material of the present invention exhibits excellent resistance to the cleaning solutions and can be used repeatedly.

Abstract: Apparatus for indexing and accurately registering a selected one of a plurality of deposition masks in operative relationship to a substrate comprising carriage means for supporting a plurality of deposition masks in an aligned spaced relationship relative to each other wherein each of the deposition masks has a selected number of prealigned registration members located thereon in a predetermined pattern and which are adapted to co-act with reference registration members loaded thereagainst, gantry means for supporting a substrate at a deposition station above the surface of the deposition masks having the prealigned registration members located thereon, reference registration members which are located on the substrate or around the periphery of the gantry means and which are directed towards and adapted to be loaded against the prealigned registration members to position the gantry means and the substrate relative to the selected one of said plurality of deposition masks, indexing means for transporting the

Abstract: An electrical connector which is covered on its exterior surface with a non-adhering, non-electrically conductive material. The electrical contact surfaces of the electrical connector are free of the non-electrically conductive material. This electrical connector is manufactured by mounting the electrical connector on a mounting fixture wherein the electrical contact surfaces are in direct contact with the mounting fixture, heating the electrical connector to within a desired temperature range, then submerging the electrical connector in a quantity of powdered plastic which evenly coates the exterior surface of the electrical connector, removing the electrical connector from the powdered plastic, reheating of the electrical connector to cause fusing of the powdered plastic into an integral mass, cooling of the electrical connector and then removing such from the mounting fixture.

Abstract: A mount for handling and conveying optical material is disclosed. The mount includes an elastic band disposed around the circumference of the optical material and a hanger. The hanger includes an upper generally "T" shaped suspension portion and a lower engagement hook. The engagement hook slips between the elastic band and the surface of the optical material such that the material may be suspended and conveyed by the hanger. Where a thin edge plastic lens is to be conveyed which cannot support an elastic band disposed around its circumference, a small hole is provided near the edge of and through the lens. The engagement hook of the hanger is passed through the hole and the lens may then be conveyed by the hanger. An alternate embodiment is disclosed for use where only one side of a lens is to be coated.

Abstract: An arrangement for coating substrates in an apparatus for vacuum deposition comprises a rotatable substrate holding structure in the form of a circular plate provided with holders for the substrates. The holders are arranged in circular rows around the axis of rotation of the plate so that the substrates held in the holder are arranged at axes such that those substrates in a single circular row have axes which intersect a single point along the axis of rotation of the plate. A vapor beam correction screen is mounted for rotation adjacent to the plate in an opposite direction about the same axis. A vapor beam correction screen is conformed in a stepwise manner to an even coating of spherical zones which have their center of curvature at the point of intersection of the substrate axes and are tangent to the poles of the respective substrates and cover the surface areas thereof.

Abstract: An apparatus for manufacturing a magnetic recording medium using vacuum-deposition from an evaporated metal source having a very high efficiency and uniform deposition. The support onto which the magnetic film is to be evaporated is guided and conveyed along a curved path above a molten metal evaporating source at a substantially constant speed. The curved path is shaped such that evaporated metal flow lines connecting a central point on the evaporation surface of the molten metal in the evaporating source to corresponding intersection points on the support form the same angle of incidence with respect to the longitudinal direction of the support for all positions along the support where the film is to be deposited. Endless belt structures including guide rollers and magnets are used to form rising and falling paths for conveying the support along the desired curved path.

Abstract: A stencil paper for mimeography is disclosed. The paper is comprised of a porous base which is permeable to mimeographic ink, having thereon a heat-sensitive layer of a material that is solid at ordinary temperatures but which liquifies upon heating. A process for making a stencil is also disclosed, which comprises placing the stencil paper in contact with a receiving medium and selectively heating the stencil paper to liquify portions of the heat-sensitive layer, and allowing the liquified portions of the heat-sensitive layer to transfer to the receiving medium.

