LIQUID CRYSTAL POLYMERS FOR ADVANCED INTERCONNECT SUBSTRATES

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$500,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
3939
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Foster-miller Inc.
350 Second Ave, Waltham, MA, 02254
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Richard W Lusignea
(617) 890-3200
Business Contact:
Research Institution:
n/a
Abstract
LIQUID CRYSTAL POLYMERS PROCESSED FROM ANISOTROPIC MELTS CAN BE USED FOR CIRCUIT SUBSTRATES TO SOLVE PACKAGING PROBLEMS FACING HIGH PERFORMANCE INTERCONNECT BOARD TECHNOLOGY. RECENT ADVANCES IN SMT (SURFACE MOUNT TECHNOLOGY), MULTILAYER BOARD CONSTRUCTION, AND HIGH SPEED DENSELY PACKED CIRCUITS HAVE OUTSTRIPPED THE DEVELOPMENT OF SUBSTRATES USED TO CONNECT MICROELECTRIC COMPONENTS. CERAMIC MATERIALS HAVE PLAYED AN IMPORTANT ROLE, BUT ARE TOO FRAGILE FOR MANY APPLICATIONS AND ARE CURRENTLY HAMPERED BY COMPLEX HIGH TEMPERATURE MANUFACTURING PROCESSES. XYDAR IS A LIQUID CRYSTAL POLYMER WHICH HAS THE MECHANICAL, THERMAL AND ELECTRICAL PROPERTIES NEEDED TO REPLACE CERAMIC MATERIALS. MOREOVER, IT CAN BE MELT-PROCESSED WHICH GREATLY IMPROVES MANUFACTURABILITY AND ALLOWS APPLICATIONS NOT POSSIBLE WITH CERAMICS (THIN FLEXIBLE CIRCUITS, USE OF PIN GRID ARRAYS, ETC.). THE PROPOSED PROGRAM WILL EVALUATE THE FEASIBILITY OF PROCESSING XYDAR INTO FILM AND USING IT AS AN ELECTRONIC SUBSTRATE. BECAUSE OF HIGH DEGREE OF MOLECULAR ORDER, THE COEFFICIENT OF THERMAL EXPANSION CAN BE MATCHED TO SMDS BY MEANS OF CONTROLLED BIAXIAL ORIENTATION OF XYDAR FILMS. BONDING OF CONDUCTING PATHS AND LAMINATION OF MULTIPLE LAYERS WILL BE EVALUATED.

* information listed above is at the time of submission.

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