Below hole Archives - 4MCPCB https://4mcpcb.com/tag/below-hole Uooce Inc provides low cost & high quality Multi-layer Flexible Printed circuit board(PCB), learn more [email protected] Tue, 08 Nov 2016 10:08:03 +0000 en-US hourly 1 https://4mcpcb.com/wp-content/uploads/2020/02/cropped-Favicon-16x16-1-32x32.png Below hole Archives - 4MCPCB https://4mcpcb.com/tag/below-hole 32 32 Blow Hole and Outgassing technologies you should know https://4mcpcb.com/blow-hole-and-outgassing-technologies-you-should-know.html Tue, 08 Nov 2016 10:03:00 +0000 http://4mcpcb.com/?p=2766 The definition of Blow Hole Below hole is a type void in the solder fillet. And the below hole caused by outgassing from the barrel of a plated through hole. Then the question is what is outgassing. What is Outgassing? If you have learned PCB design theory, you may find the definition of outgassing is [...]

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