@conference{756576, author = {Michael Cresswell and William Penzes and Robert Allen and L Linholm and C Ellenwood and E Teague}, title = {Electrical Test Structure for Overlay Metrology Referenced to Absolute Length Standards}, year = {1994}, number = {2196}, month = {1994-05-01 00:05:00}, publisher = {Proceedings of SPIE, San Jose, CA, USA}, language = {en}, }