Patent ID: 9159693
Filing Date: 2015-10-13
Classification: H01L,H05K

Abstract:
1. A hybrid substrate with high density and low density substrate areas, comprising: a low density substrate layer having a cavity formed at an intermediate area thereof and a low density area having a low pattern density around the cavity; a high density substrate layer mounted in the cavity of the low density substrate layer and formed of a high density area having a higher pattern density than that of the low density area; an insulating support layer comprising an area in which an insulating material is deposited on upper portions, lower portions or the upper and lower portions of the high density substrate layer and the low density substrate layer, the insulating support layer constituted by a filled area filled in a space between the high density substrate layer and the cavity, and a deposition area formed on the upper portion or the lower portion of the high density substrate layer and low density substrate layer; insulating layer vias passing through the area of the insulating support layer and connected to patterns of the high density substrate layer and the low density substrate layer; an outer pattern layer comprising first circuit patterns connected to the insulating layer vias and being formed on the area of the insulating support layer; and a protection layer formed on the remaining lower or upper portion of the high density substrate layer and low density substrate layer, on which the insulating support layer is not formed to expose second circuit patterns formed on the remaining lower or upper portion of the high density substrate layer and low density substrate layer.