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Copolymers of 4-hydroxystyrene and alkyl substituted-4-hydroxystyrene in
admixture with a photosensitizer to...
A copolymer of (a) an unsubstituted 4-hydroxystyrene monomer and (b) a substituted 4-hydroxystyrene monomer of the formula ##STR1## wherein A, B, C, and D...
System and method for overwriteable magneto-optical recording
A system and method for overwriteable magento-optical recording comprises a medium having a data layer and a reference layer. The medium is heated with a laser...
High performance integrated circuit chip package
A high performance integrated circuit chip package includes a support substrate having conductors extending from one face to the opposite face thereof and a...
Device for removing a direct access storage device from a personal
This disclosure relates to a personal computer apparatus and a device for removing a direct access storage device from a personal computer. More particularly,...
Low level device interface for direct access storage device including
minimum functions and enabling high data...
A controller device interfacing method and a low level device interface are provided for use between at least one controller and a plurality of devices in a...
Self-aligned process for capping copper lines
The present invention features a process and a resulting article in which copper-based multilevel interconnects are fabricated. The copper-based multilevel...
Process for the increase in critical temperature of high T.sub.c
A method is disclosed to increase the critical transition temperature of superconducting materials by the selective application of stress to specific crystal...
Method and apparatus for immersion cooling or an electronic board
A liquid heat sink is provided that employs natural convection of a liquid coolant (18') to cool a printed circuit board (14) on which are mounted a plurality of...
Method and means for managing RAID 5 DASD arrays having RAID DASD arrays
as logical devices thereof
A method and apparatus teaching insertion of addressing indirection to form and to access an array hierarchy expressly permitting the concurrency of a high level...
Debris control system
A debris control system is provided for an electron-beam drilling apparatus having a chamber encompassing a drilling area and a calibration area. The debris...
Method to provide concurrent execution of distributed application
programs by a host computer and an...
A method for processing distributed application programs in SNA type networks employing LU 6.2 protocols, including an information processing system having a...
Recovery from errors in a redundant array of disk drives
Fault tolerance in a redundant array of disk drives is degraded when error conditions exist in the array. Several methods for rebuilding data of the array to...
Interactive display system
An interactive display system including: a first display; a movable display device having a second display which is substantially smaller than the first display,...
Double cantilever sensor for atomic force microscope
An atomic force microscope that performs both atomic force and surface potential measurements on a sample comprises a conductive probe beam that includes two...
Pipeline apparatus having pipeline mode eecuting instructions from
plural programs and parallel mode executing...
A pipeline data processor is simultaneously operable in a pipeline mode, a parallel mode and a vector mode which is a special case of the pipeline mode. Each...
Fault tolerant logic system
A logic system including a first logic block for providing first differential outputs; a second logic block, identical to the first logic block, for providing...
Multi-layer thin film structure and parallel processing method for
A method and apparatus for releasing a workpiece from a substrate including providing a substrate which is transparent to a predetermined wavelength of...
Method and apparatus for transforming low bandwidth telecommunications
channels into a high bandwidth...
Low bandwidth telecommunications channels are transformed into a high bandwidth telecommunications channel by determining the relative transmission delays among...
Tab tape, method of bonding tab tape and tab tape package
A TAB (tape automated bonding) tape is disclosed which includes one or more openings, each adapted to receive a semiconductor chip, and electrical leads...
Endurance management for solid state files
A nonvolatile storage system including several data storage arrays; a counter storage array for storing values indicating the remaining useful life of each of...
Bilayer metallization cap for photolithography
A process of patterning a conductive layer on a substrate avoiding webbing yet permitting high density patterning places two layers between the resist and the...
Shielding materials for electromagnetic digitizers
Shielding materials used in electromagnetic digitizers which are packaged in a notebook computer environment. Shielding materials with sufficiently high magnetic...
Small programmable array to the on-chip control store for microcode
An apparatus for correcting a faulty microcode contained in a control store of a microprogrammed processor. The apparatus comprises two functional parts; namely,...
Logical data tracks extending among a plurality of zones of physical
tracks of one or more disk devices
One or more data-storing disk devices support logical tracks extending between radial recording zones of tracks in the device(s). Each data-storing disk in the...
Integrated circuit testing system having a cantilevered contact lead
probe pattern mounted on a flexible tape...
A system for testing chips uses a patterned tape having a patterned array of cantilevered contact leads. The tape serves as an interface between the chip under...
