DAVID XUDONG WANG, D.D.S
Dentist at University Ave, San Diego, CA

6573156, Jun 3, 2003

Dec 13, 2001

10/020050

David Xuan-Qi Wang - San Diego CA
Jason Yao - San Diego CA

OMM, Inc. - San Diego CA

H01L 2146

438460, 438461, 438462, 438463, 438464

In certain implementations, a method for chip singulation is provided including etching a frontside dicing trench from a front side of a wafer, forming a temporary holding material, in the frontside dicing trench, etching a backside dicing trench from a back side of the wafer along the frontside dicing trench, removing the temporary holding material and releasing the chip from the wafer or an adjacent chip. Certain implementations may include etching through surface deposited layers on the front side of the wafer. Certain implementations may further include completely filling the frontside dicing trench with the temporary holding material and etching the backside dicing trench to the temporary holding material that is in the frontside dicing trench, such that removing the temporary holding material self-dices the wafer. Certain implementations may include surrounding MEMS structures with the temporary holding material so as to hold the structures during etching of the back side of the wafer. Some implementations may include providing a carrier wafer over the front side of the wafer.

7236362, Jun 26, 2007

Nov 18, 2004

10/992451

David G. Wang - San Diego CA, US
P. Keith Muller - San Diego CA, US

NCR Corporation - Dayton OH

H05K 7/20

361695, 361719, 361721, 174 161, 165 802, 165122

An electronic hardware cabinet includes a forced-air component positioned to force a stream of air to move through the cabinet and at least two electronic assemblies mounted within the cabinet, each of which includes a heat-generating component. The electronic assemblies are positioned so that a portion of the stream of air is heated by a first one of the heat-generating components and, thereafter, that portion of the stream of air moves toward a second one of the heat-generating components. An airflow diverter is positioned between the electronic assemblies to deflect that portion of the stream of air heated by the first heat-generating component to prevent it from reaching the second heat-generating component.

2007013, Jun 14, 2007

Dec 14, 2005

11/300624

David Wang - San Diego CA, US

H05K 5/00

454184000

Hardware cabinets contain air-cooled electronic components and are configured to operate in a data center or the like in which the cabinets are arranged in one or more rows and receive coolant air supplied to a cold-air aisle facing the cabinets. Heated air exiting the cabinets is directed to a hot-air aisle for HVAC system return in the data center. An air-flow device component of a hardware cabinet is positioned to create a curtain or wall of air extending from the housing to separate cold air in the cold-air aisle from hot air in the hot-air aisle. Hardware cabinets and retrofit kits using cross flow blowers are disclosed.

2007014, Jun 28, 2007

Jul 28, 2006

11/460639

P. Keith Muller - San Diego CA, US
David G. Wang - San Diego CA, US

B01D 50/00

96417

A technique for use in monitoring the condition of an air filter in an electronics system involves receiving temperature readings gathered over time by a temperature sensor located in the electronics system that houses the air filter, concluding that at least one of the readings exceeds a reference temperature, concluding that a rate of change of at least some of the readings does not exceed a reference rate, and generating an alarm message indicating that the air filter needs attention.