X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X_CMAE_Category: , , X-CNFS-Analysis: v=2.3 cv=QNIWuTDL c=1 sm=1 tr=0 a=OAvc3ylXTZnwW13UMKQG5A==:117 a=OAvc3ylXTZnwW13UMKQG5A==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=KGjhK52YXX0A:10 a=IkcTkHD0fZMA:10 a=jlQd9YhnVdoA:10 a=Jdjhy38mL1oA:10 a=JbhlE8a8jZIA:10 a=pGLkceISAAAA:8 a=Mj1Xp5F7AAAA:8 a=BGn9bn1rAAAA:8 a=CojTb-zbc3UxA25zcgcA:9 a=QEXdDO2ut3YA:10 a=OCttjWrK5_uSHO_3Hkg-:22 a=bjWQBSCV0hpNPQM4DZhn:22 a=pHzHmUro8NiASowvMSCR:22 a=nt3jZW36AmriUCFCBwmW:22 X-CM-Score: 0 X-Scanned-by: Cloudmark Authority Engine X-Authed-Username: dG9tZGVhbkB3YXZlY2FibGUuY29t X_CMAE_Category: , , X-CNFS-Analysis: X-CM-Score: X-Scanned-by: Cloudmark Authority Engine Authentication-Results: smtp01.emerald.cmh.synacor.com smtp.mail=tomdean AT wavecable DOT com; spf=permerror; sender-id=permerror Authentication-Results: smtp01.emerald.cmh.synacor.com header.from=tomdean AT wavecable DOT com; sender-id=permerror Authentication-Results: smtp01.emerald.cmh.synacor.com smtp.user=tomdean; auth=pass (LOGIN) Subject: Re: [geda-user] Home soldering LGA-12 suggestions To: geda-user AT delorie DOT com References: <20200102201054 DOT f43d1cba4af49e5830a8d4dd AT gmail DOT com> From: "Thomas D. Dean (tomdean AT wavecable DOT com) [via geda-user AT delorie DOT com]" Message-ID: Date: Thu, 2 Jan 2020 13:44:18 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200102201054.f43d1cba4af49e5830a8d4dd@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit 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 On 1/2/20 11:10 AM, N (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] wrote: > You use solder flux? > >> I'm using a 2-axis gyro chip in a design and the largest package pith I can >> find is 0.5mm pitch. >> >> I have a solder paste dispenser along with a hot air setup. The problem >> I'm having is that the solder dispenser puts out too much paste on the >> shortest time pulse setting. My footprint has extended pads in the hope of >> solder prepping the pads, place the chip then going around the outer pads >> to reflow the solder (with the smallest soldering iron tip) but it is so >> small and the chip is just not sticking. >> >> Any suggestions? > http://www.seattlerobotics.org/presentations/2012-02-18-SMTsoldering.pdf Tom Dean