Detecting multi-domain states in perpendicular magnetic media

Details Detecting multi-domain states in perpendicular magnetic media Detecting multi-domain states in perpendicular magnetic media

2007-10-23

2007-10-23

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

By polarized light examination

Of surface reflection

C356S448000

Reexamination Certificate

active

11220045

ABSTRACT:
In one embodiment a system to detect multi-domain regions in the soft under layer of a perpendicular magnetic media comprises a radiation targeting assembly to target a polarized radiation beam onto a surface of a substrate covered by the soft under layer of a perpendicular magnetic media, a radiation collecting assembly that collects radiation reflected from the surface, a processor coupled to the first radiation collecting assembly, and a memory module coupled to the processor. The memory module comprises logic instructions which, when executed by the processor, configure the processor to record signal values from radiation reflected by the radiation beam at different positions on the surface and analyze the signal values to detect a region of multiple magnetic domains in the soft under layer of a perpendicular magnetic media.

REFERENCES:
patent: 4585348 (1986-04-01), Chastang
patent: 4870631 (1989-09-01), Stoddard
patent: 4873430 (1989-10-01), Juliana
patent: 5189481 (1993-02-01), Jann
patent: 5270794 (1993-12-01), Tsuji
patent: 5392116 (1995-02-01), Makosch
patent: 5416594 (1995-05-01), Gross
patent: 5610897 (1997-03-01), Yamamoto
patent: 5633747 (1997-05-01), Nikoonahad
patent: 5644562 (1997-07-01), de Groot
patent: 5798829 (1998-08-01), Vaez-Iravani
patent: 5864394 (1999-01-01), Jordan
patent: 5880838 (1999-03-01), Marx
patent: 5903342 (1999-05-01), Yatsugake
patent: 5985680 (1999-11-01), Singhal
patent: 5986763 (1999-11-01), Inoue
patent: 5995226 (1999-11-01), Abe
patent: 6031615 (2000-02-01), Meeks
patent: 6081325 (2000-06-01), Leslie
patent: 6130749 (2000-10-01), Meeks
patent: 6198533 (2001-03-01), Meeks
patent: 6229610 (2001-05-01), Meeks
patent: 6268919 (2001-07-01), Meeks
patent: 6392749 (2002-05-01), Meeks
patent: 6624884 (2003-09-01), Imaino
patent: 6665078 (2003-12-01), Meeks
patent: 6687008 (2004-02-01), Peale
patent: 6704435 (2004-03-01), Imaino
patent: 6717671 (2004-04-01), Meeks
patent: 6751044 (2004-06-01), Meeks
patent: 6757056 (2004-06-01), Meeks
patent: 6781103 (2004-08-01), Lane
patent: 6781688 (2004-08-01), Kren et al.
patent: 2002/0015146 (2002-02-01), Meeks
patent: 2002/0145740 (2002-10-01), Meeks
patent: 2002/0163634 (2002-11-01), Meeks
patent: 2003/0025905 (2003-02-01), Meeks
patent: 2004/0017561 (2004-01-01), Meeks
patent: 2004/0046959 (2004-03-01), Meeks
patent: 2004/0160604 (2004-08-01), Meeks
patent: 2004/0169850 (2004-09-01), Meeks
patent: 2004/0233419 (2004-11-01), Meeks
patent: 2005/0057747 (2005-03-01), Meeks

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