Abstract: A method for packaging a plurality of semiconductor devices formed in a surface portion of a semiconductor wafer. The method includes: lithographically forming, in a first lithographically processable material disposed on the surface portion of the semiconductor wafer, device exposing openings to expose the devices and electrical contact pad openings to expose electrical contact pads for devices; and mounting a support having a rigid dielectric layer formed on a selected portion of the support, such rigid dielectric layer comprising a second lithographically processable material, such rigid material being suspended over the device exposing openings and removed from portions of the support disposed over the electrical contacts pads openings in the first lithographically processable material. The support is released and removed from the second lithographically processable material, leaving the second photolithographically processable material bonded to the first photolithographically processable material.

Abstract: A method for packaging a plurality of semiconductor devices formed in a surface portion of a semiconductor wafer. The method includes: lithographically forming, in a first lithographically processable material disposed on the surface portion of the semiconductor wafer, device exposing openings to expose the devices and electrical contact pad openings to expose electrical contact pads for devices; and mounting a support having a rigid dielectric layer formed on a selected portion of the support, such rigid dielectric layer comprising a second lithographically processable material, such rigid material being suspended over the device exposing openings and removed from portions of the support disposed over the electrical contacts pads openings in the first lithographically processable material. The support is released and removed from the second lithographically processable material, leaving the second photolithographically processable material bonded to the first photolithographically processable material.

Abstract: Improvements in the detection of TWACS outbound message signals. A first improvement involves matching some (or all) of the intermediate points in an outbound preamble occurring between bits of the preamble currently being detected. This reduces the possibility of a false synchronization and therefore decreases the probability of missing outbound message signals. A second improvement is to require some or all of the known preamble bits to exceed a predetermined threshold where both the thresh-old and which bits are adjustable. An additional approach is using 4-8 additional buffers in a transponder to detect preamble patterns in the outbound message. Each half cycle of the outbound message waveform requires entering a bit only into the buffers active for the particular frame of reference in which the message is being transmitted, since only buffers for that frame of reference are employed. The process continues until all bits specified to be sent, based on the length of the outbound message, are extracted.

Abstract: A method for packaging a plurality of semiconductor devices formed in a surface portion of a semiconductor wafer. The method includes: lithographically forming, in a first lithographically processable material disposed on the surface portion of the semiconductor wafer, device exposing openings to expose the devices and electrical contact pad openings to expose electrical contact pads for devices; and mounting a support having a rigid dielectric layer formed on a selected portion of the support, such rigid dielectric layer comprising a second lithographically processable material, such rigid material being suspended over the device exposing openings and removed from portions of the support disposed over the electrical contacts pads openings in the first lithographically processable material. The support is released and removed from the second lithographically processable material, leaving the second photolithographically processable material bonded to the first photolithographically processable material.

Abstract: A method is disclosed for reducing or eliminating the wavefront error caused by variations in the thickness of an optical coating applied to a mirror without requiring that the thickness variation in the optical coating be reduced to reduce the wavefront error. The reduction in the wavefront error is achieved by adding a compensating layer to the top of the optical coating. The thickness of the compensating layer is directly proportional to the thickness of the optical coating and inversely proportional to one minus the index of refraction of the material used for the compensating layer.

Abstract: A fluid temperature monitor comprising a thermosensing unit which is of a size and shape so that it may be readily inserted between the male exit from the fluid coolant pump and the radiator hose connected thereto, thus permitting universal installation in internal combustion engines.

Abstract: A remote object/vehicle identification and speed determination system including a bar code label on each object/vehicle and a device for continuously scanning an area to determine when the object/vehicle is present at a predetermined distance from the scanning device. The scanning device may be responsive to ambient visible or invisible radiation from the label. Each label includes unique identification data for the object/vehicle as well as spaced framing signals used for making distance determinations. Each label may be invisible and may be on or in the windshield of a vehicle.The signals from the scanning device are sampled continuously and the sampled signals are stepped along a shift register. Parallel outputs from the shift register are continuously analyzed so that signals from a single scan across a label are sufficient to determine if an object/vehicle is at a predetermined distance from the scanning device and to read the unique identification data.

Abstract: The positional resolution of a display of graphic information generated from a digital-encoded description taken from memory is improved without increasing the fine-line resolution of the display, this being done to reduce the memory required to store the digitally encoded description of the display. The departure of the pixels in the display from their normal position in a raster defined by a relatively coarse scanning line structure and limited video bandwidth is digitally encoded; and the bits of the code are stored in respective memory planes, each having an array of storage locations mapping the normal positions of pixels in the display raster.

Abstract: In a raster-scanned kinescope display resolution in the direction of slow sweep tends to be limited by the spacing between adjacent scan lines in the direction of fast sweep. Auxiliary minor deflection at video rate is used to improve the positional resolution of the display in the direction of slow sweep.

Abstract: A cast film, sheet or coating of a crosslinked graft copolymer of an organic polymeric substrate and an ethylenically unsaturated organic monomer is formed by effecting the graft copolymerization while the polymeric substrate and monomer are in solution in a solvent thereby to form the crosslinked graft copolymer in the form of a gel, subjecting the gel to high shear forces to convert it to a thixotropic suspension, forming the thixotropic suspension into a layer, and removing the solvent from the layer.

Abstract: A cast film, sheet or coating of a cross-linked graft copolymer of an organic polymeric substrate and an ethylenically unsaturated organic monomer, which is useful as a ion-exchange membrane, particularly a separator for an alkaline battery. The graft copolymer is formed by initiating and effecting the graft copolymerization while the polymeric substrate and monomer are in solution.

Abstract: Polymeric bodies having selected morphological properties are prepared by effecting an apparent increase in the glass transition temperature of the polymer to cause it to become glassy and manipulating the polymer while it is in the glassy state. In the preferred practice of the invention, the apparent increase in the glass transition temperature is a reversible function so that after the morphological properties of the polymer have been developed, the normal glass transition temperature of the polymer may be restored.The process of this invention finds utility in the preparation and formulation of polymers in powdered form; it provides a practical method for the formation of powders in unusual size ranges, which, in turn, makes possible the formation of shaped articles by novel processes; and it provides a simple method for making products, such as open-cell foams and surfaces in relief, that have unique physical characteristics.

Abstract: An automatic dialing apparatus, for telephones with conventional circuitry which make station connection by coded patterns of successive circuit interruption, including a self-contained power supply, an electric motor driven by the power supply, a gear system connected to the electric motor, a memory disc embodying a telephone number by the disposition of protuberances in concentric annular coded arrangement thereon, said disc being removably connectable to the gear system for rotation by the motor, and a circuit adapted to interconnect with the conventional circuit having a microswitch disposed to engage the protuberances on the disc so as to interrupt the conventional circuit each time the switch is engaged by a protuberance.