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Printout of ic pads in physical size

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exodia:
Hello fellow mates

I have searched the web but i haven't found a single piece of paper to print about the physical size of IC pads. The more experienced users are all familiar with the real dimensions of the Ic's but for new comers this is a pain in the butt. So have anyone found a list of real ic dimensions?

Bored@Work:
Every self-respecting datasheet contains the information for the particular IC, typically at the end of the datasheet. Also self-respecting semiconductor manufacturers publish their case types and dimensions in addition in application notes, engineering notes, manuals, or the like. These days everything is on their web sites.

exodia:
What i mean is a physical size printout of the Ic's size so i can have a reference size before i put a particular IC in PCB. Like an A4 paper with the IC pads. Take a look at the picture i include

joelby:
If you design the component layout in your EDA software to the measurements given on the datasheet and print it at 100%, it should be the correct size. Repeat for all the kinds of package you require. If you have the parts on hand, sit them on top of the printout and make sure they line up before having boards made. In practice there are so many different patterns that it's probably not worth and not possible to compile a reference that has them all. A good PCB library (such as Sparkfun's Eagle library) should have verified versions of all standard footprints, but it's quite easy to create and check them yourself with most packages.

Mechatrommer:

--- Quote from: exodia on October 18, 2010, 07:34:14 am ---What i mean is a physical size printout of the Ic's size so i can have a reference size before i put a particular IC in PCB. Like an A4 paper with the IC pads. Take a look at the picture i include

--- End quote ---
if you got the chip, then you can start measuring and draw according to your measurement. ;)

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