Semiconductor component with coreless transformer

Details Semiconductor component with coreless transformer Semiconductor component with coreless transformer

2005-03-25

2008-08-26

Vu, Hung (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

Passive components in ics

C257S211000, C257S659000

Reexamination Certificate

active

07417301

ABSTRACT:
The invention relates to a semiconductor component having a coreless first transformer (71, 72) which comprises a first (71) and a second (72) planar winding, is arranged on a semiconductor body9and is surrounded in the lateral direction by a protective ring (1, 2). The protective ring (1, 2) has metal portions (1a-1d), of which the top metal portion (1a) is further apart of the first planar winding (71) in the lateral direction than the protective ring (1b) which is second from top.

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patent: 693 32 599 (2003-11-01), None
patent: 07122904 (1995-05-01), None
patent: WO 92/16043 (1992-09-01), None
Tang et al., “Coreless Printed Circuit Board (PCB) Transformers with Multiple Secondary Windings for Complementary Gate Drive Circuits”, IEEE Transactions on Power Electronics, 1999, vol. 14, No. 3, pp. 431-437, (7 pages).
Kaschani et al., “Coreless Transformer a New Technology for Half Bridge Driver IC's”, PCIM 2003, Nuremburg, (4 pages).

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