YC

Yonghwa Chris Cha

Applied Materials: 9 patents #1,414 of 7,310Top 20%
Overall (All Time): #579,725 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8309446 Hybrid heterojunction solar cell fabrication using a doping layer mask Timothy Weidman, Rohit Mishra, Michael P. Stewart, Kapila Wijekoon, Hongbin Fang 2012-11-13
8207005 Forming solar cells using a patterned deposition process Timothy Weidman, Rohit Mishra, Michael P. Stewart, Kapila Wijekoon, Tristan R. Holtam +1 more 2012-06-26
8183081 Hybrid heterojunction solar cell fabrication using a metal layer mask Timothy Weidman, Rohit Mishra, Michael P. Stewart, Kapila Wijekoon, Hongbin Fang 2012-05-22
7951637 Back contact solar cells using printed dielectric barrier Timothy Weidman, Rohit Mishra, Michael P. Stewart, Kapila Wijekoon, Tristan R. Holtam +1 more 2011-05-31
7611990 Deposition methods for barrier and tungsten materials Ki Hwan Yoon, Sang Ho Yu, Hafiz Farooq Ahmad, Ho Sun Wee 2009-11-03
7416979 Deposition methods for barrier and tungsten materials Ki Hwan Yoon, Sang Ho Yu, Hafiz Farooq Ahmad, Ho Sun Wee 2008-08-26
6740585 Barrier formation using novel sputter deposition method with PVD, CVD, or ALD Ki Hwan Yoon, Sang Ho Yu, Hafiz Farooq Ahmad, Ho Sun Wee 2004-05-25
6660135 Staged aluminum deposition process for filling vias Sang Ho Yu, Murali Abburi, Shri Singhvi, Fufa Chen 2003-12-09
6352620 Staged aluminum deposition process for filling vias Sang Ho Yu, Murali Abburi, Shri Singhvi, Fufa Chen 2002-03-05