A compression mount receptacles (16) is provided for mounting test and burn-in sockets (14) to surface mount pads of circuit boards (18). The receptacle (16) includes coil spring contacts (52) having active portions provided by loosely wound coils (54) which provide compliance for accommodating tolerances...http://www.google.se/patents/US6746252?utm_source=gb-gplus-sharePatent US6746252 - High frequency compression mount receptacle with lineal contact members