摘要:
Provided is a printed circuit board including: an insulating layer; electronic devices embedded in the insulating layer; and an adhesive layer for fixing the electronic devices.
摘要:
Provided is a method of manufacturing a printed circuit board for mounting a chip, the method including: providing a chip mounting cavity in a core layer; mounting the chip to the chip mounting cavity forming a first insulating material layer on one surface of the core layer to fill a space formed between the chip mounting cavity and the chip and forming a second material layer of a different kind from that of the first insulating material layer on the one surface of the core layer.
摘要:
Provided is a vacuum heat treatment apparatus having a structure which is able to improve the recovery rate of synthesized powder by optimizing a shape of a reaction container, and prevent a scattering phenomenon of the synthesized power within the reaction container, and at the same time to enhance a recovery amount of the powder in such a manner that reaction gas has vortex flow thanks to a groove of a lower part of a cover unit and is discharged to the outside through an exhaust port formed on an upper part of a crucible.