Example of Creating a Dual In-Line Package Footprint

PartQuest Portal Subscription: Essential or Professional

This example steps you through the process of using the Footprint Creator Wizard to create a custom footprint for a dual in-line package (DIP) of a PartQuest Portal part. In-line package terminals are arranged in a single row or parallel rows, and are designed for insertion mounting perpendicular to the seating plane.

Procedure

  1. Use the PartQuest Portal search to find “BQ4015YMA-85”, and then from any of the search results, click , and examine the part’s packaging information.

    For more information about the part package, search for the “MA (R-PDIP-T)” mechanical drawing at TI.com.

    Figure 1 shows package information for the R-PDIP-T package and Figure 2 shows BQ4015YMA-85 terminal names and numbers.

    Figure 1. MA R-PDIP-T Package Information



    Figure 2. BQ4015YMA-85 Terminal Names and Numbers



  2. From the Search page, start the Footprint Creator Wizard.
  3. Use the Package Outline page to specify the package outline style and dimensions using the selections and values from the table below. When you are finished, click Continue to Terminals.

    Datasheet

    Wizard Option

    Wizard Selection/Value

    -

    Package Outline



    Dimensions (mm)

    General, Unit-of-Measure (UOM)

    mm (millimeters)

    -

    General, Mounting Preparation

    Straight Mounted

    -

    General, Body Direction

    Vertical

    -

    Package Shape



    E (Min.)=18.03E (Max.)=18.80

    Dimensions, Dimension1

    • Minimum(mm)=18.03

    • Maximum(mm)=18.8

    D (Min.)=42.42D (Max.)=43.18

    Dimensions, Dimension2

    • Minimum(mm)=42.42

    • Maximum(mm)=43.18

    A1 (MIN)=0.38

    Dimensions, Vertical Dimension, Standoff

    Minimum(mm)=0.38

    A (MIN)=9.27A (MAX)=9.53

    Dimensions, Vertical Dimension, Body Height

    • Minimum(mm)=9.27

    • Maximum(mm)=9.53

    The following shows the 2D package view, which results from the package outline options.



  4. Use the Terminals page to specify the package terminal type and dimensions using the selections and values from the table below. When you are finished, click Continue to Details.
    Table 1. Terminal Group #1

    Datasheet

    Wizard Option

    Wizard Selection/Value

    -

    Terminal



    -

    Terminal Position



    -

    Additional Terminal Position Information

    Overlap, Left-to-Right



    -

    Additional Terminal Position Information, Rows/Columns

    NY=16

    -

    Additional Terminal Position Information, Terminal Function

    Electrical

    -

    Terminal Shape



    e (MIN)=14.99e (MAX=16.0

    Terminal Contact Positions, Pitch (x)

    • Minimum(mm)=14.99

    • Nominal(mm)=15.5 (assumed))

    • Maximum(mm)=16

    G (MIN)=2.29G (MAX=2.79

    Terminal Contact Positions, Pitch (y)

    • Minimum(mm)=2.29

    • Nominal(mm)=2.54 (assumed)

    • Maximum(mm)=2.79

    C (MIN)=0.20C (MAX=0.33

    Terminal Dimension (T.Dim), Dimension1

    • Minimum(mm)=0.2

    • Maximum(mm)=0.33

    b (MIN)=0.43b (MAX=0.58

    Terminal Dimension (T.Dim), Dimension2

    • Minimum(mm)=0.43

    • Maximum(mm)=0.58

    L (MIN)=3.05L (MAX)=3.81

    Terminal Insertion Height

    • Minimum(mm)=3.05

    • Nominal(mm)=3.43 (assumed)

    • Maximum(mm)=3.81

    The following shows the 2D package view, which results from the terminals options.



  5. Use the Details page to specify the package terminal numbering pattern and package body material as follows:
    1. From the 2D package preview, select the top-left terminal.
    2. Click

      , and then select Numerical from the dropdown list.

      The following shows the 2D package view, which results from the terminal numbering pattern.



    3. Choose Plastic from the Package-body Material list, and then click Continue to Validate.
  6. Use the Validate page to view the footprint for various target design densities.

    The following 2D package view shows the footprint summary generated by the Footprint Creator wizard for the BQ4015YMA-85 part package and a target design density setting of nominal material condition (nominal density).







    The Footprint Creator wizard displays the footprint summary as follows:

    Manufacturing Process Part is Compatible with:

    • Manual Placement

    • Wave Solder

    • Selective Mini Wave Solder

    • Selective Laser Solder

    • Manual Solder - Low Volume High Mix

    • Manual Solder - High Volume Low Mix(May require special attention)

    Solder Mask Clearance — 75.0 µm

    Stencil Thickness Allowable — 75 µm (3mil)

    Solder Paste Size — Solder Paste Aperture is set to 1:1 with the Pad.

Results

The DIP package footprint is complete