Most layers in a printed circuit board

According to Official Guinness Records,

The most layers in a printed circuit board is 129, and it was created and released by Denso Corporation (Japan) in Chita, Aichi, Japan, on 13 June 2012. Printed circuit boards are used in various electronic devices, such as computers and cell phones.

For a complete list of 2012 records, please visit 2012 Guinness Records in Japan.

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