Background and Challenge

A chip assembly and testing factory once faced a persistent hidden problem : large fluctuations in product yield , and multiple customer complaints attributed to “ component failure caused by electrostatic damage ” . An internal investigation revealed that the root cause was the superficial control of static electricity before personnel entered the workshop .

Defects of the traditional approach :

• Only a sticker at the entrance saying “ please touch the static discharge ball ” , with no mandatory testing mechanism . Employees often ignored it or just went through the motions when in a hurry .

• No data records , so the quality department could not trace which employees had entered without passing the test on the days corresponding to specific complaints .

• High labor cost for manual supervision , especially during night shifts or shift changes . Employees with excessive static electricity would directly enter the cleanroom , causing hidden damage .

On average , this factory suffered over 80 , 000 RMB per month in product scrap and customer claims due to static problems , and customer trust was severely impacted .

Kemaisi Solution

We deployed the Kemaisi intelligent anti static wing barrier for the customer , installed at the single entrance to the workshop and linked to the attendance system .

Key improvements :

Mandatory testing + physical blocking
Employees must stand on the electrostatic test pad next to the turnstile and touch the test electrodes with both hands . Only when the static value is acceptable does the turnstile open . Those who fail cannot enter , eliminating non compliant personnel at the source .

Voice prompt for failure + on‑spot discharge
When the test fails , the turnstile gives a voice prompt : “ Static excessive – please use the static discharge ball ” . The employee presses the static discharge ball ( placed next to the turnstile ) for 3 to 5 seconds and then retests . If the result is acceptable , passage is granted – forming a closed loop .

Fully traceable data
The system automatically records for each passage : employee ID , time , static test value , pass or fail result , and whether the discharge ball was used . The quality department can export reports at any time for customer complaint tracking and internal audits .

Value Delivered to the Customer

• Yield improvement : Within six months of deployment , complaints about component damage caused by static electricity dropped by 92 % , and the product first‑pass yield increased by 5.3 % .

• Traceable complaints : In two overseas customer complaints , the factory retrieved turnstile history records to prove that all relevant employees had passed the static test on the days in question . This successfully clarified responsibility and avoided unjustified claims .

• Reduced management costs : No need to assign dedicated personnel to supervise static testing . The mandatory test is 100 % enforced even in unattended night shift mode .

• Enhanced customer trust : The factory now presents the Kemaisi anti static wing barrier as part of its quality control measures during customer audits . This has led to long‑term orders from two international semiconductor companies .

The Kemaisi anti static wing barrier is not just a gate ; it is a quality defense line .