Lisa, In response to Cancelled mil specs: You are right the times are a changing! The following explains my companys plan for PWB spec migration: Technical phase Specification Subject Current Mil Spec Replacement Performance Spec RIGID BOARD DESIGN MIL-STD-275E IPC-D-275 RIGID SMT LAND PATTERN DESIGN NONE IPC-SM-782A FLEXIBLE CIRCUIT DESIGN MIL-STD-2118 IPC-D-275 FLEX DESIGN MULTI CHIP MODULE LAMINATE DESIGN NONE IPC-D-275 MCM-L AND IPC-2301 RELIABILITY DESIGN GUIDE LINES FOR SMT PWB'S NONE IPC-D-279 ///////////////////////////////////////////////////////////////////////////////////////////////////// RIGID BOARD FAB MIL-P-55110E IPC-RB-276A AND MIL-P-RRRRR FABRICATION FLEXIBLE CIRCUIT/RIGID-FLEX FAB MIL-P-50884C IPC-6210/6310 MULTI CHIP MODULE LAMINATE FAB NONE IPC-MC-790 AND IPC-6301 //////////////////////////////////////////////////////////////////////////////////////////////////// RIGID BOARD CCA MIL-C-28809B IPC-CM-770D FLEXIBLE CIRCUIT/RIGID-FLEX CCA ASSEMBLY CCA ASSEMBLY/SOLDERING DESIGN/ACCEPTANCE MIL-STD-2000A ANSI/J-STD-001A ///////////////////////////////////////////////////////////////////////////////////////////////////// CONFORMAL COAT MATERIAL SPEC MIL-I-46058 IPC-CC-830 CONFORMAL COAT ANSI/J-STD-001A AND CONFORMAL COAT CCA SPEC MIL-STD-2000A IPC-CM-770D DIANNE L.BOEHM LORAL AERONUTRONIC 29947 AVENIDA DE LAS BANDERAS RANCHO SANTA MARGARITA,CA 92688-7004 PHONE 714 459-4490 FAX 714 459-3190 email address: [log in to unmask]