KR100565418B1 - Cmp용 실리카 슬러리의 제조방법 - Google Patents
Cmp용 실리카 슬러리의 제조방법 Download PDFInfo
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- KR100565418B1 KR100565418B1 KR1019990056615A KR19990056615A KR100565418B1 KR 100565418 B1 KR100565418 B1 KR 100565418B1 KR 1019990056615 A KR1019990056615 A KR 1019990056615A KR 19990056615 A KR19990056615 A KR 19990056615A KR 100565418 B1 KR100565418 B1 KR 100565418B1
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- Prior art keywords
- silica
- dispersion
- cmp
- silica slurry
- slurry
- Prior art date
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims description 36
- 238000005498 polishing Methods 0.000 title abstract description 22
- 239000007822 coupling agent Substances 0.000 claims abstract description 30
- 239000006185 dispersion Substances 0.000 claims abstract description 30
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000004048 modification Effects 0.000 claims abstract description 10
- 238000012986 modification Methods 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 10
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000005051 trimethylchlorosilane Substances 0.000 claims description 4
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 13
- 239000004065 semiconductor Substances 0.000 abstract description 11
- 238000003860 storage Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- -1 High Pressure Pumps Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 abstract 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 33
- 230000008569 process Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 9
- 125000005372 silanol group Chemical group 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 230000000704 physical effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910010082 LiAlH Inorganic materials 0.000 description 1
- 229910008051 Si-OH Inorganic materials 0.000 description 1
- 229910006358 Si—OH Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001266 acyl halides Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N methyl acetate Chemical compound COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
커플링제 | 1um 입자(수) | μ-스크래치(수) | |||||
30일후 | 60일후 | 180일후 | 30일후 | 60일후 | 180일후 | ||
실시예1 | IPA | 1,220 | 1,235 | 1,390 | 0 | 0 | 0 |
실시예2 | AcOMe | 2,460 | 2,500 | 3,225 | 0 | 0 | 1 |
실시예3 | PhNCO | 1,730 | 1,750 | 2,150 | 0 | 1 | 1 |
실시예4 | 헥사메틸 디실라잔 | 2,210 | 2,560 | 2,790 | 0 | 2 | 2 |
비교예1 | 미첨가 | 1,550 | 8,580 | 39,450 | 0 | 21 | 135 |
Claims (8)
- 실리카와 탈이온수를 프리믹싱한 후, 혼합된 수용액상의 실리카 슬러리를 고압분산시켜 CMP용 실리카 슬러리를 제조함에 있어서, 프리믹싱 단계에서 실리카 혼합물에 탄소수 1 내지 20의 유기산 및 그 유도체, 탄소수 1 내지 20의 이소시아네이트, 트리메틸클로로실란, 헥사메틸디실라잔으로 구성되는 그룹으로부터 선택되는 적어도 1종류 이상의 커플링제를 첨가한 후 분산시킴으로써 분산 및 표면 개질을 동시에 수행하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
- 삭제
- 제 1항에 있어서, 상기 커플링제를 실리카 슬러리 전량에 대해 O.O1~ 20wt% 사용하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
- 제 1항에 있어서, 상기 방법이 실리카 슬러리에 산 또는 염기를 첨가하여 산 또는 염기를 포함한 상태에서 분산 및 커플링 반응을 진행시키는 단계를 추가로 포함하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
- 제 1항에 있어서, 상기 실리카로 표면적이 2O 내지 3O00㎡/g 범위의 발연 실 리카를 사용하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
- 제 1항에 있어서, 고압에 의한 분산장치로 고압펌프를 2대 또는 그 이상 사용하는 과정을 포함하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
- 제 1항에 있어서, 고압분산 단계에서 분산 및 표면개질을 위한 압력이 200기압 이상이 되도록 하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
- 제 1항에 있어서, 고압분산장치의 분산쳄버를 단독 또는 2개 이상의 동일 또는 다른 유형의 오리피스가 내장된 쳄버를 연결하여 사용하는 것을 특징으로 하는 CMP용 실리카 슬러리의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990056615A KR100565418B1 (ko) | 1999-12-10 | 1999-12-10 | Cmp용 실리카 슬러리의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990056615A KR100565418B1 (ko) | 1999-12-10 | 1999-12-10 | Cmp용 실리카 슬러리의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010055411A KR20010055411A (ko) | 2001-07-04 |
KR100565418B1 true KR100565418B1 (ko) | 2006-03-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019990056615A KR100565418B1 (ko) | 1999-12-10 | 1999-12-10 | Cmp용 실리카 슬러리의 제조방법 |
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KR (1) | KR100565418B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101566068B1 (ko) | 2013-02-13 | 2015-11-04 | 제일모직주식회사 | Cmp 슬러리 조성물 및 이를 이용한 연마 방법 |
US10047248B2 (en) | 2015-10-15 | 2018-08-14 | Samsung Electronics Co., Ltd. | Slurry composition for chemical mechanical polishing, method of preparing the same, and polishing method using the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5614444A (en) * | 1995-06-06 | 1997-03-25 | Sematech, Inc. | Method of using additives with silica-based slurries to enhance selectivity in metal CMP |
JPH09193004A (ja) * | 1995-11-10 | 1997-07-29 | Tokuyama Corp | 研磨剤 |
KR20000033394A (ko) * | 1998-11-23 | 2000-06-15 | 윤종용 | Cmp용 연마제 와 그 제조방법 |
-
1999
- 1999-12-10 KR KR1019990056615A patent/KR100565418B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5614444A (en) * | 1995-06-06 | 1997-03-25 | Sematech, Inc. | Method of using additives with silica-based slurries to enhance selectivity in metal CMP |
JPH09193004A (ja) * | 1995-11-10 | 1997-07-29 | Tokuyama Corp | 研磨剤 |
KR20000033394A (ko) * | 1998-11-23 | 2000-06-15 | 윤종용 | Cmp용 연마제 와 그 제조방법 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101566068B1 (ko) | 2013-02-13 | 2015-11-04 | 제일모직주식회사 | Cmp 슬러리 조성물 및 이를 이용한 연마 방법 |
US10047248B2 (en) | 2015-10-15 | 2018-08-14 | Samsung Electronics Co., Ltd. | Slurry composition for chemical mechanical polishing, method of preparing the same, and polishing method using the same |
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Publication number | Publication date |
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KR20010055411A (ko) | 2001-07-04 |
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