Use my QFP generator, just enter the dimensions provided in Altera's Device Package
Catalog.

Sites:
Altera package specs ->  http://www.altera.com/literature/ds/dspkg.pdf


Just copy this link location into your internet explorer address bar:
ftp://ftp.point-lab.com/quartus/Public/ProtelUsers/
Take these 2 files:

QFPfootprintGeneratorScript.bas     - Protel ClientBasic script.
QFPfootprintGeneratorScript.txt       - added documentation.

enter:  " 36, 22, 0, 36, 22, 0.5, 0.27, 0.75, 1, 2, 0.04, 0 " for Altera's 144 pin
TQFP

If you want a thinner footprint, minimal pad meat, change:
0.27 -> 0.22
0.75 -> 0.60

Goodluck.
____________
Brian Guralnick


----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Protel EDA Forum" <[EMAIL PROTECTED]>
Sent: Wednesday, September 05, 2001 4:21 PM
Subject: [PEDA] Altera 144Pin TQFP Landing Pattern


| Hi,
|
| I need a landing pattern for Altera  p/n EP1K30TC144-2.  The package is a 144
| Pin TQFP package.
|
| I typically use the recommended landing pattern from the manufacturer;
| however, Altera only provides the physical dimensions of the part itself.  I
| attempted to use the land pattern calculator, on the IPC website, using these
| dimensions, but the pad size was clearly calculated incorrectly (one
| dimension of the pad was the width of the entire part).
|
| At this point, I think I'll return to the IPC website to isolate my problem.
| I'd appreciate learning how others handle this situation.
|
| Thanks,
| Steve Allen
|
|
|
|

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