Kevin Chen

US Patent:

7170185, Jan 30, 2007

Filed:

Oct 17, 2000

Appl. No.:

09/690600

Inventors:

Peter B. Hogerton - White Bear Lake MN, US
Kevin Yu Chen - San Diego CA, US
Joel A. Gerber - Orono MN, US
Robert L. D. Zenner - Minneapolis MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01L 23/52
H01L 23/48
H01L 23/40
H01L 23/485
H01L 23/498

US Classification:

257780, 257778, 257738, 257E23021, 257E23069

Abstract:

The present invention relates to a method for connecting an integrated circuit chip to a circuit substrate. The method includes the step of pre-applying adhesive directly to a bumped side of an integrated circuit chip. The method also includes the steps of removing portions of the adhesive from the tips of the solder bumps to expose a contact surface, and pressing the bumped side of the integrated circuit chip, which has previously been coated with adhesive, against the circuit substrate such that the bumps provide an electrical connection between the integrated circuit chip and the circuit substrate. The adhesive is removed from the tips of the solder bumps using a solvent assisted wiping action. The pre-applied adhesive on the chip forms a bond between the integrated circuit chip and the circuit substrate.

US Patent:

20070102827, May 10, 2007

Filed:

Jan 8, 2007

Appl. No.:

11/620813

Inventors:

Peter Hogerton - White Bear Lake MN, US
Kevin Chen - San Diego CA, US
Joel Gerber - Orono MN, US
Robert Zenner - Minneapolis MN, US

International Classification:

H01L 23/48
H01L 21/00

US Classification:

257778000, 438108000, 257E21503

Abstract:

The present invention relates to a method for connecting an integrated circuit chip to a circuit substrate. The method includes the step of pre-applying adhesive directly to a bumped side of an integrated circuit chip. The method also includes the steps of removing portions of the adhesive from the tips of the solder bumps to expose a contact surface, and pressing the bumped side of the integrated circuit chip, which has previously been coated with adhesive, against the circuit substrate such that the bumps provide an electrical connection between the integrated circuit chip and the circuit substrate. The adhesive is removed from the tips of the solder bumps using a solvent assisted wiping action. The pre-applied adhesive on the chip forms a bond between the integrated circuit chip and the circuit substrate.

US Patent:

62460102, Jun 12, 2001

Filed:

Nov 25, 1998

Appl. No.:

9/199693

Inventors:

Robert L. D. Zenner - Minneapolis MN
Joel Arthur Gerber - St. Paul MN
Kevin Yu Chen - Eagan MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H05K 116
H05K 114
H05K 111

US Classification:

174260

Abstract:

The present invention is an ultra-thin circuit package with a thinned electronic device having a thickness of less than about 100. mu. m; a flexible circuit substrate; and an adhesive layer with a thickness of less than about 25. mu. m between the electronic device and the circuit substrate. The circuit package is less than about 275. mu. m thick. In another embodiment, the circuit packages may be stacked on one another and laminated together to create an extremely high-density three-dimensional electronic circuit package.

US Patent:

60176563, Jan 25, 2000

Filed:

Oct 3, 1997

Appl. No.:

8/943637

Inventors:

Ann M. Crespi - Minneapolis MN
Kevin Chen - New Brighton MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

H01M 618

US Classification:

429307

Abstract:

An electrochemical cell containing a cathode comprising silver vanadium oxide and an anode comprising lithium is disclosed that includes an improved electrolyte composition having the solvents propylene carbonate and 1,2-dimethoxyethane, and an additional third solvent that reduces the solubility of the composition of the silver vanadium cathode material. Preferably, the third solvent is a dialkyl carbonate such as dimethyl carbonate, diethyl carbonate or ethylmethyl carbonate. The improved electrolyte composition reduces the build up of resistance in the cell during cell discharge, and may affect the cell's performance in implantable cardiac defibrillator applications. The cell of the present invention may include a hybrid cathode containing a mixture of silver vanadium oxide and carbon monofluoride (CF. sub. x).

