摘要:
Packaging of "image-lift" components wherein a unitary mount is used for integrating optical/thermal components, mounting them under a working platform of an operating structure to be simply, removably coupled to this platform, and arranged to thereby thermally-optically isolate these components from interference with, or by, this operating structure.
摘要:
A programmable unit for attachment to a work-station whereby power to the work-station will be shut off after a pre-set time-period, unless work-station activity occurs before the outset of the time-period, when the pre-set time-period will initiate again.
摘要:
A system for controlling communication in a network of digital modules where each digital module has a maintenance processor which connects the digital module through a network bus to every other digital module's maintenance processor. Each transmitting module can lock up the network bus temporarily for data transmission operations to a specifically addressed receiver module. This system basically permits free communication access of any digital module to any other digital module.
摘要:
An integrated complementary transistor circuit at an intermediate stage of manufacturing comprises a semiconductor substrate having dopant atoms of a first conductivity type and having a substantially flat major surface; a patterned layer of material that is essentially impervious to oxygen diffusion covering first and second spaced apart areas on the surface and having openings which expose the surface between the areas; a channel stop region having dopant atoms of the first conductivity type with a larger doping concentration than the substrate throughout that portion of the surface which is exposed by the openings; and a well region having dopant atoms of a second conductivity type opposite to the first type in the substrate under all of the second area and extending under an adjacent portion of the channel stop region but terminating before reaching the first area; the well region also having a depth and doping concentration at the center of the second area which is substantially smaller than the depth and doping concentration below the channel stop region and adjacent portion of the second area.
摘要:
An electro-optical system includes a phototransistor having collector and emitter electrodes and adapted to receive modulated light representing data and generating current in a current flow path representative of the received light. A load is placed in the current flow path and generates a voltage due to the current flow, and means are provided for sensing the generated voltage and using that voltage in a feedback circuit to the phototransistor to maintain the collector base junction voltage of the phototransistor constant.
摘要:
A parallel register-transfer mechanism has been disclosed above for use in the evaluation of expressions of a variable-free applicative language stored as binary directed graphs. The expression is reduced through a series of transformations until a result is obtained. A register file is provided with several crossbar networks interconnecting the various registers in the file for simultaneous transfer of their contents.
摘要:
An integrated circuit package comprises a plurality of thin flat epoxy-glass layers which are arranged in a stack and are laminated together by prepreg layers that lie between the epoxy-glass layers. This stack has a cavity which is staircase-shaped and extends from an outer epoxy-glass layer to an internal epoxy-glass layer, goes parallel along the internal epoxy-glass layer and then penetrates through it. Patterned electrical conductors lie on the flat surface of the internal epoxy-glass layer, including wire bonding pads on its exposed flat surface portion.
摘要:
An integrated circuit package for high density applications comprises spring contacts on one face thereof for its removable mounting onto a printed circuit board, the mounting being accomplished by means of a frame assembly and the package being automatically fabricable in a continuous flow process involving its assembly on a transport tape and its final cutting therefrom.
摘要:
An integrated circuit package is fabricated by assembling a stack which is comprised of a plurality of thin flat epoxy-glass layers, adhesive layers between the epoxy-glass layers, and a staircase-shaped cavity. This cavity extends from an outer epoxy-glass layer to an internal epoxy-glass layer, goes parallel along a portion of the flat surface of the internal epoxy-glass layer, and then penetrates through it. Conductors lie on the internal epoxy-glass layer including bonding pads on the flat surface portion. After the stack is assembled, the outer epoxy-glass layer and the cavity are covered with an elastic bladder. Subsequently, the stack is laminated by forcing a fluid into the bladder at a temperature and pressure which causes the bladder's membrane to stretch and push against all the surfaces of the cavity. This dams the adhesive from flowing onto the bonding pads.