Fellow Tech Net Users: Hope this helps - seems to be a hot topic this week! The following represents a matrix put together by Doug Hastings documenting the Mil Spec migration for Printed Wiring Boards as of this date. Doug Hastings, Technical Consultant here at Lockheed Martin Aerospace, Rancho Santa Margarita, CA is an IPC representative for our comapany, Chairman of the Perry Directive Action Comittee also here at LMA, as well as a member of the 782 land pattern committee. 8-14-96 PRINTED WIRING SPECIFICATION MIGRATION (PART 1 OF 2) ------------------------------------------------------------------------- CURRENT TECHNICAL PHASE SUBJECT CURRENT MIL-SPEC REPLACEMENT PERFORMANCE SPECIFICATION -------------------------------------------------------------------------- DESIGN RIGID PWB MIL-STD-275E ANSI/IPC-D-275 DESIGN SMT LAND PATTERN NONE IPC-SM782A DESIGN FLEX CIRCUIT MIL-STD-2118 NONE DESIGN RIGID-FLEX CIRCUIT MIL-STD-2118 NONE DESIGN MULTI CHIP MODULE NONE IPC-MC-790 LAMINATE DESIGN RELIABILITY DESIGN GUIDELINES FOR SMT NONE IPC-D-279 PWB'S DESIGN PERMANENT SOLDER MASK NONE IPC-SM-840C --------------------------------------------------------------------------- FABRICATION RIGID PWB MIL-P-55220E ANSI/IPC-RB-276 FABRICATION FLEX CIRCUIT, RIGID-FLEX CIRCUIT MIL-P-50884C ANSI/IPC-RF-245 FABRICATION MULTI CHIP MODULE NONE IPC-MC-790 --------------------------------------------------------------------------- ASSEMBLY RIGID BOARD CCA MIL-C-28809B IPC-CM-770D FLEX CIRCUIT/RIGID-FLEX ASSEMBLY CCA ASSY/SOLDERING DESIGN/ACCEPTANCE MIL-STD-2000A ANSI/J-STD-001A --------------------------------------------------------------------------- CONFORMAL CONFORMAL COAT MIL-I-46058 IPC-CC-830 COAT MAT'L SPEC CONFORMAL CONFORMAL COAT MIL-STD-2000A ANSI/J-STD-001A COAT CCA SPEC 8-14-96 PRINTED WIRING SPECIFICATION MIGRATION (PART 2 OF 2) ------------------------------------------------------------------------- WORKING DRA TECHNICAL PHASE SUBJECT CURRENT MIL-SPEC REPLACEMENT PERFORMANCE SPECIFICATION -------------------------------------------------------------------------- DESIGN RIGID PWB MIL-STD-275E IPC-2221 & IPC-2222 DESIGN SMT LAND PATTERN NONE IPC-SM782A DESIGN FLEX CIRCUIT MIL-STD-2118 IPC-2221 & IPC-2223 DESIGN RIGID-FLEX CIRCUIT MIL-STD-2118 IPC-2221 & IPC-2223 DESIGN MULTI CHIP MODULE NONE IPC-2221 & IPC-2225 LAMINATE DESIGN RELIABILITY DESIGN GUIDELINES FOR SMT NONE IPC-D-279 PWB'S DESIGN PERMANENT SOLDER MASK NONE IPC-SM-840C --------------------------------------------------------------------------- FABRICATION RIGID PWB MIL-P-55220E IPC-6011 & IPC-6012 FABRICATION FLEX CIRCUIT/ RIGID-FLEX CIRCUIT MIL-P-50884C IPC-6011 & IPC-6013 FABRICATION MULTI CHIP MODULE NONE IPC-6011 & IPC-6015 --------------------------------------------------------------------------- ASSEMBLY RIGID BOARD CCA MIL-C-28809B IPC-CM-770D FLEX CIRCUIT/RIGID-FLEX ASSEMBLY CCA ASSY/SOLDERING DESIGN/ACCEPTANCE MIL-STD-2000A ANSI/J-STD-001A --------------------------------------------------------------------------- CONFORMAL CONFORMAL COAT MIL-I-46058 IPC-CC-830 COAT MAT'L SPEC CONFORMAL CONFORMAL COAT MIL-STD-2000A ANSI/J-STD-001A COAT CCA SPEC DIANNE BOEHM LOCKHEED MARTIN AERONUTRONIC RANCHO SANTA MARGARITA, CA (714) 459-4490 EMAIL: [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************