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Title: Manufacturing and testing VLPC hybrids

Abstract

To insure that the manufacture of VLPC devices is a reliable, cost-effective technology, hybrid assembly procedures and testing methods suitable for large scale production have been developed. This technology has been developed under a contract from Fermilab as part of the D-Zero upgrade program. Each assembled hybrid consists of a VLPC chip mounted on an AlN substrate. The VLPC chip is provided with bonding pads (one connected to each pixel) which are wire bonded to gold traces on the substrate. The VLPC/AlN hybrids are mated in a vacuum sealer using solder preforms and a specially designed carbon boat. After mating, the VLPC pads are bonded to the substrate with an automatic wire bonder. Using this equipment we have achieved a thickness tolerance of {+-}0.0007 inches and a production rate of 100 parts per hour. After assembly the VLPCs are tested for optical response at an operating temperature of 7K. The parts are tested in a custom designed continuous-flow dewar with a capacity 15 hybrids, and one Lake Shore DT470-SD-11 calibrated temperature sensor mounted to an AlN substrate. Our facility includes five of these dewars with an ultimate test capacity of 75 parts per day. During the course of the Dzeromore » program we have assembled more than 4,000 VLPC hybrids and have tested more than 2,500 with a high yield.« less

Authors:
; ;  [1]
  1. Guidance, Navigation and Sensors, Boeing (United States)
Publication Date:
OSTI Identifier:
21199304
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 450; Journal Issue: 1; Conference: SCIFI97: 3. conference on scintillating and fiber detectors, Notre Dame, IN (United States), 2-6 Nov 1997; Other Information: DOI: 10.1063/1.56979; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ALUMINIUM NITRIDES; CARBON; DESIGN; EVALUATION; FERMILAB; GOLD; MANUFACTURING; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PARTICLE TRACKS; PERFORMANCE TESTING; RADIATION DETECTION; SENSORS; SOLID SCINTILLATION DETECTORS; SUBSTRATES

Citation Formats

Adkins, L R, Ingram, C M, and Anderson, E J. Manufacturing and testing VLPC hybrids. United States: N. p., 1998. Web. doi:10.1063/1.56979.
Adkins, L R, Ingram, C M, & Anderson, E J. Manufacturing and testing VLPC hybrids. United States. https://doi.org/10.1063/1.56979
Adkins, L R, Ingram, C M, and Anderson, E J. Mon . "Manufacturing and testing VLPC hybrids". United States. https://doi.org/10.1063/1.56979.
@article{osti_21199304,
title = {Manufacturing and testing VLPC hybrids},
author = {Adkins, L R and Ingram, C M and Anderson, E J},
abstractNote = {To insure that the manufacture of VLPC devices is a reliable, cost-effective technology, hybrid assembly procedures and testing methods suitable for large scale production have been developed. This technology has been developed under a contract from Fermilab as part of the D-Zero upgrade program. Each assembled hybrid consists of a VLPC chip mounted on an AlN substrate. The VLPC chip is provided with bonding pads (one connected to each pixel) which are wire bonded to gold traces on the substrate. The VLPC/AlN hybrids are mated in a vacuum sealer using solder preforms and a specially designed carbon boat. After mating, the VLPC pads are bonded to the substrate with an automatic wire bonder. Using this equipment we have achieved a thickness tolerance of {+-}0.0007 inches and a production rate of 100 parts per hour. After assembly the VLPCs are tested for optical response at an operating temperature of 7K. The parts are tested in a custom designed continuous-flow dewar with a capacity 15 hybrids, and one Lake Shore DT470-SD-11 calibrated temperature sensor mounted to an AlN substrate. Our facility includes five of these dewars with an ultimate test capacity of 75 parts per day. During the course of the Dzero program we have assembled more than 4,000 VLPC hybrids and have tested more than 2,500 with a high yield.},
doi = {10.1063/1.56979},
url = {https://www.osti.gov/biblio/21199304}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 450,
place = {United States},
year = {1998},
month = {11}
}