Abstract: A protective device for protecting the viewing area of a vision panel from encroachment by flowable cement compositions used to bond reinforcing members to the edge portions of the viewing panel. The protective device is preferably formed of a material non-adherent to both the vision panel surface and the cement composition, and may include vacuum biasing facilities and an edge seal to provide a fluid barrier to the passage of the flowable cement compositions.

Abstract: The arbitrary contouring of thickness of a sputter-deposited film is made possible by a blocking means having a primary blocking shield and an ancillary blocking shield. The primary blocking shield intercepts atoms sputtered directly from the cathode target by line-of-sight transport. The ancillary blocking shield extends downwardly from the side of the primary blocking shield which is placed closest to the substrate. The ancillary blocking shield intercepts atoms sputtered from the cathode which by intervening gas collisions have been redirected to travel underneath the primary blocking shield. Precise tailoring of the thickness profile of the coating on the substrate is thereby provided and the quality of the composite film is maintained. The method for contouring the thickness of sputter coated layers comprises sputter coating portions of the film at successive stations. By employing the improved blocking shield at selected stations, the film in the aggregate may have the desired thickness contour.

Abstract: Apparatus for compensating for asymmetric signatures in semiconductor processes. An asymmetric thickness profile is obtained in a sputter coating system by using a shield placed in an asymmetric position with respect to the center of a symmetric sputtering system such as a circularly symmetric sputtering system. A sputter coated layer is obtained which has the asymmetric character of the shield and its placement. When the substrate is placed in subsequent equipment having asymmetric etch characteristics, the resultant film has a uniform thickness or a known contour.

Abstract: A magnetic recording medium manufacturing device in which a flexible belt-shaped support is conveyed above a molten metal vaporizing source substantially at a constant speed while a magnetic film is formed on a surface of the support by vacuum deposition. The support is guided by transporting means such that the support is curved above the molten metal vaporizing source along a path wherein metal vapor flow lines connecting the center of the molten metal vaporizing source to points on the surface of the support form a constant angle of incidence with the longitudinal direction of the support. An adjusting mechanism is provided to change the angle of incidence by moving the transporting means along lines parallel to the metal vapor flow lines.

Abstract: In a system for plating precisely located spots on an intermittently moved strip of metal, a spring loaded pawl on the spot defining mask is positioned to grasp holes in the strip and move just the mask a short distance with the strip so as to insure mask alignment with the strip.

Abstract: A coating fixture for holding and masking workpieces during a parylene batch coating process. A rigid frame and two face plates form an enclosure. The face plates have a plurality of holes, and the workpieces are located within the enclosure, so that they are aligned with the holes. In preferred embodiments, a separator plate located within the enclosure divides it into two article-receiving compartments, and gaskets are provided for sealably engaging the face plates to the frame and to the workpieces in each compartment. Vaporous coating material enters the face plate holes and coats only portions of the workpieces.

Abstract: The paint shield comprises a thin rectangular sheet with a longitudinal crease extending in from one end terminating short of the opposite end. A transverse crease is provided which intercepts the longitudinal crease. The arrangement is such that a portion of the shield can be bent about the transverse crease to protect areas intersecting at an angle from paint, such as corner molding and the like. By flexing the shield about its longitudinal crease, the bent portion automatically snaps back into a coplanar relationship with the remaining portion of the sheet so that its maximum longitudinal length is again available for shielding while painting. Notches can be cut out from opposite ends dimensioned to snugly engage 2.times.4 inch rafters or 2.times.6 inch rafters to protect surrounding wall areas when painting the rafters.

Abstract: Apparatus to seal the valve of a valve bag with adhesive and of the kind where bag arrives from bagging machine standing up or somewhat reclining. The apparatus comprises adhesive sprayer (9) over which and fitted thereto a shield (23) with bow-shaped cross-section and rounded front is mounted so that the fronts of shield (23) and sprayer (9) are flush over and under each other, or so that the shield (23) protrudes in front of sprayer (9). The assembly comprising shield (23) and sprayer (9) is suspended or has organs to move it in a way that the assembly during insertion into the valve (6) describes a bow-shaped motion (A) in the vertical middle of the bag valve and so that the assembly lifts up the valve (6) when inserted. The adhesive sprayer (9) is designed to apply adhesive onto the lower inside of the bag valve (6).According to one special embodiment the adhesive sprayer can turn or rotate round its own axis in order to apply a consistent strip of adhesive.

