Method of forming through-silicon vias

Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C257S621000, C257S774000, C257SE21597, C257SE23174, C438S584000

Reexamination Certificate

active

07825024

ABSTRACT:
A method of forming a semiconductor device having a through-silicon via (TSV) is provided. A semiconductor device is provided having a first dielectric layer formed thereon. One or more dielectric layers are formed over the first dielectric layer, such that each of the dielectric layers have a stacking structure, wherein the stacking structures in the one or more dielectric layers are vertically aligned. The stacking structures may be, for example, metal rings. The stacking structures are then removed to form a first recess. A second recess is formed by extending the first recess into the substrate. The second recess is filled with a conductive material to form the TSV.

REFERENCES:
patent: 7402903 (2008-07-01), Matsuo
patent: 7564115 (2009-07-01), Chen et al.
patent: 7626257 (2009-12-01), Knorr
patent: 2005/0003650 (2005-01-01), Ramanathan et al.
patent: 2009/0121321 (2009-05-01), Miccoli et al.
patent: 2009/0315154 (2009-12-01), Kirby et al.
Zhang, Y., et al., “Fast Copper Plating Process for TSV Fill,” International Microsystems, Packaging, Assembly and Circuits Technology, Oct. 13, 2007, pp. 219-222.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of forming through-silicon vias does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of forming through-silicon vias, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming through-silicon vias will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4252135

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.