Irvine-based RFaxis, a semiconductor firm developing wireless RF products, said Wednesday that the firm's products have been selected by Taiwanese firm CeraMicro Technology Corp. The firm said that it will use RFaxis' front-end ICs as part of Zigbee and WLAN products. CeraMicro develops wireless modules for Zigbee, WLAN, and Bluetooth. RFaxis did not say what kind of volume it was expecting from the design win.