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hgottlieb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hgottlieb Quote  Post ReplyReply Direct Link To This Post Topic: Courtyard
    Posted: 27 Apr 2015 at 3:09am
Hi All,
 
Why is there so big difference in courtyard when calculating Land Pattern with Library Experts vs IPC-7351 Land Pattern Calculator.
 
HGottlieb
 
There is also a difference in footprint to.
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Tom H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2015 at 4:47am
It all has to do with Library Expert Pro User Preferences.
 
The Courtyard has several options in the Pro version.
 
Also, the pad shapes has several options in the Pro version.
 
The Lite version is a direct copy of Pro without global User Preferences, Library Editor and FP Designer.
   
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hgottlieb Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2015 at 5:41am
Hi Tom,
 
I thought that Library Expert was following some rules from IPC-7351 and not personal rule set.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2015 at 6:52am
The Library Expert Lite and Pro both come with IPC-7351 rules as the default settings.
 
But the Pro version allows the user to create multiple global preference files that deviate from the default rules.
 
You can also change the rules in Lite, one part at a time after you manually enter all the package dimensions.
  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hgottlieb Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2015 at 6:58am
Thanks Tom
I am aware of these opportunities with a purchased and a free version, but you did not answer my question.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2015 at 9:25am
I believe you are referring to the old obsolete LP Wizard Calculator that Mentor Graphics owns. It was created in 2005.
 
The Library Expert is the new IPC Calculator that produces the correct footprint pattern. It is up to date with 2015 technology.
 
I hope this answers your question.
 
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hgottlieb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hgottlieb Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2015 at 10:52am
No, it is the least but it still requer more Space the you old tools.
But it is okay for me, I do know how to change it.
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