Electronic Device Industry
ESD Damage During IC Chip Pickup
After dicing, IC chips are picked up with a picking machine. The charging potential increases greatly during the pickup due to the electrostatic charge generated when the IC chips are removed from the dicing tape. This leads to electrostatic discharge (ESD) in the surrounding jigs and other chips, resulting in damage.
Dicing: the process in which IC chips are cut out from a wafer.
Pickup: lifting chips with a vacuum pickup tool after dicing.
Conventional countermeasures
Conventional static eliminator
- The capability is insufficient to eliminate sudden and high electrostatic charge during pickup. The effect decreases significantly in a short period.
Countermeasures with static eliminators (ionizers)
电离器可以可靠地防止产生有缺陷的产品并降低处置成本。
Improvements and Effects
Words from the worksite
Reduced disposal cost of defective products
Disposal cost due to ESD damage: $1,000/month x 12 months = $12,000/year
In addition, the labor for the maintenance of static eliminators can also be reduced.