This document is targeted at driver, GaN green, GaN blue, and GaN white LED devices.
The following precautions should be observed from Arrival to Shipping
ELECTROSTATIC DISCHARGE (ESD)
When handling individual devices (which are not yet mounted on a printed circuit board), be sure that the environment is protected
against electrostatic electricity. Operators should wear anti-static clothing. Containers and other objects that come into direct contact
with devices should be made of anti-static materials and should be grounded to earth via a 0.5- to 1.0-
protective resistor. Please
follow the precautions described below; this is particularly important for devices which are marked "Caution - Electrostatic Sensitive
Devices".
WORK ENVIRONMENT
1. When humidity in the working environment decreases, the human body and other insulators can easily become charged with static
electricity due to friction. Maintain the recommended humidity of 40% to 60% in the work environment, while also taking into account
the fact that moisture-proof-packed products may absorb moisture after unpacking.
2. Be sure that all equipment, jigs and tools in the working area are grounded to earth.
3. Place a conductive mat over the floor of the work area, or take other appropriate measures, so that the floor surface is protected
against static electricity and is grounded to earth. The surface resistivity should be 10
4
to 10
8
/sq and the resistance between surface
and ground, 7.5 x 10
5
to 10
8
.
4. Cover the workbench surface with a conductive mat (with a surface resisitivity of 10
4
to 10
8
/sq, for a resistance between surface
and ground of 7.5 x 10
5
to 10
8
). The purpose of this is to disperse static electricity on the surface (through resistive components) and
ground it to earth. Workbench surfaces must not be constructed of low-resistance metallic materials that allow rapid static discharge
when a charged device touches them directly.
5. Pay attention to the following points when using automatic equipment in your workplace:
When picking up IC's with a vacuum unit, use a conductive rubber fitting at the end of the pick-up wand to protect against
electrostatic charge.
Minimize friction on IC package surfaces. If some rubbing is unavoidable due to the device's mechanical structure,
minimize the friction plane or use material with a small friction coefficient and low electrical resistance. Also consider the
use of an ionizer.
In sections that come into contact with device lead terminals, use a material that dissipates static electricity.
Ensure that no statically charged bodies (such as work clothes or the human body) touch the devices.
Make sure that sections of the tape carrier which come into contact with installation devices or other electrical machinery
are made of a low-resistance material.
Make sure that jigs and tools used in the assembly process do not touch devices.
In processes in which packages may retain an electrostatic charge, use an ionizer to neutralize the ions.
Corporate Headquarters
120 Broadway
Menands, New York 12203
800.984.5337 Fax: 518.432.7454
Web Site: www.marktechopto.com
Email: info@marktechopto.com
West Coast Sales Office
100 Oceangate Blvd.
Long Beach, California 90802
800.984.5337 Fax: 562.628.5572
Web Site: www.marktechopto.com
Email l.dodge@marktechopto.com
ESD PRECA
ESD PRECAUTIONS FOR
UTIONS FOR
ST
STA
ATIC SENSITIVE DEVICES
TIC SENSITIVE DEVICES
OPERATING ENVIRONMENT
Operators must wear anti-static clothing and conductive shoes (or a leg or heel strap).
Operators must wear a wrist strap grounded to earth via a resistor of about 1M
.
Soldering irons must be grounded from iron tip to earth, and must be used only at low voltages (6V to 24V).
If the tweezers you use are likely to touch the device terminals, use anti-static tweezers and in particular avoid metallic
tweezers. If a charged device touches a low-resistance tool, rapid discharge can occur. When using vacuum tweezers,
attach a conductive chucking pat to the tip and connect it to a dedicated ground used especially for anti-static purposes
(suggested resistance value: 10
4
to 10
8
).
Do not place devices or their containers near sources of strong electrical fields (such as above a CRT).
When storing printed circuit boards which have devices mounted on them, use a board container or bag that is protected
against static discharge. To avoid the occurrence of static charge or discharge due to friction, keep the boards separate
from one another and do not stack them directly on top of one another.
Ensure if possible, that any articles (such as clipboards) which are brought to any location where the level of static electric
ity must be closely controlled are constructed of anti-static materials.
In cases where the human body comes in direct contact with a device, be sure to wear anti-static finger covers or gloves
(suggested resistance value: 10
8
or less).
Equipment safety covers installed near devices should have resistance ratings of 10
9
or less.
If a wrist strap cannot be used for some reason, and there is a possibility of imparting friction to devices, use an ionizer.
The transport film used in TCP products is manufactured from materials in which static charges tend to build up. When
using these products, install an ionizer to prevent the film from being charged with static electricity. Also, ensure that no
static electricity will be applied to the product's copper foils by taking measures to prevent static occurring in the peripheral
equipment.
Corporate Headquarters
120 Broadway
Menands, New York 12203
800.984.5337 Fax: 518.432.7454
Web Site: www.marktechopto.com
Email: info@marktechopto.com
West Coast Sales Office
100 Oceangate Blvd.
Long Beach, California 90802
800.984.5337 Fax: 562.628.5572
Web Site: www.marktechopto.com
Email l.dodge@marktechopto.com
ESD PRECA
ESD PRECAUTIONS FOR
UTIONS FOR
ST
STA
ATIC SENSITIVE DEVICES
TIC SENSITIVE DEVICES
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