摘要:
Circuit structures and methods of fabrication are provided for facilitating implementing a complete electronic system in a compact package. The circuit structure includes, in one embodiment, a chips-first multichip base layer with conductive structures extending therethrough. An interconnect layer is disposed over the front surface of the multichip layer and includes interconnect metallization electrically connected to contact pads of the chips and to conductive structures extending through the structural material. A redistribution layer, disposed over the back surface of the multichip layer, includes a redistribution metallization also electrically connected to conductive structures extending through the structural material. Input/output contacts are arrayed over the redistribution layer, including over the lower surfaces of at least some integrated circuit chips within the multichip layer, and are electrically connected through the redistribution metallization, conductive structures, and interconnect metallization to contact pads of the integrated circuit chips of the multichip layer.
摘要:
Packaging methods and configurations are disclosed for placing electronic integrated circuit chips into operable chip systems in a manner to facilitate burn-in and testability thereof. The invention addresses the problem of testing bare integrated circuit chips before they are committed to a multichip module. Further, it addresses the problem of burning-in bare chips under biased conditions so that chips with defects therein can be accelerated to failure, thereby avoiding their incorporation into a multichip integrated circuit module. Pursuant to the invention, special connection arrays are disposed in spacer blocks in a predetermined configuation on a substrate. The blocks define areas of the substrate which preferably accommodate a plurality of integrated circuit chips such that each chip is surrounded on each side by a spacer block. One or more connection arrays may be provided in each spacer block. The connection arrays have interconnection pads which in the final structure are accessible to an external probing device. Specific methods of fabrication are also disclosed.
摘要:
An apparatus for controlling distributed electrical loads including a microprocessor based central controller coupled via a twisted pair bidirectional data line to a plurality of microcomputer based transceiver decoders. Each transceiver decoder is coupled to a plurality of relays, each relay associated with a particular load to be controlled. Override switches and sensors, coupled to transceiver decoders provide override requests and information related to amibient conditions at the site of a load. A user defined data base includes sub-sets of relays called sectors, patterns of relay states, remote switches, a time dependent schedule and condition responses. A communication protocall and arbitration scheme provide for interactive communication between the central controller and each transceiver decoder with interfacing with the operation of any other transceiver decoder. Enhanced data storage capacity is achieved through dynamic allocation of memory space for pattern data. This divisional application is particularly directed to an improvement in the transceiver decoder permitting it to accumulate data from switch actuations and then transmit this accumulated data to the central controller whenever the transceiver decoder can gain access to the twisted pair data line.
摘要:
A charge transfer circuit of the type including first and second capacitors separated by a charge transfer MOSFET is disclosed. The disclosure includes the description of a circuit which compensates for variations in the threshold voltage of the charge transfer MOSFET such that the magnitude of the charge packet transferred from the first to the second capacitor is substantially independent of changes in the magnitude of the threshold voltage.
摘要:
A reference voltage source, relatively insensitive to changes in ambient temperature and supply voltage, utilizes a plurality of charge transfer amplifiers each having a temperature-stable amplification factor determined essentially by the ratio of two capacitances and independent of temperature-related factors. The amplifiers operate to provide a punch-through reference device with a constant current to cause generation of a stable reference voltage.
摘要:
A charge transfer circuit of the type including first and second capacitors and a charge transfer transistor for transferring discrete packets of charge from the first to the second capacitor is disclosed. The charge transfer circuit includes a feedback circuit which recharges the first capacitor to a value which varies as a function of the threshold voltage of the charge transfer transistor. As a result, the magnitude of the charge packets transferred by the charge transfer remain at a predetermined value irrespective of variations in the threshold voltage of the transistor.
摘要:
An electronic temperature sensor utilizing monolithic charge transfer circuitry is disclosed. A first charge transfer circuit supplies a charge storage element with N.sub.1 first charge packets, N.sub.1 being the number of charge packets required to change the charge stored by the charge storage element from a first to a second value. A second charge transfer circuit supplies the charge storage element with N.sub.2 second charge packets, N.sub.2 being the number of charge packets required to change the charge stored by the charge storage element from the first to the second value. The magnitude of the second charge packet varies from the magnitude of first packet as the linear function of the temperature to the sensor. A counter generates an output signal which is a function of the difference between N.sub.1 and N.sub.2 and which is indicative of the magnitude of the temperature to be sensed.
摘要:
An analog-to-digital converter is described including scaling means for providing an output based on a preselected scale factor. Conversion is made by selectively transferring charge from a charge storage location in discrete quanta the size of which are adjusted during the course of conversion in order to eliminate certain sources of error including threshold drift, leakage and transistor gain drift.
摘要:
A charge transfer analog-to-digital converter is described wherein an analog signal is converted to a digital equivalent thereof in a structure suitable to be implemented in MOS form. A dual slope technique is employed wherein the digital output is the ratio between the input signal and a reference signal.
摘要:
A unknown value of capacitance is determined by the repeated transfer of quantities of charge from a potential store in amounts proportional to the value of the unknown capacitance. Transfer is accomplished during at least two distinct periods of a measurement cycle so that capacitance may be expressed as a ratio of a known and an unknown capacitance in order to eliminate certain circuit related errors.