Patent Number: 6,294,830

Title: Microelectronic assembly with conductive terminals having an exposed surface through a dielectric layer

Abstract: A microelectronic assembly includes a microelectronic element having a front face including contacts and a back surface remote therefrom, and a mass of a dielectric material at least partially encapsulating the microelectronic element so that the encapsulated microelectronic element forms a body having exterior surfaces, whereby the back surface of the microelectronic element is exposed at an exterior surface of the body. The microelectronic assembly also includes conductive units secured to the mass of dielectric material, the units including bottom flange portions overlying a surface of the body, top flange portions remote from the bottom flange portions and posts extending from the flange portions into the body, the bottom and top flange portions having larger cross-sectional dimensions than the posts, and conductive elements extending through the mass of dielectric material, the conductive elements electrically interconnecting the contacts with the conductive units.

Inventors: Fjelstad; Joseph (Sunnyvale, CA)

Assignee: Tessera, Inc.

International Classification: H01L 21/02 (20060101); H01L 21/67 (20060101); H01L 21/56 (20060101); H01L 23/31 (20060101); H01L 21/48 (20060101); H01L 23/28 (20060101); H01L 21/68 (20060101); H01L 25/18 (20060101); H01L 023/34 ()

Expiration Date: 09/25/2018