Rev. AX5 Draft Page 9
a
Chapter 2: Theory of Operation
AdvanTag Reader
The AdvanTag Reader, designed to meet SEMI and Carrier ID standards, reads and
writes to the MicroTag embedded in wafer cassettes, pods, FOUPs, reticle boxes, etc.
The AdvanTag stores and automatically communicates detailed lot information to a
process tool and fab CIM upon arrival at a load port or during transport in the AMHS.
The main component of this unit is a transmitter that generates radio waves through an
antenna. This Tiris compatible, low-frequency (134.2 kHz), low-power RF energy is used
to read from or write to a transponder near the antenna. The RFID Reader/Writer
provides serial communication with a host through an RS-232 port, using either SECS or
ASCII. It also supports HSMS protocol on its LAN Port and CAN open protocol on its CAN
port. Power is supplied by an external source.
Operating program is field upgradeable via download over the serial host connection.
This unit is designed for versatile installation in many different situations. It can be
installed within OEM tools, within load ports, inside stockers, and on tabletops. Once a
power source, an external antenna, and a communication cable have been connected
and the reader's address (TargetID and DeviceID as described in “Communications” on
page 28) has been set, it is possible to communicate using Stream 18 SECS messages
or ASCII messages (depending on the host protocol being used).
The software and hardware provide integrated self-test and diagnostics. A watchdog
timer and non-volatile memory provide power-failure recovery.
The AdvanTag operates on 24V DC (±10%) supplied by an external power source.
Communication is through a RS232 port, CAN Bus port (only for communicating with the
Gateway), or the LAN port.
F
IGURE 2 AdvanTag Top View
LEDs
Ports
To Next Page
Loading...