Patent ID: 7646098
Filing Date: 2010-01-12
Classification: H01L,H05K,Y10T

Abstract:
1. A multilayered circuitized substrate comprising: a core substrate having a thickness between 20 and 200 microns including a first dielectric layer being no greater than 0.1524 mm, having a p-aramid paper impregnated with a composition including halogen-free, low moisture absorptivity resin including an inorganic particulate filler and not including continuous or semi-continuous fiberglass fibers as part thereof and a first circuitized layer directly positioned on said first thin dielectric layer; and a second dielectric layer being no greater than 0.1524 mm, bonded to said thin core substrate to form a multilayered circuitized substrate, said second thin dielectric layer being of a composition similar to said composition of said first thin dielectric layer of said thin core substrate, said second dielectric layer not including continuous or semi-continuous fiberglass fibers.