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Title: Focal plane array with modular pixel array components for scalability

Abstract

A modular, scalable focal plane array is provided as an array of integrated circuit dice, wherein each die includes a given amount of modular pixel array circuitry. The array of dice effectively multiplies the amount of modular pixel array circuitry to produce a larger pixel array without increasing die size. Desired pixel pitch across the enlarged pixel array is preserved by forming die stacks with each pixel array circuitry die stacked on a separate die that contains the corresponding signal processing circuitry. Techniques for die stack interconnections and die stack placement are implemented to ensure that the desired pixel pitch is preserved across the enlarged pixel array.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1165103
Patent Number(s):
8,907,439
Application Number:
13/163,909
Assignee:
Sandia Corporation (Albuquerque, NM) SSO
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jun 20
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING

Citation Formats

Kay, Randolph R, Campbell, David V, Shinde, Subhash L, Rienstra, Jeffrey L, Serkland, Darwin K, and Holmes, Michael L. Focal plane array with modular pixel array components for scalability. United States: N. p., 2014. Web.
Kay, Randolph R, Campbell, David V, Shinde, Subhash L, Rienstra, Jeffrey L, Serkland, Darwin K, & Holmes, Michael L. Focal plane array with modular pixel array components for scalability. United States.
Kay, Randolph R, Campbell, David V, Shinde, Subhash L, Rienstra, Jeffrey L, Serkland, Darwin K, and Holmes, Michael L. Tue . "Focal plane array with modular pixel array components for scalability". United States. doi:. https://www.osti.gov/servlets/purl/1165103.
@article{osti_1165103,
title = {Focal plane array with modular pixel array components for scalability},
author = {Kay, Randolph R and Campbell, David V and Shinde, Subhash L and Rienstra, Jeffrey L and Serkland, Darwin K and Holmes, Michael L},
abstractNote = {A modular, scalable focal plane array is provided as an array of integrated circuit dice, wherein each die includes a given amount of modular pixel array circuitry. The array of dice effectively multiplies the amount of modular pixel array circuitry to produce a larger pixel array without increasing die size. Desired pixel pitch across the enlarged pixel array is preserved by forming die stacks with each pixel array circuitry die stacked on a separate die that contains the corresponding signal processing circuitry. Techniques for die stack interconnections and die stack placement are implemented to ensure that the desired pixel pitch is preserved across the enlarged pixel array.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 09 00:00:00 EST 2014},
month = {Tue Dec 09 00:00:00 EST 2014}
}

Patent:

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  • A high performance, focal plane miniature mass spectrometer (MMS) of Mattauch-Herzog geometry with a CCD-based array detector for the direct and simultaneous measurements of different mass ions is described. Miniaturization (10 cmx5 cmx5 cm,395 g) was accomplished by using high-energy-product magnet material (Nd-B-Fe alloy) and a high permeability yoke material (V-Co-Fe Alloy) for the fabrication of the magnetic sector. The electrostatic sector was machined from a single piece of machinable ceramic (MACOR). All the components of the analyzer are mounted on a single plate, which facilitate their alignment and make the instrument rugged. The modified-CCD based ion detector array hasmore » 1000 elements (20 {mu}mx2 mm) and was invented in our laboratory. The photosensitive part of the CCD was replaced with a metal-oxide-semiconductor (MOS) capacitor for ion detection. The ion sensing capacitor plates are connected to the CCD gates that are operated in the fill-and spill mode providing a gain in the charge domain for the signal ions and minimizing various noises during measurements. The results reported in this article are the first application of this detector array for direct ion measurement and successfully prove the new technology. The MMS with the array detector can measure masses up to 250 u with a unit mass resolution and expected to possess a sensitivity of detecting {approx}5 ions. The above attributes make MMS suitable for space applications for isotopic and chemical analysis and also for field applications on earth.« less
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  • An infrared focal plane array (FPA) is disclosed which utilizes a strained-layer superlattice (SLS) formed of alternating layers of InAs and In.sub.xGa.sub.1-xSb with 0.ltoreq.x.ltoreq.0.5 epitaxially grown on a GaSb substrate. The FPA avoids the use of a mesa structure to isolate each photodetector element and instead uses impurity-doped regions formed in or about each photodetector for electrical isolation. This results in a substantially-planar structure in which the SLS is unbroken across the entire width of a 2-D array of the photodetector elements which are capped with an epitaxially-grown passivation layer to reduce or eliminate surface recombination. The FPA has applicationsmore » for use in the wavelength range of 3-25 .mu.m.« less
  • An infrared focal plane array (FPA) is disclosed which utilizes a strained-layer superlattice (SLS) formed of alternating layers of InAs and In.sub.xGa.sub.1-xSb with 0.ltoreq.x.ltoreq.0.5 epitaxially grown on a GaSb substrate. The FPA avoids the use of a mesa structure to isolate each photodetector element and instead uses impurity-doped regions formed in or about each photodetector for electrical isolation. This results in a substantially-planar structure in which the SLS is unbroken across the entire width of a 2-D array of the photodetector elements which are capped with an epitaxially-grown passivation layer to reduce or eliminate surface recombination. The FPA has applicationsmore » for use in the wavelength range of 3-25 .mu.m.« less