Transformer former between two layout layers

Details Transformer former between two layout layers Transformer former between two layout layers

2005-07-05

2005-07-05

Mai, Anh (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S232000, C336S223000

Reexamination Certificate

active

06914509

ABSTRACT:
A printed circuit transformer includes a first wiring layer, a second wiring layer, a primary conductive coil including a first conductive trace, a second conductive trace, a third conductive trace, and a fourth conductive trace, which are on the first wiring layer or the second wiring layer, a first via plug, a second via plug, and a third via plug for connecting the ends of the conductive traces in the primary conductive coil, and a secondary conductive coil including a fifth conductive trace, a sixth conductive trace, a seventh conductive trace, and a eighth conductive trace, which are on the first wiring layer or the second wiring layer, a fourth via plug, a fifth via plug, and a sixth via plug for connecting the ends of the conductive traces in the secondary conductive coil.

REFERENCES:
patent: 5877667 (1999-03-01), Wollesen
patent: 6054914 (2000-04-01), Abel et al.
patent: 6097273 (2000-08-01), Frye et al.
patent: 6501363 (2002-12-01), Hwu et al.
patent: 6713162 (2004-03-01), Takaya et al.
patent: 6717502 (2004-04-01), Yue
patent: 6779261 (2004-08-01), Yue
patent: 05-021243 (1993-01-01), None

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