【正文】 5. “ *” 14. * 6. “ *” 15. * 7. “ *” 16. * 8. “ *” 17. * 9. “ *” 18. Design for Manufacture P 7 ARRAY DEPANELIZATION OPTIONS A) ROUTED SLOTS WITH BREAKAWAY TABS 1. Typical slot sizes are .125 ,.093,.078,.059” (,) 2. Use Diagram A for a straight, clean edge after breakaway CENTER HOLES DRILLED AT .022 OUTSIDE HOLES DRILLED AT .042 SLOT WIDTH .093 Design for Manufacture P 8 ARRAY DEPANELIZATION OPTIONS B) PARTS ARE SCORED 1. Parts are spaced backtoback. This allows for better part to panel utilization . .020 TYP .012 .062 30176。 Design for Manufacture P 9 MATERIAL COST AFFECTS BOARD COST MATERIAL COST IS A SIGNIFICANT COST OF THE PWB. (APPROXIMATELY 3040%) PLATO UTILIZES THE FOLLOWING LAYUPS WHICH ARE COST EFFECTIVE AND DIMENSIONALLY STABLE. (BASED ON .062THICKNESS AND 1 OZ COPPER.) 4 LAYER FOIL .5 OZ. FOIL .5 OZ. 1/1 Tol. +/ .002 +/ .003 +/ .002 L1 L2 L3 L4 Design for Manufacture P 10 6 LAYER FOIL .5 OZ. FOIL .5 OZ. 1/1 Tol. +/ .0015 +/ .002 +/ .002 L1 L2 L3 L4 1/1 L5 L6 +/ .002 +/ .0015 FOIL .5 OZ. FOIL .5 OZ. Tol. +/ .0015 +/ .0015 +/ .0015 L1 L2 L3 L4 L5 L6 +/ .0015 +/ .0015 L7 L8 +/ .0015 +/ .0015 8 LAYER Design for Manufacture P 11 10 LAYER FOIL .5 OZ. FOIL .5 OZ. 1/1 Tol. +/ .0015 +/ .0015 +/ .0015 L1 L2 L3 L4 1/1 L5 L6 +/ .0015 +/ .0015 1/1 L7 L8 +/ .0015 +/ .0015 1/1 L9 L10 +/ .0015 +/ .0015 THE CALL OUT OF SPECIFIC DIELECTRIC QUIREMENTS OR THE USE OF 2 OZ. COPPER CAN INCREASE THE COST OF THE PART UP TO 20%. Design for Manufacture P 12 BOARD THICKNESS How thin can we go? 4 Layer 1. Finished Thickness= .0196+/ Standard material with 1 OZ. copper 2. Finished Thickness= .0182+/ ” .5 oz. copper and 2 ply prepreg ” 1/1, FR4 COPPER FOIL 1 OZ COPPER FOIL 1 OZ PREPREG 2116HR PREPREG 2116HR “ 1/1, FR4 COPPER FOIL OZ PREPREG 1080 COPPER FOIL OZ PREPREG 1080 PREPREG 1080 PREPREG 1080 Design for Manufacture P 13 3. Absolute Thinnest= .0118+/ .003 Using 1 ply prepreg 1. Finished Thickness= .0314+/ ” Standard material with 1 OZ. copper 6 Layer BOARD THICKNESS How thin can we go? 4 Layer “ , FR4 COPPER FOIL OZ COPPER FOIL OZ PREPREG 1080 PREPREG 1080 “ 1/1, FR4 COPPER FOIL 1 OZ PREPREG 1080 COPPER FOIL 1 OZ PREPREG 1080 PREPREG 1080 PREPREG 1080 “ 1/1, FR4 PREPREG 1080 PREPREG 1080 Design for Manufacture P 14 2. Finished Thickness= .0225+/ ” .5 oz. copper and 1 ply prepreg 3. Absolute Thinnest= .0197+/ .003” Limited Panel Size Using 1 ply prepreg Cost Impact BOARD THICKNESS How thin can we go? 6 Layer “ , FR4 COPPER FOIL OZ PREPREG 1080 COPPER FOIL OZ PREPREG 1080 “ , FR4 PREPREG 1080 “ 1/1 , FR4 COPPER FOIL OZ PREPREG 1080 COPPER FOIL OZ PREPREG 1080 “ 1/1 , FR4 PREPREG 1080 Design for Manufacture P 15 BOARD THICKNESS How thin can we go? 8 Layer 1. Finished Thickness= .0432+/ ” Standard material with 1 OZ. copper “ 1/1, FR4 COPPER FOIL 1 OZ PREPREG 1080 COPPER FOIL 1 OZ PREPREG 1080 PREPREG 1080 PREPREG 1080 “ 1/1, FR4 PREPREG 1080 PREPREG 1080 “ 1/1, FR4 PREPREG 1080 PREPREG 1080 Design for Manufacture P 16 8 Layer 2. Finished Thickness= .0418+/ .5 oz. copper and 2 ply prepreg BOARD THICKNESS How thin can we go? “ 1/1, FR4 COPPER FOIL OZ PREPREG 1080 COPPER FOIL OZ PREPREG 1080 PREPREG 1080 PREPREG 1080 “ 1/1, FR4 PREPREG 1080 PREPREG 1080 “ 1/1, FR4 PREPREG 1080 PREPREG 108