Welcome to Cologne Chip The smart semiconductor company GateMateTM FPGA Get an overview of Cologne Chip's new technology with this information sheet. Go to GateMate FPGA Brief. One IC family fits it all ISDN Controller ICs of XHFC Series are available with 1 up to 4 ISDN interfaces for all BRI applications. Find out, which IC is the right one for you. Cologne Chip is official sponsor of Invent a Chip 2020, a German contest searching for young talents in IC design.