Patent ID: 7208346
Filing Date: 2007-04-24
Classification: H01L

Abstract:
1. A method of forming at least one interposer on a surface of one or more dies of a wafer, the method comprising: positioning a first interposer forming stencil about parallel to and adjacent the wafer, the first interposer forming stencil having at least one first interposer forming aperture disposed therein; positioning the at least one first interposer forming aperture above a respective die surface disposed adjacent thereto; urging, with an interposer stenciling apparatus, an interposer material into and through the at least one first interposer forming aperture to deposit the interposer material on the respective die surface positioned adjacent the at least one first interposer forming aperture; shaping the interposer material with the at least one first interposer forming aperture to form a first interposer structure on the die surface; and after forming the first interposer structure, using a second interposer forming stencil having at least one second interposer forming aperture disposed therein to stencil a second interposer structure directly on and in physical contact with the first interposer structure, wherein the second interposer structure comprises a different geometry than the first interposer structure, wherein the first interposer structure and the second interposer structure form a third interposer structure.