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SEMI G51-90 © SEMI 1990 5 Table 1 Leadfr ame Standard Dimension s L E A D C O U N T 4 4 5 25 26 48 0 6 4 8 0 PACKAGE SHAPE SQUARE SQUARE SQUARE SQUARE SQUARE RECT RECT. NOMIN AL PACKAG E WIDTH (m m) 10. 0 10. 0 14.0 14.0…

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SEMI G51-90 © SEMI 1990 4
Figure 6
Frame Unit
1. Corner relief holes are optional features only. Gating may require their exclusion.
2. Lead counts 100 and below have only 1 support tab per each frame expansion slot. Lead counts 120 and above
have 3 support tabs evenly spaced for each frame expansion slot. Tabs are to be placed opposite the space.
SEMI G51-90 © SEMI 19905
Table 1 Leadframe Standard Dimensions
LEAD COUNT 44525264806480
PACKAGE SHAPE SQUARE SQUARE SQUARE SQUARE SQUARE RECT RECT.
NOMINAL PACKAGE WIDTH (mm) 10.0 10.0 14.0 14.0 14.0 14.0 14.0
NOMINAL PACKAGE LENGTH (mm) 10.0 10.0 14.0 14.0 14.0 20.0 20.0
STRIP LENGTH (mm) 171.2 171.2 158.52 158.52 158.52 158.52 158.5
NO. OF UNITS PER STRIP 8866666
TOOLING DIM A (mm) 7.5 7.5 9.45 9.45 9.45 9.45 9.45
(PROGRESS) C (mm) 21.4 21.4 26.42 26.42 26.42 26.42 26.42
F (mm) 1.5 1.5 1.7 1.7 1.7 1.7 1.7
G (mm) 23.2 23.2 26.0 26.0 26.0 33.1 33.1
(STRIP WIDTH) H (mm) 24.7 24.7 27.7 27.7 27.7 34.8 34.8
I (mm) 20.0 20.0 22.82 22.82 22.82 28.8 28.8
J (mm) 20.0 20.0 22.82 22.82 22.82 22.82 22.82
K (mm) 5.18 5.18 7.18 7.18 7.18 7.18 7.18
L (mm) 5.18 5.18 7.18 7.18 7.18 10.18 10.18
DAMBAR WIDTH (mm) 0.4 0.4 0.4 0.4 0.4 0.4 0.4
EXP. SLOT WIDTH (mm)
1) BETWEEN FRAMES 1)0.3 1)0.3 1)0.6 1)0.6 1)0.6 1)0.6 1)0.6
2) END OF SHT BAR 2)0.15 2)0.15 2)0.38 2)0.38 2)0.38 2)0.38 2)0.38
METAL THICKNESS (mm) 0.15 0.15 0.15 0.15 0.15 0.15 0.15
EXTERNAL LEAD Pitch (mm) 0.8 0.65 1.0 0.8 0.65 1.0 0.8
LEADCOUNT 100 120 128 144 160 184 196 232
PACKAGE SHAPE RECT. SQUARE SQUARE SQUARE SQUARE SQUARE RECT. SQUARE
NOMINAL PACKAGE WIDTH (mm) 14.0 28.0 28.0 28.0 28.0 32.0 28.0 40.0
NOMINAL PACKAGE LENGTH (mm) 20.0 28.0 28.8 28.0 28.0 32.0 40.0 40.0
STRIP LENGTH (mm) 158.52 200.0 200.0 200.0 200.0 200.0 200.0 248.0
NO. OF UNITS PER STRIP 6 4 4 4 4 4 4 4
TOOLING DIM A (mm) 9.45 18.8 18.8 18.8 18.8 18.8 18.8 18.8
(PROGRESS) C (mm) 26.42 50.0 50.0 50.0 50.0 50.0 50.0 62.0
F (mm) 1.7 3.5 3.5 3.5 3.5 3.5 3.5 3.5
G (mm) 33.1 57.9 57.9 57.9 57.9 57.9 57.9 57.9
(STRIP WIDTH) (mm)H 34.8 61.4 61.4 61.4 61.4 61.4 61.4 61.4
I (mm) 28.8 37.2 37.2 37.2 37.2 37.6 49. 8 49.2
J (mm) 22.82 37.2 37.2 37.2 37.2 37.6 37.8 49.2
K (mm) 7.18 14.18 14.18 14.18 14.18 16.18 14.18 20.18
L (mm) 10.18 14.18 14.18 14.18 14.18 16.18 20.18 20.18
DAMBAR WIDTH (mm) 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
EXP. SLOT WIDTH (mm)
1) BETWEEN FRAMES 1)0.6 1)3.6 1)3.6 1)3.6 1)3.6 1)3.6 1)0.4 1)3.6
2) END OF SHT BAR 2)0.38 2)2.0 2)2.0 2)2.0 2)2.0 2)2.0 2)0.4 2)2.0
METAL THICKNESS (mm) 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15
EXTERNAL LEAD PITCH (mm) 0.65 0.8 0.8 0.65 0.65 0.65 0.65 0.65
SEMI G51-90 © SEMI 1990 6
Detail A
Corner Relief Hole (Optional)
Table 2 Leadframe Standard Dimensions
LEADS PKG. BODY a b c d
44 10 × 10 4.200 3.800 1.170 1.170
52 10 × 10 4.200 3.800 1.170 1.170
52 14 × 14 3.735 3.00 0.995 1.075
64 14 × 14 3.735 3.00 0.995 1.075
80 14 × 14 3.735 3.00 0.995 1.075
64 14 × 40 3.735 3.400 0.995 1.075
80 14 × 20 3.735 3.400 0.995 1.075
100 14 × 20 3.735 3.400 0.995 1.075
120 28 × 28 6.600 8.840 1.610 1.610
128 28 × 28 6.600 8.840 1.610 1.610
144 28 × 28 6.600 8.840 1.610 1.610
160 28 × 28 6.600 8.840 1.610 1.610
184 32 × 32 6.600 8.840 1.610 1.610
196 28 × 40 6.600 8.840 1.610 1.610
232 40 × 40 6.600 8.840 1.610 1.610
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