Eric W Li

6537668, Mar 25, 2003

Oct 2, 1998

09/165513

Veerasamy Vijayen - Farmington Hills MN
Manfred Weiler - Elbersdorf, DE
Eric Li - Palo Alto CA

United Module Corporation, Inc. - San Francisco CA

G11B 572

428408, 428694 TC

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the sp carbon-carbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or âquasi-staticâ) magnetic field, which promotes resonant ionization and ion beam homogenization.

6544627, Apr 8, 2003

Aug 25, 2000

09/648341

Veerasamy Vijayen - Farmington Hills MN
Manfred Weiler - Elbersdorf, DE
Eric Li - Palo Alto CA

United Modular Corporation - Los Altos CA

B32B 900

428141, 428408, 428336

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the sp carbon-carbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or âquasi-staticâ) magnetic field, which promotes resonant ionization and ion beam homogenization.

6740384, May 25, 2004

Jan 29, 2003

10/354336

Vijayen Veerasamy - San Jose CA, 95133
Manfred Weiler - D-018833 Elbersdorf, DE
Eric Li - Palo Alto CA, 94306

G11B 572

428 655, 428408, 428336, 428694 TC, 360 9701, 360135

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the sp carbon-carbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or âquasi-staticâ) magnetic field, which promotes resonant ionization and ion beam homogenization.

6805891, Oct 19, 2004

Jan 23, 2003

10/350498

Veerasamy Vijayen - San Jose CA
Manfred Weiler - Elbersdorf, DE
Eric Li - Palo Alto CA

United Mobile Corporation - Los Altos CA

G11B 572

426336, 428408, 428694 TC

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the sp carbonâcarbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or âquasi-staticâ) magnetic field, which promotes resonant ionization and ion beam homogenization.

7402350, Jul 22, 2008

Aug 9, 2006

11/463575

Vijayen Veerasamy - San Jose CA, US
Manfred Weiler - Elbersdorf, DE
Eric Li - Palo Alto CA, US

Stormedia Texas, LLC - Tyler TX

G11B 5/706

4288475, 428800, 428846

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the spcarbon-carbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or “quasi-static”) magnetic field, which promotes resonant ionization and ion beam homogenization.

7513215, Apr 7, 2009

Aug 9, 2006

11/463577

Veerasamy Vijayen - Farmington Hills MN, US
Manfred Weiler - Elbersdorf, DE
Eric Li - Palo Alto CA, US

Stormedia Texas, LLC - Tyler TX

C23C 16/00

118723AN, 118723 FI

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the spcarbon-carbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or “quasi-static”) magnetic field, which promotes resonant ionization and ion beam homogenization.

7544397, Jun 9, 2009

Feb 6, 2004

10/773796

Vijayen Veerasamy - San Jose CA, US
Manfred Weiler - Elbersdorf, DE
Eric Li - Palo Alto CA, US

Stormedia Texas, LLC - Tyler TX

C23C 14/06
C23C 14/22
C23C 16/26
C23C 16/50
H05H 1/16
H05H 1/24
C23C 14/48
C23C 14/46
C23C 16/27

427525, 427562, 427577, 427571, 250424

The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it features a large number of the spcarbon-carbon bonds which are found within a diamond crystal lattice. The material is also amorphous, providing a combination of short-range order with long-range disorder, and can be deposited as films which are ultrasmooth and continuous at thicknesses substantially lower than known amorphous carbon coating materials. The carbon protective coatings of the present invention will often be hydrogenated. In a preferred method for depositing of these materials, capacitive coupling forms a highly uniform, selectively energized stream of ions from a dense, inductively ionized plasma. Such inductive ionization is enhanced by a relatively slow moving (or “quasi-static”) magnetic field, which promotes resonant ionization and ion beam homogenization.

7570568, Aug 4, 2009

Jan 13, 2005

10/585399

Eric Li - Milpitas CA, US

Silicon Core Technology, Inc. - Milpitas CA

G11B 7/00

369116, 369 5326

A writing current circuit () supplies a controlled electrical current to a laser diode () for recording data swiftly onto a DVD (). A plurality of thermometer code registers () respectively store numerical values. A current control register () receives a numerical value from one of the thermometer code registers (). Serial data specifies a sequence in which individual thermometer code registers () supply values to the current control register () thereby causing the writing current circuit () to supply a particular electrical current waveform to the laser diode (). A plurality of current sources () respectively receive a single output signal from the current control register () which activates or deactivates individual current sources () for supplying a particular quantity of current to the laser diode ().