fanSINK™ Designed for Analog Devices Eval Boards Advanced Thermal Solutions fanSINK™ is a high-performance 21.0mm x 21.0mm x 13.5mm BGA heat sink with a superGRIP™ attachment. The ATS superGRIP is a proven high-reliability mechanical attachment system. The superGRIP hardware includes a high-performance plastic frame clip and 300 series stainless steel spring clip, avoiding PCB through holes.