Patents by Inventor Joon-Won Kang
Joon-Won Kang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090146773Abstract: A MEMS micro-switch with a lateral snap action includes a laterally bowed beam and an electro thermal actuator. The electro thermal actuator can be activated in response to the application of an actuation voltage and a push rod pushes the laterally bowed beam to a transition point through a push-pull connector. The bowed beam can be snapped to an opposite position at the transition point and a moving electrode makes strong contact to fixed electrodes, which makes the switch turn on with strong contact force. The actuator can be deactivated and the push rod pulls the bowed beam back to the transition point and snapped back to an original position, which makes the switch turn off. The switch can be fabricated utilizing glass and SOI wafer bonding technique.Type: ApplicationFiled: December 7, 2007Publication date: June 11, 2009Inventor: Joon Won Kang
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Publication number: 20060091484Abstract: A Micro Electro-Mechanical Systems (MEMS) thermal switch. The switch includes a FET having a source and drain in a substrate and a beam isolated from the substrate, wherein the beam is a monolithic beam. The beam is positioned over the source and the drain and spaced by a predefined gap. When the thermal set point is reached, the beam moves to electrically connect the source to the drain.Type: ApplicationFiled: October 25, 2005Publication date: May 4, 2006Applicant: HONEYWELL INTERNATIONAL INC.Inventor: Joon-Won Kang
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Patent number: 7034375Abstract: A Micro Electro-Mechanical Systems (MEMS) thermal switch. The switch includes a FET having a source and drain in a substrate and a beam isolated from the substrate. The beam is positioned over the source and the drain and spaced by a predefined gap. When the thermal set point is reached, the beam moves to electrically connect the source to the drain.Type: GrantFiled: February 21, 2003Date of Patent: April 25, 2006Assignee: Honeywell International Inc.Inventor: Joon-Won Kang
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Patent number: 6858458Abstract: A contactless acceleration switch detects a threshold acceleration value when a mass attached to a spring, moves towards a source, a drain, and a threshold adjustment channel implanted in a substrate layer. The threshold adjustment channel is located between the source and the drain. The implanted area is located between insulator posts. A spring is attached to the insulator posts. A mass is held above the implanted area by the spring. When the threshold acceleration value is detected, the mass moves towards the substrate layer. The threshold adjustment channel then inverts causing current to flow between the source and the drain, providing an electrical signal indicating that the threshold acceleration value has been reached.Type: GrantFiled: February 11, 2004Date of Patent: February 22, 2005Assignee: Honeywell International Inc.Inventor: Joon-Won Kang
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Publication number: 20040164371Abstract: A Micro Electro-Mechanical Systems (MEMS) thermal switch. The switch includes a FET having a source and drain in a substrate and a beam isolated from the substrate. The beam is positioned over the source and the drain and spaced by a predefined gap. When the thermal set point is reached, the beam moves to electrically connect the source to the drain.Type: ApplicationFiled: February 21, 2003Publication date: August 26, 2004Inventor: Joon-Won Kang
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Publication number: 20040161869Abstract: A contactless acceleration switch detects a threshold acceleration value when a mass attached to a spring, moves towards a source, a drain, and a threshold adjustment channel implanted in a substrate layer. The threshold adjustment channel is located between the source and the drain. The implanted area is located between insulator posts. A spring is attached to the insulator posts. A mass is held above the implanted area by the spring. When the threshold acceleration value is detected, the mass moves towards the substrate layer. The threshold adjustment channel then inverts causing current to flow between the source and the drain, providing an electrical signal indicating that the threshold acceleration value has been reached.Type: ApplicationFiled: February 11, 2004Publication date: August 19, 2004Applicant: Honeywell International Inc.Inventor: Joon-Won Kang
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Patent number: 6720634Abstract: A contactless acceleration switch detects a threshold acceleration value when a mass attached to a spring, moves towards a source, a drain, and a threshold adjustment channel implanted in a substrate layer. The threshold adjustment channel is located between the source and the drain. The implanted area is located between insulator posts. A spring is attached to the insulator posts. A mass is held above the implanted area by the spring. When the threshold acceleration value is detected, the mass moves towards the substrate layer. The threshold adjustment channel then inverts causing current to flow between the source and the drain, providing an electrical signal indicating that the threshold acceleration value has been reached.Type: GrantFiled: January 7, 2002Date of Patent: April 13, 2004Assignee: Honeywell International Inc.Inventor: Joon-Won Kang
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Publication number: 20030127670Abstract: A contactless acceleration switch detects a threshold acceleration value when a mass attached to a spring, moves towards a source, a drain, and a threshold adjustment channel implanted in a substrate layer. The threshold adjustment channel is located between the source and the drain. The implanted area is located between insulator posts. A spring is attached to the insulator posts. A mass is held above the implanted area by the spring. When the threshold acceleration value is detected, the mass moves towards the substrate layer. The threshold adjustment channel then inverts causing current to flow between the source and the drain, providing an electrical signal indicating that the threshold acceleration value has been reached.Type: ApplicationFiled: January 7, 2002Publication date: July 10, 2003Applicant: Honeywell International Inc.Inventor: Joon-Won Kang
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Patent number: 6388299Abstract: A sensor device that provides a relatively uniform electric field between a diaphragm and a substrate, regardless of the displacement of the diaphragm is disclosed. The sensor device provides a uniform spacing between the diaphragm and the substrate over a selected range of diaphragm displacements. A double layer diaphragm is disclosed that includes an upper support member and a lower electrode plate. The lower electrode plate is attached to the upper support member by a post member, and the post member is only attached to the center region of the support member. In another embodiment, an electro-mechanically controlled switch sensor is provided that uses an electrostatic force between the diaphragm and the substrate to produce a bi-stable snapping action.Type: GrantFiled: December 10, 1998Date of Patent: May 14, 2002Assignee: Honeywell Inc.Inventors: Joon-Won Kang, Kelly J. Simonette
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Patent number: 6301795Abstract: A tilt sensor capable of sensing tilt in two axes includes an outer shell, a magnet at a fixed position inside the shell, and a reference element movable within the shell in response to gravity. Magnetic flux follows a plurality of paths from a pole of the magnet, around the shell, through the reference element, to the opposite pole of the magnet. Magnetic sensors detect changes in reluctance of the flux paths resulting from the movement of the reference element within the shell, from which the angle of tilt can be determined.Type: GrantFiled: September 11, 1998Date of Patent: October 16, 2001Assignee: Honeywell Inc.Inventor: Joon-Won Kang