{"id":2920,"date":"2014-05-09T08:42:48","date_gmt":"2014-05-09T15:42:48","guid":{"rendered":"https:\/\/blogs.mentor.com\/jimmartens\/?p=2920"},"modified":"2026-03-27T09:21:24","modified_gmt":"2026-03-27T13:21:24","slug":"how-the-free-land-pattern-creator-in-pads-will-save-you-time-part-2","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/2014\/05\/09\/how-the-free-land-pattern-creator-in-pads-will-save-you-time-part-2\/","title":{"rendered":"How the Free Land Pattern Creator in PADS will save you time! : Part 2"},"content":{"rendered":"

This is the 2nd<\/sup> of my 5-part blog series focusing on fun facts, tips and tricks that will enable you to get the most out of the PADS LP Creator<\/a>, now included with every seat of PADS VX.<\/p>\n

In Part 1<\/a> I showed you one example of how a single calculator accommodates all the different lead styles and component families within a single calculator. I also showed you a different way to create non-standard SMT components using the LP Calculator.<\/p>\n

In this blog I\u2019ll take that a step further by showing you how you can apply the exact manufacturer datasheet recommended land patterns dimensions to create a 1:1 land pattern quickly and easily in the PADS Land Pattern Creator<\/a>.<\/p>\n

Fun Fact #2<\/strong>: Did you know that we\u2019ve included several designer utilities right inside the LP Creator? Below you\u2019ll notice a Hole Size Calculator, Hole Pad Stack Calculator, Via Calculator and a unit converter right at your fingertips.<\/p>\n

\"LPC_blog_2_image1\"<\/p>\n

A great advantage of the Hole Pad Stack Calculator is that it does all the padstack calculations for you! You enter the hole\u2019s lead shape, type, diameter and fabrication level desired and the calculator does the rest. It even generates the IPC 7251 compliant padstack name for the hole in a copy\/paste field for easy use.<\/p>\n

\"LPC_blog_2_image2\"<\/a><\/p>\n

I\u2019d encourage you to explore all these great time-saving utilities included in the LP Creator!<\/p>\n

Tip\/Trick #2<\/strong>: All of the IPC 7351B calculations are built right into the LP Creator. That includes all the settings for the Most, Nominal and Least environments too. You can also create your own custom \u201cUser\u201d calculation settings utilizing you company\u2019s best practices if you should ever need to deviate away from the IPC-compliant calculations, even if for just a single calculator setting.<\/p>\n

Now I\u2019ll show you how you can apply the manufacturers\u2019 recommended land pattern dimensions supplied in datasheets to create a 1:1 land pattern quickly and easily with the PADS Land Pattern Creator. For this example I\u2019ve selected a typical capacitor footprint.<\/p>\n

I\u2019ll start by opening the tool \u201cpreferences\u201d and creating a new set of calculator settings. I\u2019ll use the name One_To_One.xml<\/strong> and save the preference file to my desire location. For the next step I\u2019ll go into each calculator that I\u2019d like to use for 1:1 land patterns and change all the calculator settings to \u201cUser\u201d instead of \u201cDefault\u201d and then change all the setting and ENV values within the calculator to 0.00<\/strong>. This will cause the entered data to stay 1:1 when \u201cOK\u201d is selected. Make sure you save and close the preferences file. NOTE: I\u2019ll retain all the global settings for rules and drafting.<\/em> See below.<\/p>\n

\"LPC_blog_2_image3\"<\/a><\/p>\n

Now I\u2019m ready to build my 1:1 land pattern. I\u2019ll launch the SMT \u201cChip\u201d calculator and select \u201cDemo\u201d. Notice that when you select the \u201cCalculator Settings\u201d tab, all of the Users settings are now 0.00. Switch back to the \u201cComponent\u201d tab and replace the demo calculator dimensions with the dimensions provided in the datasheet as seen below.<\/p>\n

\"LPC_blog_2_image4\"<\/a>Should the input format and\/or units require a min and a max, enter the supplied value for both as seen below.<\/p>\n

\"LPC_blog_2_image5\"<\/a><\/p>\n

When complete, clicking the \u201cLand Pattern\u201d tab will display the 1:1 land pattern with dimensions. You\u2019ll also want to make sure that you rename the new 1:1 land pattern as desired, like I\u2019ve done below.<\/p>\n

\"LPC_blog_2_image6\"<\/a><\/p>\n

When you\u2019re all done, run the Wizard and add any part attributes you desire and then immediately create the land pattern for use in PADS. You can also open the decal and make further custom edits to the land pattern as desired.<\/p>\n

I hope you find this series interesting. Feel free to comment or send me any tip or tricks you may have for the Land Pattern Creator.<\/p>\n

Follow me on Twitter <\/strong>@JohnMc_Mentor <\/strong><\/a>to be the first to know when I post my next blog!\u201d<\/p>\n

John<\/p>\n","protected":false},"excerpt":{"rendered":"

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