L9026 datasheet(51/60 Pages) STMICROELECTRONICS

51 / 60 page

Notes:

1. Dimensioning and tolerancing schemes conform to ASME Y14.5M-1994.

2. All Dimensions are in millimeters.

3. Terminal A1 identifier and terminal numbering convention shall conform to JEP95 SPP-002. Terminal A1

identifier must be located within the zone indicated on the outline drawing. Topside terminal A1 indicator may

be a molded, or metalized feature. Optional indicator on bottom surface may be a molded, marked or

metallized feature.

4. Outlines with “D” and “E” increments less than 0.5 mm should be registered as “stand alone” outlines. These

outlines should use as many of the algorithms and dimensions states in the design standard as possible to

insure predictability in manufacturing.

5. Inner edge of corner terminals may be chamfered or rounded in order to achieve minimum gap “k”. This

feature should not affect the terminal width “b”, which is measured L/2 from the edge of the package body.

6. “N” is the maximum number of terminal positions for the specified body size. Depopulation is allowed, but only

under the following conditions.

–

Depopulation scheme must be consistent in each quadrant of the package.

–

Non-symmetric variations should be broken out as separate mechanical outline variations, including

depopulation graphics.

7. A1 is defined as the distance from the seating plane to the lowest point on the package body (standoff).

8. Dimension D2 and E2 refer to exposed pad.

9. For Tolerance of Form and Position see Table 20.

10. Critical dimensions: 10.1 L1

11. Dimensions “b” and “L” are measured at terminal plating surface.

L9026

Package information

DS13397 - Rev 9

page 51/60

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