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Big hands working with tiny chips? — Parallax Forums

Big hands working with tiny chips?

ArchiverArchiver Posts: 46,084
edited 2004-03-05 15:29 in General Discussion
My experience has been limited to working with chips the size of DIPs
or so. But some of these tiny packages I can't seem to work with. Example:

http://www.maxim-ic.com/cgi-bin/packages?pkg=24%2FQSOP&Type=Max

Does anyone sell adaptors that'll fit a chip like this and convert it
over to a DIP package, or is there a better way? I do not get along
with small ICs.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-03-05 15:10
    --- In basicstamps@yahoogroups.com, "zaxxon74120" <jedwards@j...>
    wrote:
    > My experience has been limited to working with chips the size of
    DIPs
    > or so. But some of these tiny packages I can't seem to work with.
    Example:
    >
    > http://www.maxim-ic.com/cgi-bin/packages?pkg=24%2FQSOP&Type=Max
    >
    > Does anyone sell adaptors that'll fit a chip like this and convert
    it
    > over to a DIP package, or is there a better way? I do not get along
    > with small ICs.

    Hi,

    I've been making SOIC to DIP adapters for others and there is a limit
    to how small you need/want to go.

    A SOIC has pins spaced by 50 mil and a there are 25mil spacing chips
    as well. The 25mil are best left to experianced solderers as the
    soldering can be extreely hard to get correct.

    There are a few places to buy baords like Digi-key, search for
    surfboards and look thru the catalogue pages as there are dip
    versions by other names.

    I have been making just the PC board, single sided, for $5.00 and
    using Glitchbuster's (http://www.glitchbuster.com/) shipping
    charge of $1.85 flat rate.

    I can shoehorn an 8 pin chip onto a 300 DIP, but the rest are 600 DIP.

    Since I have been making these one at a time, The cost is a little
    steep. If there was much interest (e-mail me direct please) I could
    get the cost lower.

    Dave

    ps: see Randy, the http makes it clickable for the masses who read
    the web page.
  • ArchiverArchiver Posts: 46,084
    edited 2004-03-05 15:29
    I should have mentioned that I can provide just the board, or the
    chip mounted on the board.

    The SSOP is the 25 mil spacing and you can see an ugly picture of one
    in the photos section in the folder.

    Adapters SMT to DIP

    I hate to sound like a plug for products or services, I have been
    doing this for friends and not as a business, but if there is
    interest in the whole idea, I would be happy to write up more
    information.


    Dave


    ps: keep the list commercial free, technical and engineering
    questions on list other stuff should be direct.
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