Field Programmable multi-chipmodule (FPMC-I) integrates multiple FPGA chips by multi-chipmodule (MCM) technology, thereby significantly increasing the logic capacity, reducing power consumption and speeding up the c...
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Field Programmable multi-chipmodule (FPMC-I) integrates multiple FPGA chips by multi-chipmodule (MCM) technology, thereby significantly increasing the logic capacity, reducing power consumption and speeding up the chip-to-chip communication. Bit-serial datapath circuit designs and their advantages over bit-parallel circuits on FPGA implementation are described. Some circuit layout examples of 2D FIR filter and IDCT circuits in terms of logic resource utilization, routability, 10 pin utilization and performance are presented.
The requirement for dense interconnect in artificial neural network systems has led researchers to seek high-density interconnect technologies. This paper reports an implementation using multi-chipmodules (MCMs) as t...
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ISBN:
(纸本)0818655623
The requirement for dense interconnect in artificial neural network systems has led researchers to seek high-density interconnect technologies. This paper reports an implementation using multi-chipmodules (MCMs) as the interconnect medium. The specific system described is a self-organizing, parallel, and dynamic learning model which requires a dense interconnect technology for effective implementation;this requirement is fulfilled by exploiting MCM technology. The ideas presented in this paper regarding an MCM implementation of artificial neural networks are versatile and can be adapted to apply to other neural network and connectionist models.
A method of distributing clock to and on a PentiumTM-based CPU module was designed and produced. multiple clock driver outputs are connected in parallel and drive a PC board trace through a series termination resistor...
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ISBN:
(纸本)0818655623
A method of distributing clock to and on a PentiumTM-based CPU module was designed and produced. multiple clock driver outputs are connected in parallel and drive a PC board trace through a series termination resistor to the input of the module. On the module, the clock inputs to 20 dice are connected together and brought to a single PGA pin. The effect of varying termination resistance, PWB foil characteristic impedance, and foil length on the clock waveform characteristics including skew, edge rate, overshoot, and time of flight were determined.
To address the needs of cost driven, mixed signal applications, we have developed a silicon-on-silicon technology that incorporates both passive and active devices in the module substrate. The technology combines a si...
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ISBN:
(纸本)0818655623
To address the needs of cost driven, mixed signal applications, we have developed a silicon-on-silicon technology that incorporates both passive and active devices in the module substrate. The technology combines a simple, double-diffused epitaxial bipolar technology with our thin-film MCMs. We describe the basic elements of the technology, typical active device properties and some examples of their use in a low-cost MCM.
multi-chip-module on a laminated epoxy-glass substrate (MCM-L) meets the demand for a low cost miniaturized module when many functions with different technologies need to be integrated in a single standard package. Th...
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ISBN:
(纸本)0930815394
multi-chip-module on a laminated epoxy-glass substrate (MCM-L) meets the demand for a low cost miniaturized module when many functions with different technologies need to be integrated in a single standard package. The following paper presents two original MCM-L designs using chip On Board (COB) technology. Both are made on the same kind of modified multilayer glass epoxy ; one is equiped with J lead ouput pins allowing the mounting of dice on both faces, the second is very thin with dice mounted on the top face and bumps on the bottom face allowing direct soldering on the motherboard like other Surface Mount Device (SMD) components. These two kinds of MCM modules with Jedec standard dimensions are now pushed into production. Mounting procedure as well as qualification program and test approach are described. To ensure reliability of such MCMs it becomes important to know exactly the maximal stress and deformation induced by thermal or mechanical cycles during mounting procedure. The use of the Finite Element Method (FEM) for design optimization is explained. This method allows the calculation of deformation, stress and temperature distribution in the whole module during the development phase. The results of such simulation are presented here.
Placement and routing heuristics for a Field Programmable multi-chipmodule (FPMCM) are presented. The placement is done in three phases;partitioning, chip assignment and iterative improvement. The routing is done in ...
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ISBN:
(纸本)9780897916530
Placement and routing heuristics for a Field Programmable multi-chipmodule (FPMCM) are presented. The placement is done in three phases;partitioning, chip assignment and iterative improvement. The routing is done in two phases;global routing followed by detailed routing. Detailed routing involves new channel routing problems denoted by Exact Segmented Channel Routing (ESCR) and K-ESCR. A very fast K-ESCR heuristic is described. Experimental results show that the placement heuristic achieves high gate utilization, and that the K-ESCR heuristic performs surprisingly well over wide range of channel sizes.
A new approach to build multi-chipmodules (MCMs) using active silicon substrate (ASIS) technology is being developed by Lockheed for future sensor signal processing and control applications. The ASIS MCM inherently o...
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The multi-chipmodule (MCM) has yet to make its mark in the high volume computer arena but this situation should change soon. High chip and module connection densities are the drivers that will ultimately make MCMs th...
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The multi-chipmodule (MCM) has yet to make its mark in the high volume computer arena but this situation should change soon. High chip and module connection densities are the drivers that will ultimately make MCMs the choice for many applications. Of course, for this to happen, they will have to be cost competitive when compared to alternative approaches. This, too, will happen. As a result, the art of designing an MCM will become a desirable skill. Designing an MCM is the first step in determining whether your application should include an MCM. This paper shows how to do that.< >
A newly advanced design for a TAB/BGA multi-chip stacked module has been developed for high density LSI packages. The configuration of this module is designed to reduce package body size and to lighten the weight. Ele...
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A newly advanced design for a TAB/BGA multi-chip stacked module has been developed for high density LSI packages. The configuration of this module is designed to reduce package body size and to lighten the weight. Electrical and thermal performance of this module was carefully considered and estimated by simulation or experiments. This module is called a COCB module which means the chip On chip Ball Grid Array module. Two chips are mounted on both top and bottom sides of a small substrate by TAB technology using a new Au-Sn (Au10-40%-Sn) eutectic micro-connection method. Two chips are electrically connected by routing wires and through holes of an interposed substrate respectively. This module is useful when packages are mounted on a board with solder paste, directly to its surface, with some discrete packages on the assembly line. The authors propose the concept of the micro bare chipmodule.< >
A method of distributing clock to and on a Pentium-based CPU module was designed and produced. multiple clock driver outputs are connected in parallel and drive a PC board trace through a series termination resistor t...
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A method of distributing clock to and on a Pentium-based CPU module was designed and produced. multiple clock driver outputs are connected in parallel and drive a PC board trace through a series termination resistor to the input of the module. On the module, the clock inputs to 20 dice are connected together and brought to a single PGA pin. The effect of varying termination resistance, PWB foil characteristic impedance, and foil length on the clock waveform characteristics including skew, edge rate, overshoot, and time of flight were determined.< >
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