PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2530&OB=DESC.html
. The last part on the PCB is the land pattern they recommend. Not every mfr. does this, but how do you know which one did. Since IPC never created any test boards to validate the 7351 guideline for solder joint goals there is no conclusive evidence that the solder joint goals in the guideline are optimized for the best assembly attachment
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/extended-footprint-names_topic1928_post7863.html
: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5011 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 18 Jul 2016 at 2:36pm The Extended Names were adopted by IPC Land Pattern committee, but they also wanted to relocate the Pin Qty to the beginning of the land pattern name
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/extended-footprint-names_topic1928.html
: 5010 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 18 Jul 2016 at 1:19pm In Preferences you can choose to use either the IPC-7351B or C Land Pattern Naming Convention
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/extended-footprint-names_topic1928_post7864.html
: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5195 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 18 Jul 2016 at 2:36pm The Extended Names were adopted by IPC Land Pattern committee, but they also wanted to relocate the Pin Qty to the beginning of the land pattern name
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic1928&OB=ASC.html
: 5376 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 18 Jul 2016 at 1:19pm In Preferences you can choose to use either the IPC-7351B or C Land Pattern Naming Convention
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/smd-crystal-naming-convention_topic2080_post8619.html
". D D2 L The Land Pattern Name reflects which 2 of these 3 options you selected. Note: if you enter all 3 dimensions, the resulting land pattern may be too large due to the tolerances of all 3 values
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/smd-crystal-naming-convention_topic2080.html
". D D2 L The Land Pattern Name reflects which 2 of these 3 options you selected. Note: if you enter all 3 dimensions, the resulting land pattern may be too large due to the tolerances of all 3 values
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/smd-crystal-naming-convention_topic2080_post8570.html
: 4995 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Feb 2017 at 8:07am We did mention to the IPC land pattern committee, but they are trying to introduce a brand new JEDEC naming convention for the next release. PCB Libraries, Inc
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/topic2080&OB=DESC.html
: 5188 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Feb 2017 at 8:07am We did mention to the IPC land pattern committee, but they are trying to introduce a brand new JEDEC naming convention for the next release. PCB Libraries, Inc
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/smd-crystal-naming-convention_topic2080.html
". D D2 L The Land Pattern Name reflects which 2 of these 3 options you selected. Note: if you enter all 3 dimensions, the resulting land pattern may be too large due to the tolerances of all 3 values
