1
Radhakrishna Aditham, Philip Chang, Paul H Kramer: Authenticating remote users in a distributed environment. International Business Machines Corporation, Jeffrey S LaBaw, David H Judson, January 6, 1998: US05706349 (64 worldwide citation)

In a distributed computing environment, a token is issued to a remote user if a security mechanism initially can determine that the remote user is who he claims to be. Thereafter, a connection between a remote user and an application server requires the application server to first verify that a toke ...


2
Szelap Philip Chang, Manoj Apte, Saravanan Deenadayalan: Managing timeouts for dynamic flow capture and monitoring of packet flows. Juniper Networks, Shumaker & Sieffert P A, December 15, 2009: US07633944 (53 worldwide citation)

Techniques are described for managing timeouts of filter criteria in a packet flow capture applications. The techniques allow for handling large amounts of timeouts used when monitoring a high volume of packet flows, without placing extreme demands on the operating system for managing the timeouts. ...


3
Lawrence P Muray, Ho Seob Kim, T H Philip Chang: Integrated microcolumn and scanning probe microscope arrays. Applied Materials, Jung hua Kuo, April 9, 2002: US06369385 (22 worldwide citation)

An apparatus for surface inspection and processing of a wafer includes a microcolumn and an associated scanning probe microscope. The microcolumn enables high speed scanning of the wafer at a relatively high resolution, while the scanning probe microscope provides atomic resolution of highly localiz ...


4
Tai Hon Philip Chang: Combined multiple beam size and spiral scan method for electron beam writing of microcircuit patterns. International Business Machines Corporation, John W Henderson Jr, May 11, 1976: US03956635 (20 worldwide citation)

A method for electron beam writing of microcircuit patterns utilizing the combination of spiral scan techniques and variable beam sizes. The circuit patterns are outlined in a spiral scan motion using a small size beam in order to ensure good edge sharpness and accuracy. The beam is then increased i ...


5
C Neil Berglund, Tai Hon Philip Chang: Method and apparatus for direct writing of semiconductor die using microcolumn array. November 14, 2000: US06145438 (18 worldwide citation)

In electron beam lithography, a lithography system uses multiple microcolumns in an array to increase throughput for direct writing of semiconductor wafers. The mismatch between the microcolumn array and the semiconductor die periodicity is resolved by using only one microcolumn to scan each individ ...


6
Kim Y Lee, Ho Seob Kim, Stephen A Rishton, Tai Hon Philip Chang: Precision alignment and assembly of microlenses and microcolumns. Etec Systems, Greg Leitich, August 28, 2001: US06281508 (17 worldwide citation)

A method and the associated apparatus for alignment and assembly of microlenses and microcolumns in which aligning structures such as rigid fibers are used to precisely align multiple microlens components. Alignment openings are formed in the microlens components and standard optical fibers are thre ...


7
Tai Hon Philip Chang, Hoseob Kim: Detecting registration marks with a low energy electron beam. Etec Systems, Michael J Halbert, Skjerven Morrill MacPherson Franklin & Friel, December 28, 1999: US06008060 (14 worldwide citation)

For electron beam wafer or mask processing, a registration mark is capacitively coupled to the top surface of an overlying resist layer on a substrate to form a voltage potential on the surface of the resist layer directly over the registration mark. The registration mark is directly connected to an ...


8
Kim Y Lee, Tai Hon Philip Chang, Marian Mankos, C Neil Berglund: Method of forming gated photocathode for controlled single and multiple electron beam emission. Etec Systems, Frank Bernstein, Skjerven Morrill MacPhearson, Sughrue Mion Zinn Macpeak & Seas, April 24, 2001: US06220914 (11 worldwide citation)

A photocathode having a gate electrode so that modulation of the resulting electron beam is accomplished independently of the laser beam. The photocathode includes a transparent substrate, a photoemitter, and an electrically separate gate electrode surrounding an emission region of the photoemitter. ...


9
Kim Y Lee, Tai Hon Philip Chang, Marian Mankos, C Neil Berglund: Gated photocathode for controlled single and multiple electron beam emission. Applied Materials, Sughrue Mion Zinn MacPeak & Seas, April 23, 2002: US06376985 (11 worldwide citation)

A photocathode having a gate electrode so that modulation of the resulting electron beam is accomplished independently of the laser beam. The photocathode includes a transparent substrate, a photoemitter, and an electrically separate gate electrode surrounding an emission region of the photoemitter. ...


10
Lawrence Peter Muray, Kim Y Lee, Stephen A Rishton, Ho Seob Kim, Tai Hon Philip Chang: Microcolumn assembly using laser spot welding. Etec Systems, Greg Leitich, Skjerven Morrill MacPhearson, February 27, 2001: US06195214 (9 worldwide citation)

A method for forming microcolumns in which laser spot welding bonds the multiple layers of an electron beam microcolumn. A silicon microlens is laser spot welded to a glass insulation layer by focusing a laser through the insulation layer onto the silicon microlens. The glass layer is transparent to ...



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