A novel multianode electron detector chip (LEDA512) has been designed, fabricated and tested using a 0.7 μm complementary metal–oxide–semiconductor technology. This chip, mounted behind a stack of two microchannel plates, is used in a positive ion mass spectrometer selected by the European Space Agency for the ROSETTA cometary mission. Two functions are integrated on the chip: a dual row of 512 anodes, each having an area of 22 μm×8 mm for the collection of electrons, and two separate anode multiplexer and charge amplifier units. For redundancy reasons the chip has been designed such that the two anode rows with their associated electronics are identical and may be used independently with separate clocks and power supplies. Tests have confirmed that the LEDA512/microchannel plate combination is working properly as an ion detector and that excellent noise and response may be obtained in combination with the mass spectrometer.
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November 2000
Research Article|
November 01 2000
A complementary metal–oxide–semiconductor anode array chip with two rows of 512 anodes and dual integrated analog read-out circuitry
Dennis Nevejans;
Dennis Nevejans
BIRA-IASB, Belgian Institute for Space Aeronomy, Ringlaan 3, B-1180 Brussels, Belgium
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Eddy Neefs;
Eddy Neefs
BIRA-IASB, Belgian Institute for Space Aeronomy, Ringlaan 3, B-1180 Brussels, Belgium
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Spyros Kavadias;
Spyros Kavadias
IMEC, Kapeldreef 75, 3001 Leuven, Belgium
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Patrick Merken;
Patrick Merken
IMEC, Kapeldreef 75, 3001 Leuven, Belgium
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Chris Van Hoof;
Chris Van Hoof
IMEC, Kapeldreef 75, 3001 Leuven, Belgium
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Giuseppe Gramegna;
Giuseppe Gramegna
IMEC, Kapeldreef 75, 3001 Leuven, Belgium
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Johan Bastiaens;
Johan Bastiaens
IMEC, Kapeldreef 75, 3001 Leuven, Belgium
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Bart Dierickx
Bart Dierickx
IMEC, Kapeldreef 75, 3001 Leuven, Belgium
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Rev. Sci. Instrum. 71, 4300–4305 (2000)
Article history
Received:
June 27 2000
Accepted:
August 09 2000
Citation
Dennis Nevejans, Eddy Neefs, Spyros Kavadias, Patrick Merken, Chris Van Hoof, Giuseppe Gramegna, Johan Bastiaens, Bart Dierickx; A complementary metal–oxide–semiconductor anode array chip with two rows of 512 anodes and dual integrated analog read-out circuitry. Rev. Sci. Instrum. 1 November 2000; 71 (11): 4300–4305. https://doi.org/10.1063/1.1318924
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