Re: Standardized footprint references

From: Ivan (ivanzr1_at_aol.com)
Date: 02/22/05 

Date: Tue, 22 Feb 2005 00:44:00 -0500

Mark-

Thank you! The urls that you provided answered many questions,
including those for reflow and wave soldering specs.

I appreciate your attention and help.

Thank you once again,

Ivan

On Mon, 21 Feb 2005 20:30:39 -0800, qrk <SpamTrap@reson.com> wrote:

>On Fri, 18 Feb 2005 23:22:19 -0500, Ivan <ivanzr1@aol.com> wrote:
>
>>Is there a document referencing standards like 1206, 0805, etc. for
>>component land dimensions?
>>
>>Also, how can I find these footprints (ie 1206) in Protel?
>>
>>Thanks one and all for everyone's help.
>>
>>
>>Ivan
>
>IPC-SM-782 is a good starting point. They have an on-line calculator
>which is unpleasant to use.
>
>Check manufacturers data sheets and application notes.
>
>AVX has done extensive research on chip capacitors and land patterns.
>Look for their "Surface Mounting Guide" for MLC chip capacitors. I
>like using their reflow dimensions.
>http://www.avxcorp.com/prodinfo_productdetail.asp?I=971&ParentID=124
>http://www.avxcorp.com/techinfo_doclisting.asp?Category=Surface+Mount+Capacitors
>http://www.avxcorp.com/techinfo_doclisting.asp?PageNumber=1&Pageset=1&Category=Ceramic+Capacitors&SubCat1=&SubCat2=&qry=Select+%2A+from+tblTechInfo+Where+tecCategory%3D%27Ceramic+Capacitors%27+ORDER+BY+tecTopic
>
>PCB Standards has a landpattern calculator. It designs to IPC-782
>standards. Check out pcbstandards forums > PCBstandards > Free
>Resources > Library Part Documentation for some good info.
>http://www.pcbstandards.com/
>
>Mark