Membrane multi-chipmodules (MCMs) have been fabricated to investigate both the electrical design and thermal management of advanced MCM systems. Custom bipolar interface circuits have been interconnected to CMOS VLSI...
详细信息
Membrane multi-chipmodules (MCMs) have been fabricated to investigate both the electrical design and thermal management of advanced MCM systems. Custom bipolar interface circuits have been interconnected to CMOS VLSI chips, achieving a chip-to-chip delay of 5.6 nsec compared with 7.9 nsec for wire bonded system. Integrated decoupling capacitors and bipolar transistors were utilized to reduce power supply noise across chips by a factor of 3.2. To further decrease the thermal resistance of the systems, water has been used to provide extra heat removal paths. The thermal resistance of the systems has been decreased from 25/spl deg/C/W to 17/spl deg/C/W with the sealed water.
Implementation of a novel modularly configured attached processor (MCAP) architecture was evaluated using 1 /spl mu/m CMOS logic on an MCM-D The transistor count was approximately ten million transistors, distributed ...
详细信息
Implementation of a novel modularly configured attached processor (MCAP) architecture was evaluated using 1 /spl mu/m CMOS logic on an MCM-D The transistor count was approximately ten million transistors, distributed on twenty-five chip dice. Delay, area, and power calculations were performed using the SUSPENS model. Rent's rule was found to be not applicable. Speed was calculated to be in the 100 MHz range. The module foot print was found to be 90 cm/sup 2/. Power dissipation per unit area was low enough to allow air cooling.
CMOS-based multichipmodules have been actively developed for achieving high performance and high speed systems. Simultaneous switching noise (SSN) induced by CMOS output buffers is a serious issue in multichipmodule...
详细信息
CMOS-based multichipmodules have been actively developed for achieving high performance and high speed systems. Simultaneous switching noise (SSN) induced by CMOS output buffers is a serious issue in multichipmodules as well as single-chip packages to ensure stable operation and to derive inherent speed performance. multichipmodules are expected to have smaller switching noise level than the case of single-chip packages by removing a first-level package and its parasitics. This paper reports the measurement results of switching noises for different types of MCMs using a switching noise generating chip. Two types of test vehicles were fabricated and measurement results were compared. Noise distribution on a ground plane was also measured.
This paper describes the first MCM module of the AFC program which implements the functionality of a 32-bit RISC radiation hardened space flight computer. This module was designed jointly by engineers at JPL and TRW u...
详细信息
This paper describes the first MCM module of the AFC program which implements the functionality of a 32-bit RISC radiation hardened space flight computer. This module was designed jointly by engineers at JPL and TRW using a collaborative partnership agreement. The MCM was fabbed at nchip Corporation. The AFC program also plans to design, develop, and fab two more MCM modules: the Mass Memory MCM, and Programmable I/O MCM. These three MCMs will then be stacked as part of a scalable (stackable) core avionics architecture. The flight computer MCM described in this pager contains 33 die in a single 2 by 4 inch AlN package from Coors, with a total of 442 pins. The MCM uses nchip's die stack approach for both SRAM and EEPROM.
The conference materials contain 29 papers. The topics covered include multichipmodule (MCM) infrastructure in Japan and the United states;ARPA MCM foundry status and future directions;MCM applications;test methodolo...
详细信息
ISBN:
(纸本)0818655623
The conference materials contain 29 papers. The topics covered include multichipmodule (MCM) infrastructure in Japan and the United states;ARPA MCM foundry status and future directions;MCM applications;test methodologies for MCMs;MCM design issues;novel MCM technologies;known good die technology;electrical modeling, simulation, and design;and partitioning strategies.
In this paper, a PQFP package design which holds a thin film MCM with four memory dice is described. The substrate design is briefly mentioned. We describe the strategy to integrate the MCM-D Al substrate into an exis...
详细信息
In this paper, a PQFP package design which holds a thin film MCM with four memory dice is described. The substrate design is briefly mentioned. We describe the strategy to integrate the MCM-D Al substrate into an existing standard package (i.e. 160 lead PQFP) with minimum cost to meet manufacturability and reliability requirements. This was achieved through minimal modifications to existing assembly processes, fixtures, and materials. Also discussed is material selection to meet the reliability stress tests goals with respect to thin film MCM corrosion and stress relief on high aspect ratio die sizes. Choice of molding compound, die attach and stress relief coatings and their impact on reliability are discussed. The proper selection of materials can eliminate a few assembly steps. The reliability qualification requirements and the qualification test results are also presented.
Many industrial applications require a higher power to volume ratio. Manufacturers have achieved switch functions composed of semiconductor chips connected in parallel within power modules. Therefore, we have develope...
详细信息
Many industrial applications require a higher power to volume ratio. Manufacturers have achieved switch functions composed of semiconductor chips connected in parallel within power modules. Therefore, we have developed a 3D electrothermal simulation tool which solves the heat conduction equation in stationary condition, and the electrical linear system of the parallel connection which takes into account the thermal behaviour of each chip. Thus, we are able to study some electrical and thermal imbalances of the power multi-chips module, and to contribute to a safe and reliable concept. This paper deals with the case of rectifier modules.
A newly advanced design of TAB/BGA multi-chip stacked module has been developed for high density LSI packages. Configuration of this module is designed to reduce package body size and to lighten the weight. Electrical...
详细信息
ISBN:
(纸本)0818655607
A newly advanced design of TAB/BGA multi-chip stacked module has been developed for high density LSI packages. 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 named as COCB module which means the chip On chip Ball Grid Array module. 2 chips are mounted on both top and bottom sides of small substrate by TAB technology using new Au-Sn (Au10-40% - Sn) eutectic micro-connection method. 2 chips are electrically connected by routing wires and through hole of 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 assembly line. In this paper we proposed a new concept of micro bare chipmodule.
CMOS-based multichipmodules have been actively developed for achieving high performance and high speed systems. Simultaneous switching noise (SSN) induced by CMOS output buffers is a serious issue in multichipmodule...
详细信息
ISBN:
(纸本)0818669705
CMOS-based multichipmodules have been actively developed for achieving high performance and high speed systems. Simultaneous switching noise (SSN) induced by CMOS output buffers is a serious issue in multichipmodules as well as single-chip packages to ensure stable operation and to derive inherent speed performance. multichipmodules are expected to have smaller switching noise level than the case of single-chip packages by removing a first-level package and its parasitics. This paper reports the measurement results of switching noises for different types of MCMs using a switching noise generating chip. Two types of test vehicles were fabricated and measurement results were compared. Noise distribution on a ground plane was also measured.
暂无评论