Inventor profile of:

Ajay Kumar

City:

Cupertino, California

Country:

United States

Published Applications:

180

Last publication date:

2025-01-16

Top Assignees for applications by Ajay Kumar

The entities that hold a legal rights for patent applications filed by inventor Kumar Ajay:

Recent patent applications by Kumar Ajay

Ajay Kumar from Cupertino, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2025-01-16
US20250022755A1
Electricity

WAFER DICING USING FEMTOSECOND-BASED LASER AND PLASMA ETCH

#2 | 2023-06-29
US20230207393A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#3 | 2021-05-06
US20210134676A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#4 | 2020-09-10
US20200286787A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#5 | 2020-08-13
US20200258780A1
Electricity

TRANSFER ARM FOR FILM FRAME SUBSTRATE HANDLING DURING PLASMA SINGULATION OF WAFERS

#6 | 2020-04-16
US20200118880A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#7 | 2020-03-19
US20200091001A1
Electricity

Wafer dicing using hybrid laser scribing and plasma etch approach with intermediate breakthrough treatment

#8 | 2019-09-26
US20190291206A1
Performing operations; transporting

Mitigation of particle contamination for wafer dicing processes

#9 | 2019-09-12
US20190279902A1
Electricity

Hybrid wafer dicing approach using a multiple pass laser scribing process and plasma etch process

#10 | 2019-03-28
US20190096634A1
Electricity

APPARATUS AND METHODS FOR DRY ETCH WITH EDGE, SIDE AND BACK PROTECTION

#11 | 2019-03-21
US20190088549A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#12 | 2018-12-06
US20180345418A1
Performing operations; transporting

Mitigation of particle contamination for wafer dicing processes

#13 | 2018-11-29
US20180342422A1
Electricity

Light-absorbing mask for hybrid laser scribing and plasma etch wafer singulation process

#14 | 2018-08-09
US20180226355A1
Electricity

Hybrid wafer dicing approach using a split beam laser scribing process and plasma etch process

#15 | 2017-10-17
US15154790
Electricity

Etch mask for hybrid laser scribing and plasma etch wafer singulation process

#16 | 2017-09-28
US20170278801A1
Electricity

Hybrid wafer dicing approach using a rotating beam laser scribing process and plasma etch process

#17 | 2017-09-07
US20170256500A1
Electricity

Hybrid wafer dicing approach using a split beam laser scribing process and plasma etch process

#18 | 2016-12-15
US20160365283A1
Electricity

Etch-resistant water soluble mask for hybrid wafer dicing using laser scribing and plasma etch

#19 | 2016-11-10
US20160329210A1
Electricity

Method for improving CD micro-loading in photomask plasma etching

#20 | 2016-10-27
US20160315009A1
Electricity

UV-cure pre-treatment of carrier film for wafer dicing using hybrid laser scribing and plasma etch approach

#21 | 2016-07-07
US20160197015A1
Electricity

HYBRID WAFER DICING APPROACH USING A POLYGON SCANNING-BASED LASER SCRIBING PROCESS AND PLASMA ETCH PROCESS

#22 | 2016-06-23
US20160181067A1
Electricity

DYNAMIC ION RADICAL SIEVE AND ION RADICAL APERTURE FOR AN INDUCTIVELY COUPLED PLASMA (ICP) REACTOR

#23 | 2016-05-31
US14589918
Electricity

Hybrid wafer dicing approach using a line shaped laser beam profile laser scribing process and plasma etch process

#24 | 2016-05-19
US20160141210A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#25 | 2016-05-12
US20160133519A1
Electricity

Transfer arm for film frame substrate handling during plasma singulation of wafers

#26 | 2016-05-03
US14589823
Electricity

Hybrid wafer dicing approach using a galvo scanner and linear stage hybrid motion laser scribing process and plasma etch process

#27 | 2016-03-24
US20160086852A1
Electricity

Proximity contact cover ring for plasma dicing

#28 | 2016-03-24
US20160086851A1
Electricity

Hybrid wafer dicing approach using an adaptive optics-controlled laser scribing process and plasma etch process

#29 | 2016-03-03
US20160064197A1
Electricity

Methods and apparatus for controlling photoresist line width roughness with enhanced electron spin control

#30 | 2016-02-18
US20160049313A1
Electricity

Method of outgassing a mask material deposited over a workpiece in a process tool

#31 | 2016-02-11
US20160042917A1
Electricity

Plasma reactor having an array of plural individually controlled gas injectors arranged along a circular side wall

#32 | 2016-02-04
US20160035577A1
Electricity

Multi-layer mask including non-photodefinable laser energy absorbing layer for substrate dicing by laser and plasma etch

#33 | 2016-01-28
US20160027697A1
Electricity

Hybrid wafer dicing approach using a rectangular shaped two-dimensional top hat laser beam profile or a linear shaped one-dimensional top hat laser beam profile laser scribing process and plasma etch process

