Patent ID: 6221694
Filing Date: 2001-04-24
Classification: H01L,H05K

Abstract:
A method of making a circuitized substrate, said method comprising the steps of:providing an electrically insulative base member having first and second surfaces and at least one contact hole extending entirely therethrough, said contact hole having at least one sidewall;removing a preselected portion of said base member to form at least one aperture having at least one sidewall extending entirely through said base member, said aperture defining boundaries of an opening within said insulative base member such that said insulative base member can, subsequently accommodate a chip positioned in said opening;applying a first electrically conductive layer onto said first and second surfaces of said base member, including on said at least one sidewall of said aperture and on said at least one sidewall of said contact hole;applying a second electrically conductive layer onto said first electrically conductive layer to substantially cover said first electrically conductive layer;applying photoimageable material onto said second conductive layer;exposing and developing selected portions of said photoimageable material to define a pattern within said photoimageable material on said second conductive layer;circuitizing said second conductive layer; andremoving said photoimageable material from said second conductive layer.