<B>Technology Description</B>

An innovative UHF RFID based Shop Floor Control System (SFCS) integrated with Surface Mount Technology (SMT) has been developed by the Industrial Technology Research Institute to implement EPC G2 UHF passive tags on printed circuit board (PCB) embedded in many 3C products or home appliance. This new approach can greatly enhance the reliability of RFID tags on PCB while lowering the unit cost of each tag applied on PCB.

The SFCS also adopts RFID based process control technology to manage RFID events; the technology can be applied in many flexible manufacturing and logistics control systems.   

<B>Technology Specification</B>

• RFID Tag memory capacity: 96bits EPC and up to 512bits USER Memory
• Read accuracy: >95%
• Operating temperatures: > 160 ¢XC
• Read range: > 70 cm
• Cost per tag: < NT$ 5
• Mass customization) Assembly accuracy: > 99%

<B>Technology Competition</B>

UHF RFID based SFCS can facilitate automatic read/write operation on tagged work pieces and process control, replacing conventional barcode system that often require line-of-sight scan and human intervention in barcode tagging and data capturing. This offline readability/write-ability can be leveraged for greater manufacturing flexibility and efficiency without worrying about network speed or even connection reliability.

(Relevant patents: ROC I251161; US 7443282B2)

The technology of implementing RFID component on PCB can be easily integrated with current SMT process. (Patent prepared to file)

Optimized design for RFID tag placement and RFID reader antenna deployment can overcome interference in real-world UHF RFID environments.

RFID tags embedded in PCB have longer durability than inlay tags and barcode labels.

It is the first in the industry to implement the specified tag writing in multiple tags environment for passive UHF RFID tags, making it possible to manage the bill of material information of a product with multiple tagged components.

The novel intelligent RFID Event Processing Engine can manage a Read-Do-Check-Write session control cycle and session rollback mechanism of a RFID event, ensuring the data integrity of production pedigree for each processing stage and greatly enhance the accuracy of work piece assembly.  

(Relevant patents: ROC I251161; US Patent in defense process)