TB-6595
Page 1 of 9
© 2016 DESCO INDUSTRIES, INC.
Employee Owned
EMIT
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 664-9980 • Website:
DescoEMIT.com
IRIS Room Ionization System
Operation and Maintenance Instructions
Description
The EMIT Intelligent Room Ionization System (IRIS)
neutralizes electrostatic charges in an entire cubic
volume of a room environment. Applications for IRIS
include Electrostatic Discharge (ESD) and Electrostatic
Attraction (ESA).
Electrostatic Discharge is the presence of excess
charge on a surface which can create an electrostatic
field that causes the formation of a spark and damages
microelectronic components. IRIS creates a static
protective environment for ESD sensitive items by
reducing static charges on surfaces. Controlling surface
charge and static contamination is a key component
of optimum product handling procedure in a high yield
environment.
January 2016
Electrostatic Attraction is the presence of charged
surfaces that accelerate the deposition of particles of
opposite polarity, accelerating contamination within the
environment. IRIS reduces particle charge and surface
charge. Without mutual attraction, a particle will remain
suspended in the airflow, moving harmlessly by the
process and exiting through the air handler of the clean
room.
Item
Description
50849
IRIS Power Supply
50879
IRIS Tablet PC with TEAM5 IRIS Client
Software
The EMIT IRIS Room Ionization System meets the
ANSI/ESD S20.20-2007 required limit less than ±150
volts offset voltage (balance) tested in accordance
with ANSI/ESD STM3.1 for room ionization systems.
Per S20.20 Discharge Time required limits are “user
defined”. Compliance Verification per ANSI/ESD
S20.20 is to be per ESD TR53 using a Charged Plate
Monitor or a SP3.3 Ionization Test Kit.
ANSI/ESD S20.20 section 6.2.3.1 Protected Areas
Requirement states: “Ionization or other charge
mitigating techniques shall be used at the workstation
to neutralize electrostatic fields on all process essential
insulators if the electrostatic field is considered a
threat.” Air ionization can neutralize the static charge
on insulators (which cannot be grounded) and isolated
conductors (which are not grounded) by producing
separate charges in the molecules of the gases of
the surrounding air. When an electrostatic charge
is present on objects in the work environment, it will
be neutralized by attracting opposite polarity means
of charges from the ionized air. Note that ionization
systems should not be used as a primary means of
charge control on conductors or people [Reference: EN
61340-5-2 clause 5.2.9].
TECHNICAL BULLETIN TB-6595
Made in the
United States of America
Figure 1. EMIT IRIS Power Supply
Figure 2. EMIT IRIS Tablet PC with TEAM5 IRIS Client
Software