Abstract: In vacuum sputter cleaning and plating operations forming a patterned metallic layer on a silicon semiconductor chip, alignment is maintained by anticipating the difference in thermal expansion between the molybdenum mask and the silicon chip and forming the apertures in the molybdenum mask in a radially offset position with respect to the intended cleaning and deposition locations on the semiconductor chip, when the mask and the chip are at room temperature. Then, when the mask and the silicon chip are maintained in a concentric position and are raised to the cleaning and deposition temperature, the differential expansion of the molybdenum mask will bring the apertures therein into perfect alignment with the intended deposition locations on the silicon wafer.

Abstract: A paint guide includes a frame having a shield which terminates in a straight paint sealing edge that is spaced a predetermined distance from a window frame to provide a strip of weatherproofing paint on the window glass adjacent the frame when painting the frame. The shield is movably mounted by a pair of L-shaped brackets on a pair of supporting arms by cams. The cams are slidably mounted within slots formed in the arms to control the movement of the sealing edge. A compression coil spring extends between each of the brackets and associated arm and biases the bracket and shield upwardly from the window glass to move the sealing edge out of engagement with the glass. When downward pressure is applied to the frame, the paint sealing edge is moved vertically into engagement with the glass at a predetermined spaced distance outwardly from the window frame due to the sliding action of the cams within the arm slots. Continued pressure on the shield seals the paint edge tightly against the glass.

Abstract: Surfaces of revolution to be coated by vapor deposition are placed in centering holes of a rotary dome which is centrally seated on a rotary ring. The rotary ring centered by means of fixedly mounted guide and drive rollers so as to have an evaporative source located as close as possible to the axis of rotation of the dome and at the center of curvature of the dome. The substance, vaporized by heating in a high vacuum space, condenses on the substrates as a thin layer. From the variation of the layer thickness, the outline of a corrective mask is computed for a constant radiant intensity of the vapor in all utilizable directions in the space, while assuming a central, point source of evaporation. A corresponding corrective mask is then secured by means of a support to another rotary ring in close proximity to the surfaces of revolution to be coated, which other ring is centered in the same manner as the first rotary ring, but rotates in the opposite direction about the same axis.

Abstract: A carriage assembly for positioning a selected mask from a plurality of masks between a substrate and a source wherein an elongated mask support means having an elongated mask supporting frame and including means for defining elements for guiding and supporting the elongated mask supporting frame, a plurality of apertures formed in the elongated mask supporting frame and which extends from the upper surface to the lower surface and wherein each aperture has a predetermined diameter and a preselected spacing between the centers thereof and which support a plurality of masks therein, a support roller having a bearing surface for engaging, guiding and dynamically supporting the elongated mask supporting frame through the guiding and supporting elements; a pair of central guide rollers each of which have an outer grooved recessed receiving surface for engaging, guiding and dynamically supporting the elongated mask supporting frame through the guiding and supporting elements and a loaded clamping roller having an

Abstract: Apparatus for accurately registering a first member in an interdependent relationship to a second member including prealigned registration members selectively mounted on the second member and having a first elongated member which defines a primary registration point, a second elongated member which defines a different secondary registration point, which together define a line of rotation, a third elongated member which defines a tertiary registration point located at a point other than on the line of rotation wherein each of the elongated members are positioned in a predetermined pattern and reference registration members mounted on the first member having a first receiving member which defines a primary reference point which receives and engages the first elongated member superimposing the primary registration point on the primary reference point, a second receiving member defining a reference line segment which extends in a preselected direction wherein the second receiving member receives and engages the s

