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Altera_Forum's avatar
Altera_Forum
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15 years ago

PQFP240 Land Pattern

Hello all. I am working on a package for board layout for a Cyclone III using the PQFP40 package. I need to know what the recommended land pattern for this package is... not having any luck finding...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

At the time you could get a free footprint calculator from PCB Matrix. But They have been subsequently acquired by Valor and then Mentor, so you can no longer download the free version. But you can buy the IPC 735IB specification for US $ 112,- (https://portal.ipc.org/purchase/productdetail.aspx?product_code=987caa7f-ff93-df11-9e60-002219545fd5 (https://portal.ipc.org/purchase/productdetail.aspx?product_code=987caa7f-ff93-df11-9e60-002219545fd5)) and you get that same LP Calculator thrown in.