#34 | 2016-01-26
US14517287
Electricity

Hybrid wafer dicing approach using a bessel beam shaper laser scribing process and plasma etch process

#35 | 2015-11-24
US14497027
Electricity

Hybrid wafer dicing approach using a phase modulated laser beam profile laser scribing process and plasma etch process

#36 | 2015-11-19
US20150332970A1
Electricity

CARRIER WITH THERMALLY RESISTANT FILM FRAME FOR SUPPORTING WAFER DURING SINGULATION

#37 | 2015-11-03
US14491728
Electricity

Hybrid wafer dicing approach using laser scribing process based on an elliptical laser beam profile or a spatio-temporal controlled laser beam profile

#38 | 2015-10-29
US20150311118A1
Electricity

Dicing tape protection for wafer dicing using laser scribe process

#39 | 2015-10-29
US20150311107A1
Electricity

Wafer edge warp suppression for thin wafer supported by tape frame

#40 | 2015-10-22
US20150303111A1
Electricity

Dicing wafers having solder bumps on wafer backside

#41 | 2015-10-20
US14320419
Electricity

Method of die singulation using laser ablation and induction of internal defects with a laser

#42 | 2015-10-15
US20150294892A1
Electricity

Water soluble mask formation by dry film lamination

#43 | 2015-10-13
US14589913
Electricity

Vacuum lamination of polymeric dry films for wafer dicing using hybrid laser scribing and plasma etch approach

#44 | 2015-10-08
US20150287638A1
Electricity

HYBRID WAFER DICING APPROACH USING COLLIMATED LASER SCRIBING PROCESS AND PLASMA ETCH

#45 | 2015-10-01
US20150279739A1
Electricity

Dicing processes for thin wafers with bumps on wafer backside

#46 | 2015-09-22
US14320426
Electricity

Wafer dicing using hybrid laser scribing and plasma etch approach with mask application by vacuum lamination

#47 | 2015-09-10
US20150255349A1
Electricity

APPROACHES FOR CLEANING A WAFER DURING HYBRID LASER SCRIBING AND PLASMA ETCHING WAFER DICING PROCESSES

#48 | 2015-09-10
US20150255346A1
Electricity

Baking tool for improved wafer coating process

#49 | 2015-09-08
US14506455
Electricity

Bi-layer wafer-level underfill mask for wafer dicing and approaches for performing wafer dicing

#50 | 2015-09-08
US14320405
Electricity

Hybrid dicing process using a blade and laser

#51 | 2015-08-27
US20150243559A1
Electricity

HYBRID WAFER DICING APPROACH USING TEMPORALLY-CONTROLLED LASER SCRIBING PROCESS AND PLASMA ETCH

#52 | 2015-08-18
US14276683
Electricity

Dicing tape thermal management by wafer frame support ring cooling during plasma dicing

#53 | 2015-08-06
US20150221505A1
Electricity

Wafer coating

#54 | 2015-07-30
US20150214111A1
Electricity

Water soluble mask formation by dry film vacuum lamination for laser and plasma dicing

#55 | 2015-07-30
US20150214109A1
Electricity

Method of wafer dicing using hybrid laser scribing and plasma etch approach with mask plasma treatment for improved mask etch resistance

#56 | 2015-07-28
US14320390
Electricity

Singulation of wafers having wafer-level underfill

#57 | 2015-07-16
US20150200119A1
Electricity

LASER SCRIBING AND PLASMA ETCH FOR HIGH DIE BREAK STRENGTH AND CLEAN SIDEWALL

#58 | 2015-07-07
US14248165
Electricity

Residue removal from singulated die sidewall

#59 | 2015-06-11
US20150162244A1
Electricity

Method and carrier for dicing a wafer

#60 | 2015-06-11
US20150162243A1
Electricity

Screen print mask for laser scribe and plasma etch wafer dicing process

#61 | 2015-05-07
US20150122419A1
Electricity

LASER AND PLASMA ETCH WAFER DICING WITH A DOUBLE SIDED UV-CURABLE ADHESIVE FILM

#62 | 2015-04-28
US14167318
Electricity

Wafer dicing using hybrid laser scribing and plasma etch approach with intermediate reactive post mask-opening clean

#63 | 2015-04-23
US20150111364A1
Electricity

Maskless hybrid laser scribing and plasma etching wafer dicing process

#64 | 2015-04-23
US20150111363A1
Electricity

Maskless hybrid laser scribing and plasma etching wafer dicing process

#65 | 2015-04-21
US14167347
Electricity

Wafer dicing using hybrid laser scribing and plasma etch approach with intermediate non-reactive post mask-opening clean