Abstract: A crystal plating device and method thereof in which a crystal to be plated and thereby set at a desired frequency is placed in an external removable holder or slug for insertion into a chamber of a plating device. The device is connected to a vacuum pump which is activated after the slug is loaded. Spring loaded filament posts carry a filament of precious metal such as gold or silver. The crystal is oscillated at a predetermined frequency prior to the filament being energized to evaporate or atomize the metal which plates the crystal and sets its frequency identical to that of the oscillator. The slug is externally loaded and can carry different size crystals. It is fitted with masks to accurately direct the deposit of the metal upon either or both sides of the crystal. After plating the slug is easily removed from the plating device.

Abstract: The treatment of a selected area of a body by a solution is obtained by ejecting the solution towards the body and ejecting gas to control the flow of solution to restrict contact between solution and body to the selected area. The invention is particularly concerned with the plating of part of one surface of a rectangular cross-sectioned pin, for example a terminal pin. A particular example is the gold plating of one end of one surface of a rectangular terminal pin, while preventing plating of the other surfaces. Pins, in bandoliers, are carried through a tank, with nozzles on each side. Solution is ejected at one side and a gas at the other side. The gas flows round the pins and restricts wetting to one surface of the pin.

Abstract: In a low reflection type photomask (hard mask) having a chromium masking film provided, through or without an intermediary low reflection layer, on a transparent substrate and further having a low reflection layer provided on the chromium layer, use is made of a composite layer containing chromium oxide and chromium nitride as the low reflection layer. The composite layer is substantially equal in etching speed to the chromium film, and the photomask obtained is free from image deterioration caused by protrusions such as visors, burrs, or fractures, as observed in the photomasks of the prior art using chromium oxide films, and also has excellent durability.

Abstract: A photomask (30) used to form patterns on a resist coated semiconductor wafer is comprised of a transparent baseplate (31) having a thin metallic pattern (32) thereon; a transparent, planar coverplate (33) in intimate contact with the patterned baseplate (31) and an index matching fluid (34) interposed therebetween.

Abstract: A shield for protecting the nap, or pile, at the edges of carpets or the like while painting adjacent surfaces of adjoining walls. The shield is formed of a substantially planar isosceles trapezoidal guard and platform, and a substantially planar rectangular runner. The guard and runner support the platform above the upper surface of the carpet. The angles between the sides and major base of the guard and the angle between the guard and the platform are chosen so that the pile of the carpet does not, as the shield slides over the carpet, spring back into contact with adjacent painted wall surfaces. The guard, platform and runner are preferably made of a single sheet of planar material.

Abstract: A spray shield for use at both projecting corners and recessed corners, such as in a spray painting operation, comprises an angled sheet of rigid material having integral first and second legs. The sheet has a first free edge along the first and second legs for hugging a projecting corner. The sheet also has a second free edge along the first and second legs and opposite the first free edge for congruity with or projection into a recessed corner. The sheet is slanted throughout at least one of the legs to extend at an oblique angle two vicinal surfaces of hugged projecting and congruent recessed corners. The integral first and second legs of the spray shield preferably constitute two adjacent sides of a truncated right or oblique pyramid or prism having at least one of its sides extending at an oblique angle to its base.

Abstract: An apparatus for protecting a baseboard and floor adjacent a wall from drips and spatters that occur when a coating of a substance such as paint is applied to the wall with a brush, roller or other applicator. A pair of horizontally extending rectangular side panels are slidably extensible from opposite ends of a horizontally extending rectangular central frame with at least one set of longitudinal edges of the side panels and frame being aligned. When the side panels are fully extended, the aligned longitudinal edges of the panels and frame are positioned closely adjacent the wall so that the side panels and the planar surface of the frame shield the baseboard and floor from drips and spatters. The frame may be supported on casters to permit the extended device to be readily moved along the floor adjacent the wall as the painting proceeds. Clamp mechanisms may be provided on the planar surface of the central frame for releasably holding a paint roller tray carried by the frame.