Electrostatic discharge +This is the tray optimized for the prevention of infection by alien substances(dust and etc.), and SUNGGOK's ESD tray is categorized into the following three according to the surface resistivity (Ω) in accordance with the US Military Standard.
1010 ≤ Rs ≤ 1011 Ω/Sq
Attenuate immediately after charging with electricity
Anti-static
106 ≤ Rs ≤ 109 Ω/Sq
Barely charge with electricity
Anti-static / Prevent power storage
Rs ≤ 10z5 Ω/Sq
No charge with electricity at all
Electromagnetic shield
Spray surfactant on the sheet or the tray and dry it
1010 ~ 1011
○ Low cost
○ Simple process
○ ESD effect is inadequate
○ Migration generated
○ Durablity ↓
○ Low recyclability
Add the blended electrical conductive carbon compound to the raw material, produce sheet and mold it using tray
103 ~ 109
○ Low cost
○ Successful ESD effect
○ ESD durability ↑
○ Black dust generated
○ Limit in embodying colors
Blend BlendIDP(Conducting polymer) and add it to the raw material, produce sheet and mold it using tray
105 ~ 109
○ Equal ESD effect
○ ESD durablity ↑
○ The highest cost
○ Dust can be generated
Coat the surface of the raw material sheet with transparent IDP(conductive high polymer) using the roll coating method
105 ~ 109
○ No migration
○ No dust
○ Relatively high cost
○ ESD durabiliy ↓
(Mobile, tablet, etc.)
(PCB, CONNECTOR etc.)