#66 | 2015-04-16
US20150104929A1
Electricity

Method and apparatus for dicing wafers having thick passivation polymer layer

#67 | 2015-04-16
US20150102467A1
Electricity

METHOD OF DICED WAFER TRANSPORTATION

#68 | 2015-04-07
US14256429
Electricity

Pre-patterned dry laminate mask for wafer dicing processes

#69 | 2015-04-02
US20150090401A1
Electricity

Electrodes for etch

#70 | 2015-03-31
US14169502
Electricity

Wafer coating

#71 | 2015-03-19
US20150079761A1
Electricity

Wafer dicing from wafer backside and front side

#72 | 2015-03-19
US20150079760A1
Electricity

ALTERNATING MASKING AND LASER SCRIBING APPROACH FOR WAFER DICING USING LASER SCRIBING AND PLASMA ETCH

#73 | 2015-03-17
US14272111
Electricity

Substrate patterning using hybrid laser scribing and plasma etching processing schemes

#74 | 2015-03-10
US14249891
Electricity

Laser-dominated laser scribing and plasma etch hybrid wafer dicing

#75 | 2015-03-05
US20150064878A1
Electricity

Wafer dicing method for improving die packaging quality

#76 | 2015-02-05
US20150037915A1
Electricity

METHOD AND SYSTEM FOR LASER FOCUS PLANE DETERMINATION IN A LASER SCRIBING PROCESS

#77 | 2015-01-29
US20150028446A1
Electricity

WAFER DICING WITH WIDE KERF BY LASER SCRIBING AND PLASMA ETCHING HYBRID APPROACH

#78 | 2015-01-13
US14252597
Electricity

Water soluble mask formation by dry film lamination

#79 | 2015-01-08
US20150011073A1
Electricity

LASER SCRIBING AND PLASMA ETCH FOR HIGH DIE BREAK STRENGTH AND SMOOTH SIDEWALL

#80 | 2015-01-06
US14167548
Electricity

Water soluble mask formation by dry film vacuum lamination for laser and plasma dicing

#81 | 2014-12-25
US20140377937A1
Electricity

Method of coating water soluble mask for laser scribing and plasma etch

#82 | 2014-12-18
US20140370709A1
Electricity

Methods for reducing line width roughness and/or critical dimension nonuniformity in a patterned photoresist layer

#83 | 2014-12-18
US20140370708A1
Electricity

Photoresist treatment method by low bombardment plasma

#84 | 2014-12-18
US20140367041A1
Electricity

Wafer dicing using femtosecond-based laser and plasma etch

#85 | 2014-12-16
US14265108
Electricity

Wafer edge warp supression for thin wafer supported by tape frame

#86 | 2014-12-16
US14254632
Electricity

Dicing wafers having solder bumps on wafer backside

#87 | 2014-12-11
US20140363952A1
Electricity

LASER, PLASMA ETCH, AND BACKSIDE GRIND PROCESS FOR WAFER DICING

#88 | 2014-12-04
US20140356768A1
Physics

CHARGED BEAM PLASMA APPARATUS FOR PHOTOMASK MANUFACTURE APPLICATIONS

#89 | 2014-11-27
US20140346641A1
Electricity

Wafer dicing with wide kerf by laser scribing and plasma etching hybrid approach

#90 | 2014-11-13
US20140335679A1
Electricity

METHODS FOR ETCHING A SUBSTRATE

#91 | 2014-11-11
US14455506
Electricity

Approaches for cleaning a wafer during hybrid laser scribing and plasma etching wafer dicing processes

#92 | 2014-09-18
US20140273490A1
Electricity

Method for improving CD micro-loading in photomask plasma etching

#93 | 2014-09-18
US20140273401A1
Electricity

SUBSTRATE LASER DICING MASK INCLUDING LASER ENERGY ABSORBING WATER-SOLUBLE FILM

#94 | 2014-09-11
US20140256148A1
Electricity

Method and apparatus for high efficiency gas dissociation in inductive coupled plasma reactor

#95 | 2014-09-11
US20140255830A1
Physics

Apparatus and methods for fabricating a photomask substrate for EUV applications

#96 | 2014-09-11
US20140253887A1
Physics

CONTAMINATION PREVENTION FOR PHOTOMASK IN EXTREME ULTRAVIOLET LITHOGRAPHY APPLICATION

#97 | 2014-07-31
US20140213042A1
Electricity

Substrate dicing by laser ablation and plasma etch damage removal for ultra-thin wafers

#98 | 2014-07-31
US20140213041A1
Electricity

Wafer dicing with etch chamber shield ring for film frame wafer applications

#99 | 2014-07-10
US20140190632A1
Electricity

METHOD AND APPARATUS FOR PHOTOMASK PLASMA ETCHING

#100 | 2014-06-26
US20140179084A1
Electricity

Wafer dicing from wafer backside

InventorID:

12501 ⎘