Does anyone have experience about what is requied to reflow a BGA?
I ask because lately there are adhesive stencils that permamently adhere to the PCB and then you squeegee the solder paste onto the stencil and place the BGA onto the stencil. THe thickness of the stencil apparenly makes it so you can feel where the BGA balls fall into the holes on the stencil for proper alignment. But BGAs apparently self-center during reflow anyways so I'm not sure if this would help with doing a toaster oven reflow at home.
Like with a $50+ chip like an FPGA it might be unacceptable and you should just pay to get it professionally mounted. But I know of no local places. But maybe for a $20 MCU that is a 256BGA it might be acceptable if you mess the chip up and need to use another one? It'd be hard to check though if it's actually soldered in properly.
Why you ask? it'd be mighty nice to have the LCD conntroller that is only available on the 256BGA packages. Anything smaller would require me to bit blast stuff...it's doable though with the M0 coprocessor and the SGPIO on the LPC43xx.
I ask because lately there are adhesive stencils that permamently adhere to the PCB and then you squeegee the solder paste onto the stencil and place the BGA onto the stencil. THe thickness of the stencil apparenly makes it so you can feel where the BGA balls fall into the holes on the stencil for proper alignment. But BGAs apparently self-center during reflow anyways so I'm not sure if this would help with doing a toaster oven reflow at home.
Like with a $50+ chip like an FPGA it might be unacceptable and you should just pay to get it professionally mounted. But I know of no local places. But maybe for a $20 MCU that is a 256BGA it might be acceptable if you mess the chip up and need to use another one? It'd be hard to check though if it's actually soldered in properly.
Why you ask? it'd be mighty nice to have the LCD conntroller that is only available on the 256BGA packages. Anything smaller would require me to bit blast stuff...it's doable though with the M0 coprocessor and the SGPIO on the LPC43xx.
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