LL

Leping Li

IBM: 48 patents #1,826 of 70,183Top 3%
ST Seagate Technology: 5 patents #1,086 of 4,626Top 25%
📍 Bloomington, MN: #16 of 1,157 inventorsTop 2%
🗺 Minnesota: #792 of 52,454 inventorsTop 2%
Overall (All Time): #49,469 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 26–50 of 53 patents

Patent #TitleCo-InventorsDate
6126848 Indirect endpoint detection by chemical reaction and chemiluminescence James Albert Gilhooly, Clifford Owen Morgan, III, William Joseph Surovic, Cong Wei 2000-10-03
6072313 In-situ monitoring and control of conductive films by detecting changes in induced eddy currents Steven G. Barbee, Arnold Halperin, Tony F. Heinz 2000-06-06
6066564 Indirect endpoint detection by chemical reaction James Albert Gilhooly, Clifford Owen Morgan, III, Cong Wei, Chienfan Yu 2000-05-23
6021679 Probe for slurry gas sampling James Albert Gilhooly, Clifford Owen Morgan, III, Cong Wei, Werner Moser, Matthias Kutter +4 more 2000-02-08
5788801 Real time measurement of etch rate during a chemical etching process Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff, Justin W. Wong 1998-08-04
5770948 Rotary signal coupling for chemical mechanical polishing endpoint detection with a strasbaugh tool Steven G. Barbee, Arnold Halperin, Richard Ruggiero, William Joseph Surovie 1998-06-23
5731697 In-situ monitoring of the change in thickness of films Steven G. Barbee, Arnold Halperin, Tony F. Heinz 1998-03-24
5663637 Rotary signal coupling for chemical mechanical polishing endpoint detection with a westech tool Steven G. Barbee, Gary R. Doyle, Arnold Halperin, Kevin L. Holland, Francis Walter Kazak +4 more 1997-09-02
5660672 In-situ monitoring of conductive films on semiconductor wafers Steven G. Barbee, Arnold Halperin, Tony F. Heinz 1997-08-26
5659492 Chemical mechanical polishing endpoint process control Steven G. Barbee, Arnold Halperin 1997-08-19
5644221 Endpoint detection for chemical mechanical polishing using frequency or amplitude mode Steven G. Barbee, Arnold Halperin 1997-07-01
5582746 Real time measurement of etch rate during a chemical etching process Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff, Justin W. Wong 1996-12-10
5573624 Chemical etch monitor for measuring film etching uniformity during a chemical etching process Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff, Justin W. Wong 1996-11-12
5573623 Apparatus for contactless real-time in-situ monitoring of a chemical etching process Steven G. Barbee, Tony F. Heinz, Eugene H. Ratzlaff 1996-11-12
5559428 In-situ monitoring of the change in thickness of films Steven G. Barbee, Arnold Halperin, Tony F. Heinz 1996-09-24
5516399 Contactless real-time in-situ monitoring of a chemical etching Michael J. Balconi-Lamica, Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff +1 more 1996-05-14
5501766 Minimizing overetch during a chemical etching process Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff, Justin W. Wong 1996-03-26
5500073 Real time measurement of etch rate during a chemical etching process Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff, Justin W. Wong 1996-03-19
5489361 Measuring film etching uniformity during a chemical etching process Steven G. Barbee, Tony F. Heinz, Yiping Hsiao, Eugene H. Ratzlaff, Justin W. Wong 1996-02-06
5480511 Method for contactless real-time in-situ monitoring of a chemical etching process Steven G. Barbee, Tony F. Heinz, Eugene H. Ratzlaff 1996-01-02
5456788 Method and apparatus for contactless real-time in-situ monitoring of a chemical etching process Steven G. Barbee, Madhav Datta, Tony F. Heinz, Eugene H. Ratzlaff, Ravindra V. Shenoy 1995-10-10
5451289 Fixture for in-situ noncontact monitoring of wet chemical etching with passive wafer restraint Steven G. Barbee, Tony F. Heinz, Eugene H. Ratzlaff 1995-09-19
5445705 Method and apparatus for contactless real-time in-situ monitoring of a chemical etching process Steven G. Barbee, Madhav Datta, Tony F. Heinz, Eugene H. Ratzlaff, Ravindra V. Shenoy 1995-08-29
5392124 Method and apparatus for real-time, in-situ endpoint detection and closed loop etch process control Steven G. Barbee, Tony F. Heinz, Ulrich Hofer, Victor J. Silvestri 1995-02-21
5386121 In situ, non-destructive CVD surface monitor Steven G. Barbee, Tony F. Heinz, Victor J. Silvestri 1995-01-31