![]() If you're doing a hundred, it's almost certainly worth it to send the boards out to an assembler once you know the design is good. ![]() I'm not sure that doing more than a handful is a good use of your time. Stencils are nicer than doing it by hand. You can get cheap stencils from OSH stencils ( ). Get a toothbrush and container of >90% IPA to clean them after soldering. That'll get hot enough to melt bismuth solder, and it'll warm up other solders enough that you won't need to hit so hard with the heat gun. Please retain original bill of sale, and solder paste in original container as we may request its return for internal R&D testing purposes. If the board is single sided, I recommend a hot plate, like this one: have any issues with our solder paste, please contact Chip Quik® directly for no charge warranty replacement. You can get solder paste with various particle sizes. I also like bismuth solder, but it is more brittle than other formulations. It has a matte finish, and is non-eutectic, so a lot of people do not like working with it. 'Pb-Free' solder paste reflow: Nominal peak temperature is 250☌ ☑0☌ with time above the 217☌ to 221☌ melting point of 60s ☑5s, which should be verified at machine setup by inline thermocouple measurements oven profiling. SAC 305 is the most common lead free paste. Typical temperature Profile for Eutectic Sn-Pb Solder paste. RF, PLC, CAD, HW Startups, Robotics, Microcomputing, DIY Audio, DIY Gear, DIY, Mindstorms, ASM, EE Books, Product Design, LabVIEW, Breadboard, RTLSDR, Manufacturing, Electronic Circuits. AskElectronics, Electronics, ECE, RPi, NiceChips, DevKit, Arduino, micro:bit, Nucleo, STM32F4, MSP430, PSoC, ARM, Amp Hour, FPGA, DSP,.How to solder: SMD Resistors, SMD ICs, SMD QFP IC, SMD Drag Solder, SMD Tips, 1980 Soldering Videos.Gerbv, GerberLogix, DFM Now, ViewMate, ZofzPCB, GC-Prevue. Pro ($$$$): Altium, Allegro, OrCAD, PADS, Xpedition. WIKI / FAQ / PCB Review Tips / 3D models / SPICE models / Book ListĮagle, Fritzing, Horizon, KiCad, LibrePCB, ( Comparison).Links within /r/PrintedCircuitBoard subreddit: Also, make sure to measure the temperature of the aluminum, and not the surrounding air. This subreddit isn't meant for repairing PCBs. The solder paste itself needs to reach at least 249C (as per our recommended reflow profile) to fully melt, but you will usually need to heat your aluminum hotter than this. Official Printed Circuit Board Subreddit - schematic capture / PCB layout / gerber / review / electronics assembly / circuit simulation.
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