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Subject:
DES:FAB:ASSY:correction PWB SPEC MIGRATION
From:
[log in to unmask] (Cadence User Account)
Date:
Thu, 15 Aug 96 16:51:26 PDT
Content-Type:
text/plain
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text/plain (118 lines) 
iOPPS!!

Ralph Hersey was kind enough to point out an error in
my posting yesterday of the Printed Wiring Spec Migration,
I have corrected in 'Fabrication" column:

            MIL-P-5522O to  be MIL-P-55110
                                                                D.HASTINGS
                                                                   8-15-96

                 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-55110E        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        
-------------------------------------------------------------------------

                PRINTED WIRING SPECIFICATION MIGRATION
                          (PART 2 OF 2)
-------------------------------------------------------------------------
                                                          WORKING DRAFT
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-551100E        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   

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