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SEMI G14-88 © SEMI 198 2, 1996 3 Figure 1 Figure 2 Figure 3 Variations from Nominal Lead Location Figure 4 Parting Lin e Protrusions and V a riation i n Lead Position Figure 5 Package Warpage an d Thickness Figure 6 Shou…
SEMI G14-88 © SEMI 1982, 1996 2
9. Applicable leadframe drawing, showing all
dimensions.
5 Dimensions
Drawing must show dimensions for the following
items, if applicable:
1. Package length
2. Package width
3. Top cavity thickness
4. Bottom cavity thickness
5. Frame thickness
6. Top ejector pin locations from notch end
7. Bottom ejector pin locations from notch end
8. Ejector size (top and bottom)
9. Ejector depth (top and bottom), draft angle top
side (bottom, side, and end)
10. End notch shape, depth, width, length
11. Pin 1 ID location from package center
12. Pin 1 ID shape and size
13. Corner radius on sides
14. Corner radius on ends
15. Lead spread (nominal) (see Figure 3)
16. Shoulder bend location
17. Shoulder width
6 Product Criteria Dimensional Tolerance
Limits for DIPS
In recognition that every manufacturing process is
subject to variation, the following list details the
acceptable limits of this variation.
8 - 64 LEAD
(unless otherwise noted)
MISMATCH (see Figure 2)
± 0.002"
PACKAGE/FRAME OFFSET (see Figure 1) (excludes
leadframe tolerances)
8-64 ± .002"
PROTRUSIONS (see Figure 4)
Parting line Side and End 0.006"(For reference use
only)
Top Protrusion 0.001"
Bottom Protrusion 0.001"
INTRUSIONS (Ejector Pins)
0.010" maximum
VARIATIONS IN LEAD POSITION (see Figure 4)
0.007" True position
non-accumulative
SHOULDER WIDTH
PROTRUSIONS/INTRUSIONS (see Figure 4)
+ 0.003"/- 0.002"
PACKAGE WARPAGE (see Figure 5)
Warp factor 2.5
SHOULDER BEND LOCATION (see Figure 6)
JEDEC Publication No. 95
outline minus lead thickness.
(Based on balanced plastic.)
LENGTH AND THICKNESS
± 0.002" (see Figure 5)
(Excluding protrusions)
7 Sampling
7.1 Samples used to determine compliance to Section
6 shall be determined between vendor and supplier.
8 Packaging
8.1 Tooling must be packaged in containers designed
and constructed to prevent damage and/or
contamination. Specific protection must be provided if
tooling is to be shipped any great distance.
SEMI G14-88 © SEMI 1982, 19963
Figure 1
Figure 2
Figure 3
Variations from Nominal Lead Location
Figure 4
Parting Line Protrusions and Variation in Lead
Position
Figure 5
Package Warpage and Thickness
Figure 6
Shoulder Bend Location and Package Width
SEMI G14-88 © SEMI 1982, 1996 4
NOTICE: These standards do not purport to address
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