Electrical and/or thermal interconnections and methods for obtaining such
Circuit boards or cards containing metallic layers on opposite major surfaces of a dielectric substrate whereby electrical and/or thermal interconnection between...
Coplanar transmission line millimeter radiation source
A structure for guiding millimeter wave radiation employs a resonant coplanar transmission line on a transparent substrate. A very short, picosecond, pulse is...
Current limiting clamp circuit
A current limiting clamp circuit for providing a clamped voltage at a node and including a P-type MOS transistor and several N-type MOS transistors which are...
Adaptive routing in a parallel computing system
A multi-dimensional, multi-nodal routing mechanism is described for relaying information from node to node using a header consisting of route descriptor bits....
Delayed cache write enable circuit for a dual bus microcomputer system
with an 80386 and 82385
In an 80386/82385 microcomputer system, the timing requirements placed on non-cache memory components by the 82385 are more stringent than the timing...
Odd boundary address aligned direct memory acess device and method
A system for transferring a plurality of data items (bytes) between a source device and a destination device. The system loads data items from the source device...
Nested frame communication protocol
A nested frame communication protocol for communicating between computers. According to the nested frame communication protocol of the present invention, the...
Transducer head flying height monitoring methods and apparatus for disk
A method and apparatus are provided for measuring flying height changes of a transducer head relative to a disk surface of a rotating disk in a disk file. A...
System and method for data recovery in multiple head assembly storage
A systematic method for detecting which head in a multiple head storage device contains errors and may be misaligned, and correcting for misalignment so that the...
System and method for building a computer-based rete pattern matching
A computer-based system and method for building a Rete based network. The computer-based system comprises a first module for inputting rules into the...
Input/output system for computer user interface using magnetic levitation
A programmable computer user input/output (I/O) system having a multiple degree-of-freedom magnetic levitation (maglev) device with a matched electrodynamically...
A molecular restricter for inhibiting or preventing gas molecules from flowing past a point, such as a piece of optical equipment, substantially without...
Optical fiber link control safety system
A fully redundant safety interlock system is provided comprising, means for detecting the loss of light on a fiber optic link; controller means, coupled to said...
Resonant-transition DC-to-DC converter
The present invention is a circuit and method for reducing switching losses in a full bridge, resonant transition, switching power converter. The converter...
Bimetallic insert fin for high conduction cooling structure
A high conduction cooling structure useful for dissipating heat from integrated circuit devices includes a cooling base (10), a bulk heat transfer element (18),...
Dam for lead encapsulation
A method and apparatus to encapsulate a device and joints coupled to conductive leads with an encapsulating material. A fixture has a recess to hold via a vacuum...
System bus preempt for 80386 when running in an 80386/82385
microcomputer system with arbitration
A multi-bus microcomputer system includes a cache subsystem and an arbitration supervisor. A CPU is provided with a PREEMPT signal source which generates a...
Control of pipelined operation in a microcomputer system employing
dynamic bus sizing with 80386 processor and...
Any incompatibility between pipelined operations (such as is available in the 80386) and dynamic bus sizing (allowing the processor to operate with devices of...
Gradiometer having a magnetometer which cancels background magnetic
field from other magnetometers
A gradiometer utilizes at least three vector magnetometers (preferably SQUIDs) to measure a magnetic field gradient. The gradiometer includes a reference...
Joining two database relations on a common field in a parallel
relational database field
A technique for performing joins in parallel on a multiple processor database system effectively deals with data skew. The join operation is performed in three...
Method of forming an inverse T-gate FET transistor
A method of forming an LDD field effect transistor with an inverted "T"-gate structure in which consecutive, conformal layers of polysilicon, metal and nitride...
Computer based inference engine device and method thereof for
integrating backward chaining and forward...
An inference engine device adapted for use in a computer-controlled expert system, the computer-controlled expert system having a computer and a knowledge base...
Elimination of etch stop undercut
Two methods for wet etch removing an etch stop layer without leaving an undesired undercut are disclosed. In the first method, a reactive ion etch is stopped on...
Tunable feedback transducer for transient friction measurement
A system for measuring transient friction of a head-disk interface in a magnetic disk storage device employs a servo system for accurate measurements. A first...
Photosensitive polyimide compositions
New photosensitive polyimide compositions and processes of using the same in the fabrication of electronic components are provided. These compositions are...