Abstract:
An apparatus is used to identify the type of microprocessor assembly mounted on a printed circuit board. A heat sink is coupled to the microprocessor assembly, and a label is coupled to the heat sink. The label has one of a plurality of preselected patterns of optically reflective and non-reflective areas formed thereon, and at least one photodetector is positioned adjacent the microprocessor assembly on the printed circuit board for detecting the preselected pattern.
Abstract:
A circuit board (10) has a frangible portion (12) for carrying information relating to the circuitry carried on the circuit board. The information is carried in the form of a label (18) or barcode, and identifies the version of the circuitry so that during manufacturing, and later during repair, the circuit can be correctly identified. The frangible portion is broken from the circuit board, but kept with the circuit board. In one embodiment, an adhesive label retains the frangible portion.
Abstract:
The substrate member of a multi-tier circuit board is provided, during the construction thereof, with an integral bar code structure by extending spaced apart, parallel finger sections of an interior metal ground plane portion of a panel structure outwardly past the routing path along which the substrate member is to be separated from the panel structure. After the substrate member is routed from the panel structure it has a peripheral side edge portion upon which exposed end surface portions of the spaced ground plane finger sections are disposed in a mutually spaced bar code array representative of predetermined information relating to the completed circuit board. The ground-seeking probe portion of a conductive scanning device is moved along the bar-coded edge of the substrate member to read and decipher the integral ground plane bar code structure compactly incorporated thereon during the manufacture of the substrate member.
Abstract:
A system for manufacturing a hybrid integrated circuit by mounting an IC and a chip component on a circuit substrate. The system comprises a bar code reader for reading the characteristic data of each IC shown previously thereon to indicate the characteristic thereof, and a selector for selecting an optimal chip component in accordance with the read characteristic of the IC, thereby achieving manufacture of a satisfactory hybrid integrated circuit having predetermined performance.
Abstract:
A method for patterning a tape to which an integrated circuit may be bonded including providing a tape having a top layer of unexposed film which, when exposed in an interconnection pattern and developed, acts as a mask for processing a photoprocessable layer of the tape to provide conductive portions in an interconnection pattern on the tape.
Abstract:
The present invention provides a method of producing electronic components such as LED displays and hybrid IC's from a board supply frame. The frame comprises a parallel pair of elongate side bands, and a plurality of unit circuit boards integrally incorporated in the frame by means of connecting webs and arranged between the pair of side bands at a predetermined interval therealong. Various process steps such as chip bonding and wire bonding are performed with respect to the individual circuit boards while they are still in the frame. In a final step, each unit circuit board or electronic component is separated from the frame. The frame may be provided with an identification pattern to identify the type of unit circuit boards incorporated in the frame.
Abstract:
Densely packed high resolution printed wiring boards may be achieved by providing channels below grade in a substrate planar surface, thereby providing greater conductor width for closely spaced conductors. By mechanically removing the substrate surface between the channels, high virtual resolution is obtained with high quality conductors and insulation spacings of the order of about 0.003 inch, and with actual conductor widths of greater than 0.012 inch. Thus the packing density of printed wiring patterns may be increased significantly. Also the quality of conductor adherence and conductivity is improved. Thus a non-critical and inexpensive process unexpectedly provides an improved quality, more precise printed wiring pattern.
Abstract:
A bar coded index tab for affixation of a label to an article. The tab has a base (60) including a front face (70) and a notch (80) extending across the front face for affixing thereto a label (20) having machine-readable bar coded information on a portion of the label and human-readable information on another portion of the label. The machine-readable information is read in one portion of the notch and the human-readable information is read in another portion of the notch. Lips (110A and 110B) are provided along each side of the notch to grip the label. The reading instrument is located against one of the lips for movement along the lip to accurately read the bar code information without the necessity for human visual contact with the label. The tab has means (120) for attaching the base to an object to be labelled.
Abstract:
A wiring circuit board includes a support metal layer; a base insulating layer disposed on at least one surface in the thickness direction of the support metal layer, and a wiring layer disposed on one surface in the thickness direction of the base insulating layer. A plurality of stripe grooves that extends along a predetermined direction orthogonal to the thickness direction and a plurality of recesses that sinks in the thickness direction of the support metal layer are formed on one surface in the thickness direction and/or the other surface in the thickness direction of the support metal layer. The recesses form a two-dimensional code having a generally rectangular shape in plan view by means of a dot pattern. One side of the two-dimensional code is disposed so as to lie along the stripe grooves.
Abstract:
A component carrier related body which includes a stack with a plurality of electrically conductive and/or electrically insulating layer structures, and at least two information carrying structures formed vertically displaced on at least two different of the layer structures, wherein at least two of the at least two information carrying structures are laterally displaced in a plan view on the stack.