This paper describes the AM06 chip, which is a highly parallel processor for pattern recognition in the ATLAS high energy physics experiment. The AM06 contains memory banks that store data organized in 18 bit words; a group of 8 words is called "pattern". Each AM06 chip can store up to 131 072 patterns. The AM06 is a large chip, designed in 65 nm CMOS, and it combines full-custom memory arrays, standard logic cells and serializer/deserializer IP blocks at 2 Gbit/s for input/output communication. The overall silicon area is 168 mm2 and the chip contains about 421 million transistors. The AM06 receives the detector data for each event accepted by Level-1 trigger, up to 100 kHz, and it performs a track reconstruction based on hit information from channels of the ATLAS silicon detectors. Thanks to the design of a new associative memory cell and to the layout optimization, the AM06 consumption is only about 1 fJ/bit per comparison. The AM06 has been fabricated and successfully tested with a dedicated test system.
|Titolo:||AM06: The Associative Memory chip for the Fast TracKer in the upgraded ATLAS detector|
|Parole Chiave:||Digital electronic circuits; Trigger concepts and systems (hardware and software); VLSI circuits|
|Settore Scientifico Disciplinare:||Settore ING-INF/01 - Elettronica|
Settore FIS/01 - Fisica Sperimentale
|Data di pubblicazione:||2017|
|Digital Object Identifier (DOI):||10.1088/1748-0221/12/04/C04013|
|Appare nelle tipologie:||01 - Articolo su periodico|