X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=m0n5t3r.info; s=m0n5t3r; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to; bh=J+A6P3bQey74uE5cKy1BkdneHYQOfOy5LlLoO3KIfN4=; b=fSF5XF3KbSka9MNRbOLWIAjHnsmcdjyiMGaTvV/Yg9qZ3L/6CG8KSgz4vhTZXrfJgR WplzcMuIfokQORffej4N+q6r9QRf4WdMWz36Rjk7kvdeNAIezGCnIa2svAA0v9DAf8Cx xDyY7LtNhaBjKnrytuPJ6DqKdjuELPI1Zrn24= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to; bh=J+A6P3bQey74uE5cKy1BkdneHYQOfOy5LlLoO3KIfN4=; b=sIYG7A35UvHD/m1Cx5ZD45DEpa655NPoRp/y5tHL2CmoT1fU/UwapusPllfVNt9CBh sUMf33zPbYN19q9BT4DeGzgtu+TsBpvdfotOKeCBqrEvksWEadtEh2lS6MCL+554Ikt1 0R1UwY/fgHNkB3U7OKn42V9e8xmQR4S3UODjM0ZM+K7cA9XtKtGAuPExnf5vrLsWNsXg 4tzK4ifwcnwS8Qyj7eN3xrNT/uNydkOML3CarOQco2JhfrVdBaGMcTmsV1XSf3+irQ5Z iJMq3kznPoeyXkjlddqXtfhdmgfx8Rw5ArnMjXLwI34vGgdDVDMf4kuqGP3/uZoIvr9Q kFkQ== X-Gm-Message-State: AFeK/H0yEifbG/vRw2XvLlvulEowU/RhvWYDMDxb8yKT8qzssBIYzD1FC3f1xB5QS9ltBQ== X-Received: by 10.223.160.17 with SMTP id k17mr32897695wrk.106.1490205443525; Wed, 22 Mar 2017 10:57:23 -0700 (PDT) Subject: Re: [geda-user] handsolder QFN packages To: geda-user AT delorie DOT com References: <20170322172551 DOT DF40C8106DD0 AT turkos DOT aspodata DOT se> From: "Sabin Iacob (iacobs AT m0n5t3r DOT info) [via geda-user AT delorie DOT com]" Message-ID: Date: Wed, 22 Mar 2017 19:57:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 MIME-Version: 1.0 In-Reply-To: <20170322172551.DF40C8106DD0@turkos.aspodata.se> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5o10kj0erAQaOG7dm1nD1NRu8PsFOv2rQ" Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --5o10kj0erAQaOG7dm1nD1NRu8PsFOv2rQ Content-Type: multipart/mixed; boundary="JIRVgr7gPkjUIUcPrA5GDg0l7sS5JOn4i"; protected-headers="v1" From: Sabin Iacob To: geda-user AT delorie DOT com Message-ID: Subject: Re: [geda-user] handsolder QFN packages References: <20170322172551 DOT DF40C8106DD0 AT turkos DOT aspodata DOT se> In-Reply-To: <20170322172551 DOT DF40C8106DD0 AT turkos DOT aspodata DOT se> --JIRVgr7gPkjUIUcPrA5GDg0l7sS5JOn4i Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I didn't need it so far, but there are many examples on youtube[1], both with and without hot air; that part seems like it should be doable without hot air if you have a stable hand, and easy with hot air; just make the pads of the footprint long enough (so they look more like QFP pads) and break a few before soldering the final thing :) [1] https://www.youtube.com/results?search_query=3Dqfn+hand+soldering On 03/22/2017 07:25 PM, karl AT aspodata DOT se wrote: > Is it possible to handsolder QFN packages, something like [1] ? > > H=C3=A4lsningar, > /Karl Hammar > > [1] http://assets.nexperia.com/documents/data-sheet/PUSB3FR4.pdf > > -----------------------------------------------------------------------= > Asp=C3=B6 Data > Lilla Asp=C3=B6 148 > S-742 94 =C3=96sthammar > Sverige > 0173 140 57 > > --JIRVgr7gPkjUIUcPrA5GDg0l7sS5JOn4i-- --5o10kj0erAQaOG7dm1nD1NRu8PsFOv2rQ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJY0rsAAAoJEIIekQf3ltoLkM4P/1C5lQta5Q8kP2lo3mK7LiTB U0xdygn/DBUk71gF5dEEiZae0rmSI7igrp7wT6sKkieEqVZywgeRog8sukZk1k+N C+sRN5lkLJVUCVvE7B5PlDxkIJTMgzkwr24esPuTFf25l+KnB1VrlJlZrCkuTltd hgw8RiZPwcS05GTSL9E5QpVxvK8Q7PxmQfeekU/C1ycL3NyddHYMgsHvxlQfmNMw JZU/CJzhniSG8txDkJRu+jYvoPvQQ/TfXzodc1JSCB6hi8D/ymrNmkrZOVhHumh7 r7akcRmyaXcKBeQHrMumml/+pm6BQNLNx0POVygFA7/yZU/asqQHUmMqbCMqUzCr 6aZ0PF8lMnzC7Hso6tL2g1lRdNVs5cCOrYctea6KX0peJA0awkA5H/KmH+/na8pT kU2jAwMZULtQ48PO6al7p4cI6mIfd1lIV7uMOJ53HHWaemt8lmL7tEHm9utYp/uA y3+q/K1e6XxfxgCC8Fd0bFeIKSZUElxYf7ZmnfixonPDEUIVfo/gTbJAEL2ZtVLl yt5Cgn14K3v39VQngtPQcpYnzAY2UyHHqwpUZSzUWK6wXhBoHk0hVKfJbfuIf9mv ozQwFcIbStBMqE3skA3MUfJwTzRvGW/OXrDjgZK1sjqmj+sNKp7O95TTv2tY5VzW wI3XfjPyLuqf+mbNF+G/ =2oT7 -----END PGP SIGNATURE----- --5o10kj0erAQaOG7dm1nD1NRu8PsFOv2rQ--