Applications and advantages of multilayers
Multilayer PCBs are used in a wide range of industries, including:
Telecommunications: For compact and powerful mobile devices. Automotive: For control…
Structure and manufacture of multilayers
Multilayer printed circuit boards consist of several layers of copper foils and thin laminates, which are separated by prepregs (glass fabrics impregnated…
Technological features of multilayers
Through-hole vias
Multilayer-Leiterplatten nutzen verschiedene Arten von Durchkontaktierungen, um die einzelnen Lagen elektrisch zu verbinden:
Through-hole…
Historical development of multilayers
The development of multilayers began in the 1980s when the electronics industry was confronted with increasing demands on the packing density and performance of…
Definition of multilayers
Multilayer PCBs, or multilayers for short, are PCBs that have additional inner layers. In contrast to simple PCBs with only two outer layers, multilayers contain several…
Example of the resistance of a 100mm wide conductor with a length of 100mm on the inner layer
Copper thickness Conductor diameter Line resistance
18µm ≙ 1.8 mm² 0.0012 Ohm
35µm ≙ 3.5 mm² 0.0006…
The prices for 4-layer multilayer prototypes have been significantly reduced. This is made possible by the continuous use of AI (artificial intelligence) in PCB production preparation and the…
For PCBs that are exposed to high thermal loads, it is important to determine the required maximum operating temperature (MOT) in good time in order to determine a suitable material.
The maximum…
CTE-z
The CTE value shows the thermal expansion of the base material. CTE-z represents the z-axis and is e.g. due to the stability of the vias, of high importance. A higher Tg value favors a low…
