Innovation of the Month

Chip Test Boards for Super Computers

CPUs of mainframes for banks and public authorities could not be purchased at the next electronics store quickly. These components are rather high-dense ceramic multilayer modules of the size of a square chocolate. Test boards for these CPUs manufactured by ANDUS are equally complex.

These boards exceed the limits of standard PCBs by fare:

•  PCB size is about 580 by 430 mm and will be produced using the currently larges XXL production
•  The design has 26 layers with mainly 70 µm copper thickness.
•  The board thickness of 4 mm and vias of 0.3 mm diameter lead to an aspect ratio of more than 12:1.
•  Annual rings of 75 µm and equally narrow insulation distances require a maximum of precision when
   positioning the inner layers and when drilling the board.
•  Correct impedances are needed for test signals of 3 GHz and more.

These and more uncommon requirements are a welcome stimulus to maintain a technological lead in the interest of our customers. True to the ANDUS motto: "Excellent PCBs from Berlin".

We are also looking forward to your projects. Please do not hesitate to contact us!

                       Chip Test Boards for Super Computers