American Optical Corporation

Mrs Technology, Inc.

Robert A McEachern

George A Cavigelli

Robert L Cannon, Iii

Christopher C Day

Craig R Simpson

Griffith L Resor, Iii

Mark S Lucas

Walter H Worth

William C Schneider

Two lithographic substrate stages are used in a single lithographic system. While a substrate on one stage is being exposed, a second substrate is being loaded, unloaded, or aligned on a second stage. After exposure, the first stage is unloaded, reloaded, and the newly-loaded substrate is aligned, while the second substrate on the second stage is being exposed. The two stages are thus used alternately in different steps of the process. One of the steps is being performed on one stage while a different step is being performed on the other stage. The substrates on both stages are, therefore, being acted upon simultaneously. The two stages are carried on a single linear motor platen, and moved about the platen by use of linear motors. The two stages alternately both move in clockwise directions about the platen, or both move in counterclockwise directions. When both move in clockwise directions, the first stage is moving to the exposure position, and the second stage is moving to the unload/load/align station. When they both move in counterclockwise directions, the second stage is moving to the exposure position and the first stage is moving to the unload/load/align station.

Lithography System using dual substrate stages

Apparatus for projecting multiple images from a pair of reticles (117) to a photo-sensitive coated substrate (1) to produce large scale electronic devices (2). A pair of parallel and proximate optical systems (29) are used, the optical systems being positioned to project in the z-direction upon a movable stage (11) subject to controlled motion (159, 169) in the x- and y-directions. The apparatus includes means (225) for determining the coordinates of motion of the stage relative to images projected from the reticles, means for using the determined positions to establish a stage transfer function for the apparatus relative to various positions of stage, and means (130) for applying the transfer function to adjust the relative positions of the reticles (117) and substrate (1) for accurate image projection, and for thereafter projecting an image upon the substrate. The stage is then stepped to a position to permit projection of an abutting image, and the transfer function is used to adjust the relative positions of the reticles (117) and substrate (1) for accurate image projection for projecting the abutting image upon the substrate (1). The steps are repeated until sufficient images have been projected upon the substrate to make up one integrated layer of a flat panel display or other large scale electronic device. After treating the photosensitive layer, subsequent layers are produced in a similar manner.

Apparatus and method for making large area electronic devices, such as

In apparatus such as a defibrillator having a CRT display of an ECG wave, and an alternative display of the firing time of the defibrillator pulse in relation to the ECG wave, the inclusion of method and apparatus for orienting the waveform to a synchronization indicator. In the preferred form, the display is a single, non-fade stationary complex of the ECG wave starting prior to the occurrence of the oriented 'P' wave. The display is timed through combination of clocking pulses responsive to a wave detection apparatus and a recirculating memory which establishes an orienting marker. The clock pulsing includes a predetermined delay to initiation of display from the data recirculating memory such that the data display is coordinated in time to a fixed reference.

Method and apparatus for orienting the display of information from a

A defibrillator, or alternatively, paddles therefor adapted with the wave-forming inductance of the discharge circuit disposed between the two paddles of the discharge circuit of the defibrillator and is so disposed in the paddles as to couple in a cancelling manner when the paddles are placed face-to-face. In a preferred embodiment, the waveform inductance is split substantially equally in each of the two paddles wherein each of the inductors have a value of substantially half the total necessary inductance for the forming of the waveform for the defibrillating wave. The respective coils of the inductors are wound in reverse directions, one with respect to the other so that the total inductance generated in a discharge directly through the paddles is substantially nil.

Reversal protection for RLC defibrillator

In a defibrillator/monitor having first electrodes for applying the defibrillating signal and second electrodes for monitoring physiological conditions and switch means for connecting the active leads to the defibrillator monitor through an isolation amplifier the inclusion of additional isolation amplification means intermediate the defibrillating electrodes and the switch means to prevent current leakage between the two electrode systems during the application of the defibrillating signal.

Heart defibrillating and monitoring system

A system for the enhanced display of event markers in time-related association with physiological waveforms displayed on cathode ray tubes which use a recirculating memory to provide a refreshed display. The event is marked in the displayed waveform by an intensification of the normal trace determined by the time-related occurrence of the event and comprises a first modulation of the displayed waveform. A secondary event-controlled modulation of the primary modulated display serves to further enhance and accurately identify the occurrence and timing of the event marker in the display. This enhanced display of event markers is further utilized to distinguish a marker of one type from a marker of another type utilizing particular data coding in the memory and appropriate detection logic for recovering data from memory. The enhanced display is particularly useful for clearly marking events occurring in timed-relationship with a patient's cardiac cycle.

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Wellesley, MA, United States of America

Robert A McEachern