Prabhakar, I think you misunderstand this application. The chip is the only thing used; there is no board. The chip gets embedded into the product (sewn into a seam, molded into a CD, etc). To verify an article is genuine the NFC interrogation asks the chip for its ID (using encrypted communications) and then queries a secure database to verify the ID is valid. The chip's power comes from the RFID interrogation signal.