Abstract: Processes for fabricating a multi-layer circuit assembly and a multi-layer circuit assembly fabricated by such processes are provided. The process includes (a) providing a substrate at least one area of which comprises a plurality of vias, these area(s) having a via density of 500 to 10,000 holes/square inch (75 to 1550 holes/square centimeter); (b) applying a dielectric coating onto all exposed surfaces of the substrate to form a conformal coating thereon; and (c) applying a layer of metal to all surfaces of the substrate. Additional processing steps such as circuitization may be included.

Abstract: Provided is a method of forming a circuit board including (a) providing a first conductive sheet; (b) selectively removing one or more portions of the first conductive sheet to form a first panel having a first circuit board that is coupled to a disposable part of the first panel by at least one tab that extends from an edge of the first circuit board to an edge of the disposable part of the first panel; (c) applying an insulating coating to the first circuit board so that at least each edge of the first circuit board is covered thereby; and (d) separating the first circuit board from the disposable part in a manner whereupon at least part of the tab remains attached to the first circuit board and includes an exposed edge of the conductive sheet of the first circuit board. Circuit boards formed by the method are also provided.

Abstract: A circuit board includes an electrically conductive sheet having an insulative coating surrounding the conductive sheet, with a surface of the insulative coating around an edge of the conductive sheet having an arcuate or rounded shape. At least one electrical conductor is conformally deposited on at least the rounded insulative coating around the edge of the conductive sheet and defined via photolithographic and metallization techniques. Each electrical conductor on the insulative coating thereon around the edge of the conductive sheet conforms to the arcuate or rounded shape of the insulative coating and, therefore, has an arcuate or rounded shape.

Abstract: A medical device for guiding through anatomy, such as a catheter or guidewire, with a tubular body that has been slotted to enhance bending flexibility, and a polymer liner with an anti-collapsing structure, and a method of making a medical device with a kink-resistant corrugated tubular member and an anti-collapsing structure. Anti collapsing structures may be helical or annular, and may be wire, such as ribbon wire, grooves in the liner, corrugations, or a braid. Liners may be bonded to the anti-collapsing structure, or may have two layers, with the anti-collapsing structure between the layers. Corrugations may be formed between sections of the anti-collapsing ‘structure with heat, pressure, stretching, compression, a mold, or a combination thereof, and may extend inward or outward. Shape or wall thickness may vary along the length to provide a varying bending stiffness. Slots may be formed in groups of two, three, or more, and adjacent groups may be rotated about the axis forming a helical pattern.

Abstract: The present invention is directed to a non-gelled, curable composition including at least one compound having a plurality of imide functional groups. The compound in particular contains a reaction product of at least one secondary monoamine and at least one maleimide, and is suitable for use in coatings and castings.

Abstract: A circuit board layer 2 in accordance with the present invention includes a conductive sheet 4 sandwiched between an insulating top layer 10 and an insulating bottom layer 14. The top and bottom layers 10 and 14 and the conductive sheet 4 define the circuit board layer 2 having an edge that includes an edge 20 of the conductive sheet 4. An insulating edge layer 18 covers substantially all of the edge 20 of the conductive sheet 4.

Abstract: Provided is a method of forming a circuit board including (a) providing a first conductive sheet; (b) selectively removing one or more portions of the first conductive sheet to form a first panel having a first circuit board that is coupled to a disposable part of the first panel by at least one tab that extends from an edge of the first circuit board to an edge of the disposable part of the first panel; (c) applying an insulating coating to the first circuit board so that at least each edge of the first circuit board is covered thereby; and (d) separating the first circuit board from the disposable part in a manner whereupon at least part of the tab remains attached to the first circuit board and includes an exposed edge of the conductive sheet of the first circuit board. Circuit boards formed by the method are also provided.

Abstract: Novel compositions comprising photoactive urethane acrylate resins and an ethylenically unsaturated reactive diluent are disclosed. The urethane acrylate resin comprises the reaction product of a polyhydric acrylate monomer and an isocyanurate. The compositions find particular application in negative photoresist compositions and exhibit improved blocking resistance compared with other negative photoresist compositions. Methods for using the compositions are also disclosed.

Abstract: A circuit board or each circuit board of a multi-layer circuit board includes an electrically conductive sheet coated with an insulating top layer covering one surface of the conductive sheet, an insulating bottom layer covering another surface of the conductive sheet and an insulating edge layer covering an edge of the conductive sheet. An insulating interlayer can be sandwiched between a pair of adjacent circuit boards of a multi-layer circuit board assembly. A landless through-hole or via can extend through one or more of the circuit boards for connecting electrical conductors on opposing surfaces thereof.

Abstract: A circuit board layer 2 in accordance with the present invention includes a conductive sheet 4 sandwiched between an insulating top layer 10 and an insulating bottom layer 14. The top and bottom layers 10 and 14 and the conductive sheet 4 define the circuit board layer 2 having an edge that includes an edge 20 of the conductive sheet 4. An insulating edge layer 18 covers substantially all of the edge 20 of the conductive sheet 4.

Abstract: The present invention relates to corner pieces which are incorporated in a frame for securing and displaying a work of art. The corner piece is adapted to be disposed between adjacent frame members thereby allowing a frame builder to adjust the dimensional allowance of the frame opening once the frame members are cut. The corner piece includes a body member having an upper surface, a lower surface, a first end, a second end, and a lip portion. The upper surface of the corner piece substantially corresponds to the configuration of the adjacently disposed frame members. The lip portion of the corner piece is adapted to overlay a portion of the work of art disposed within the confines of the frame. The corner piece may be provided with one or more slots disposed in the lower surface of the body member adapted to receive a connector for stabilizing the corner piece between the adjacently disposed frame members of the frame.

Abstract: A picture frame is comprised of joint pieces and elongated members. The joint pieces constitute the corners of a frame. The elongated members define the sides of a picture frame. Fastening hardware is employed to secure the entire apparatus. The joint pieces are cut or molded from a material similar to, or compatible with, the elongated members with which a rigid connection is made. Different angles of miter cuts may be made to vary the design of the picture frame. Similarly, different sizes and shapes of joint pieces may be made to additionally vary frame size and design. The joint pieces can be used to replace conventional frame corners which have been damaged, to change the size and appearance of used frames, or to provide additional dimension and design alternatives for new frames.

Abstract: An apparatus (10) for removable attachment to the adjustment ring (26) of telescope sights (12) for firearms (14) or the like is disclosed including a pinch clamping band (28) having an integral, elongated linear projection (42) extending axially therefrom. The clamping band (28) includes a split, annular wall (30) having a transverse radial cut defining first and second, free ends (32, 34). The free ends (32, 34) of the annular wall (30) are drawn together by a bolt (40) extending between bosses (36, 38) extending outwardly from the annular wall (30) on opposite sides of the transverse cut. A lever (50) has a securement end (52) positionable between the free ends (32, 34) of the annular wall (30) and including an aperture (60) for slideably receiving the bolt (40). The lever (50) extends axially from the clamping band (28) parallel to the axis (A) of the adjustment ring (26) and the projection ( 42).