Abstract: A passivation structure is formed using two passivation layers and a protective overcoat layer using two masking steps. The first passivation layer is formed over the wafer and openings are provided to expose portions of the pads for testing the device and fusible links. After testing and laser repair, a second passivation layer is formed over the wafer followed a deposit of the protective overcoat. The protective overcoat is patterned and etched, exposing the pads. The remaining portions of the protective overcoat are used as a mask to remove portions of the second passivation layer overlying the pads. Leads are then attached to pads and the devices are encapsulated for packaging. The second passivation layer overlaps edge portions of the first passivation layer at the bond pads to enhance moisture resistance.

Abstract: A semiconductor device includes an insulating support. A strip of semiconductor material has two ends in contact with the insulating support and a midsection extending between the ends. A dielectric layer encircles the midsection, and a conductive layer encircles the dielectric layer. The conductive layer has a substantially constant width such that a gate electrode formed within the conductive layer is fully self-aligned with drain and source regions formed within the ends.

Abstract: A violent subject immobilization device is provided comprised of an elongated pliable trapezoidal-shaped body member of such size and shape so as to be able to be completely wrapped about the legs of a prisoner or person to be detained and extending from a position above the person's knees to a position below the person's knees. The body member has opposed outer layers of protective material and an inner unitary bendable stiffening/reinforcing material adapted to immobilize the knee joint and the wrapped leg portion of the person. Strap means are provided to permit the wrapped body member to be held in position about the legs of the person. Hand restraint means are also provided along the top edge of the body member. Upright positioning of the subject (sitting or standing) is maintained by means of a shoulder harness attachable to the body member.

Abstract: A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.

Abstract: A transistor is formed on a substrate of dielectric material. The transistor includes a layer of semiconductor material that is formed on the substrate and has a source region and a drain region. The layer also has a channel region that is in a recess of the substrate and adjacent to the source and drain regions. The channel is self-aligned, as are the light doped source and drain regions.

Abstract: A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.

Abstract: A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.

Abstract: A bubble memory includes a garnet film and a pattern of overlying propagation elements, each made of a layer of permalloy and a layer of manganese. The elements define a plurality of paths for propagating magnetic bubble domains under the influence of a Z bias magnetic field and a rotating XY magnetic drive field. The configuration and positioning of the propagation elements is such that the magnetic bubble domains can be selectively routed, e.g. to bypass defective minor loops, by creating barriers over which the magnetic bubble domains will not propagate. Preselected ones of the elements are preferably heated with a laser beam to a temperature which is approximately 75-90% of the melting point of the permalloy. This diffuses the manganese in the permalloy sufficiently to quench the magnetization in the permalloy to thereby create the barriers to bubble propagation.

Abstract: Disclosed is a process for fabricating magnetic bubble memory chips from a magnetic film having an insulating layer on one surface thereof. The process involves forming an aluminous layer of a first substantially uniform thickness on the insulating layer. Subsequently, a layer of water insoluble material is formed on the aluminous layer, and a mask for patterning control conductors for the memory is formed on the water insoluble layer. Later, all regions of the water insoluble layer that are not covered by the mask are removed, and all regions of the aluminous layer that are not covered by the mask are thinned to a second substantially uniform thickness. The thinned aluminous regions are converted to Al.sub.2 O.sub.3 by a chemical reaction with water; while the remaining regions of the aluminous layer remains unchanged. This reaction forms a plurality of patterned control conductors of the first thickness with Al.sub.2 O.sub.3 regions also being of the first thickness lying therebetween.

Abstract: A sliding roof assembly for insertion in an opening in a vehicle roof to form a so-called "sunshine roof". The assembly includes a support structure having an integral panel closing off the rear part of a frame and an integral flange extending around the periphery of the support structure to rest on the vehicle roof when the assembly is fitted. A roof panel slides into and out of a housing, the roof panel being guided in channel section members including interengageable flanges to lock the roof panel in a closed position which also strengthens the assembly.

Abstract: A safety belt reel comprising a coil spring, a shaft on which a safety belt is stored and a variable torque device coupling said spring to said shaft; said variable torque device including at least one spiral body, an element which is drivably engaged with said body and means for enabling translational movement of said body when the spring is wound or unwound by withdrawal and retraction of said belt whereby the output torque of said device is varied to adjust the force exerted on said belt.

Abstract: Acoustic imaging apparatus wherein a beam of high frequency acoustic energy is directed to the object to be imaged to create variations in the transmitted acoustic energy which variations are then detected by a plurality of small particles suspended in the beam path for motion in response to radiation pressure produced by the incident acoustic energy, thus providing a visible image with high contrast sensitivity and excellent image resolution.

Abstract: The disclosure relates to methods of forming Insulated Gate Field Effect transistors and the product suitable for integrated circuits with channel lengths of 1 micron or less, the transistors being isolated from other transistors or other components in the circuit without the requirements of extra isolation steps. This is provided by means of a double diffusion which isolates the channel of the transistor from other elements in the circuit. Channel length is solely a function of the diffusion schedule through openings in the oxide through which the double diffusion takes place.

Abstract: For use with an electrical machine, a contact brush is provided which comprises a solid "carbon" block having a thin layer of electrically conductive, preferably carbon, fibers on a surface which contains the entering edge, or a surface which contains the leaving edge, or both such surfaces. The fibers have free ends contacting the relatively-moving counterface, e.g. a slip ring or commutator, close to the entering or leaving edge, thereby to provide near the respective edge a large number of contact points to obtain sparkless operation.