US Patent:

57667977, Jun 16, 1998

Filed:

Nov 27, 1996

Appl. No.:

8/757220

Inventors:

Ann M. Crespi - Minneapolis MN
Kevin Chen - New Brighton MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

H01M 614

US Classification:

429197

Abstract:

A lithium/silver vanadium oxide cell is disclosed that includes an improved electrolyte composition having the solvents propylene carbonate and 1,2-dimethoxyethane, and an additional third solvent that reduces the solubility of the composition of the silver vanadium cathode material. Preferably, the third solvent is a dialkyl carbonate such as dimethyl carbonate, diethyl carbonate or ethylmethyl carbonate. The improved electrolyte composition reduces the build up of resistance in the cell during cell discharge, and can affect the cell's performance in implantable cardiac defibrillator applications.

US Patent:

20190224440, Jul 25, 2019

Filed:

Mar 14, 2019

Appl. No.:

16/354137

Inventors:

- San Clemente CA, US
John Logan - PLymouth MN, US
Haim Nissimov - Laguna Hills CA, US
Richard Ewers - Fullerton CA, US
Mark Adler - Carlsbad CA, US
Eugene G. Chen - Carlsbad CA, US
John Edwin Trusheim - Chaska MN, US
John Nolting - Poway CA, US
Stephen William Anderson - Minneapolis MN, US
Kevin Chen - Palos Verdes Estates CA, US

International Classification:

A61M 16/20
A61M 16/08
A61M 16/06
A61M 16/00
A61B 5/00
A61B 5/11

Abstract:

A system for treating a patient suffering from obstructive sleep apnea or snoring is diclsoed. The system includes an air flow generator configured to deliver an air flow at a positive therapeutic pressure during the treatment, and an expiratory valve with an open pressure connected air flow generator. The open pressure is dependent on the therapeutic pressure from the air flow generator. The expiratory valve further exerts a back pressure upon each exhalation from the patient sufficient to create a pneumatic splint in the patient's respiratory tract. The exhalation from the patient has a first half followed by a second half and the back pressure is varied such that during the start of the first half the back pressure is between 0 and 50% of a peak back pressure and increases to a peak back pressure in the second half.

US Patent:

20140246024, Sep 4, 2014

Filed:

May 15, 2014

Appl. No.:

14/278398

Inventors:

- San Clemente CA, US
John Logan - Plymouth MN, US
Haim Nissimov - Laguna Hills CA, US
Richard Ewers - Fullerton CA, US
Mark Adler - Carlsbad CA, US
Eugene G. Chen - Carlsbad CA, US
John Edwin Trusheim - Chaska MN, US
John Nolting - Poway CA, US
Steve Anderson - Minneapolis MN, US
Kevin Chen - Palos Verdes Estates CA, US

Assignee:

Fresca Medical, Inc. - San Clemente CA

International Classification:

A61M 16/20
A61B 5/11
A61B 5/00
A61M 16/08
A61M 16/00

US Classification:

12820419, 12820524, 12820423, 29428

Abstract:

A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.

US Patent:

20140246025, Sep 4, 2014

Filed:

May 15, 2014

Appl. No.:

14/278587

Inventors:

- San Clemente CA, US
John Logan - Plymouth MN, US
Haim Nissimov - Laguna Hills CA, US
Richard Ewers - Fullerton CA, US
Mark Adler - Carlsbad CA, US
Eugene G. Chen - Carlsbad CA, US
John Edwin Trusheim - Chaska MN, US
John Nolting - Poway CA, US
Steve Anderson - Minneapolis MN, US
Kevin Chen - Palos Verdes Estates CA, US

Assignee:

Fresca Medical, Inc. - San Clemente CA

International Classification:

A61M 16/20
A61B 5/11
A61M 16/08
A61B 5/00
A61M 16/00
A61M 16/06

US Classification:

12820419, 12820518, 12820524, 12820421, 12820423, 29890124

Abstract:

A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.