GDDR5/6 Reballing Jig
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Simple GDDR5 and GDDR6 reballing jig for direct heat stencils
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Update 13.01.2026 - I've added GDDR5x variant
Simple GDDR5/6 reballing jig for direct heat stencil (but don't use it as direct heat, you will burn it down 😁).
For one assembly you will need :
4x M3 screw and nut (without washers)
direct heat GDDR5 / 6 stencil (marked as DDR5 - 0,45mm and DDR6 - 0,45mm) on Aliexpress, they are often part of stencils kit with that basic aluminium holder.
For GDDR5X fits stencil marked DDR7 (weird, but it works)
Assembling this jig is easy, just put stencil between top and middle part.. If you have GDDR chip with balls, you can use it for stencil alligment. Then just tight top and middle part with four M3 screws and nuts.
It's not perfect, but for me it works flawlessly.
After printing, it can be tight fit, so just sand down edges of chip holder on base, it should do the trick.
I printed it with Nebula PLA and using it for a few months now without problem.
Between the files there is a Fusion file, If someone want to roast my 3D modeling skills, or just edit it for different chip / stencil.