Inventor
CHAKRABARTI UTPAL KUMAR
US19 patents
⚠️ This page may combine multiple inventors who share the name “CHAKRABARTI UTPAL KUMAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUCENT TECHNOLOGIES INC
10 patentsUS6214178B1Apr 10, 2001
Focused ion beam formation of angled optoelectronic devices
LUCENT TECHNOLOGIES INC22 citations91
US5668049ASep 16, 1997
Method of making a GaAs-based laser comprising a facet coating with gas phase sulphur
LUCENT TECHNOLOGIES INC32 citations91
US5911830AJun 15, 1999
Method and fixture for laser bar facet coating
LUCENT TECHNOLOGIES INC17 citations90
US5802091ASep 1, 1998
Tantalum-aluminum oxide coatings for semiconductor devices
LUCENT TECHNOLOGIES INC43 citations89
US6247625B1Jun 19, 2001
Anvil pad configuration for laser cleaving
LUCENT TECHNOLOGIES INC11 citations72
US6048747AApr 11, 2000
Laser bar cleaving apparatus
LUCENT TECHNOLOGIES INC13 citations72
US6037006AMar 14, 2000
Method and fixture for laser bar facet coating
LUCENT TECHNOLOGIES INC13 citations71
US5719077AFeb 17, 1998
Fixture and method for laser fabrication by in-situ cleaving of semiconductor bars
LUCENT TECHNOLOGIES INC13 citations66
US6098862AAug 8, 2000
Incrementally continuous laser cleaving process
LUCENT TECHNOLOGIES INC2 citations61
US6033926AMar 7, 2000
Method for making multiple wavelength semiconductor lasers on a single wafer
LUCENT TECHNOLOGIES INC6 citations57