USRE30186E - Method for the preparation of relief structures - Google Patents
Method for the preparation of relief structures Download PDFInfo
- Publication number
- USRE30186E USRE30186E US05/972,432 US97243278A USRE30186E US RE30186 E USRE30186 E US RE30186E US 97243278 A US97243278 A US 97243278A US RE30186 E USRE30186 E US RE30186E
- Authority
- US
- United States
- Prior art keywords
- prepolymer
- radiation
- group
- soluble
- sensitive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 3
- -1 oxyalkylene methacrylate Chemical compound 0.000 claims abstract description 3
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 3
- 125000004185 ester group Chemical group 0.000 claims abstract 3
- 239000011888 foil Substances 0.000 claims description 6
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 claims description 4
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims description 2
- 125000002837 carbocyclic group Chemical group 0.000 claims description 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 3
- 150000001805 chlorine compounds Chemical class 0.000 abstract description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 abstract description 3
- 238000007259 addition reaction Methods 0.000 abstract description 2
- 150000001717 carbocyclic compounds Chemical class 0.000 abstract description 2
- 238000006482 condensation reaction Methods 0.000 abstract description 2
- 150000004985 diamines Chemical class 0.000 abstract description 2
- 125000005442 diisocyanate group Chemical group 0.000 abstract description 2
- 150000002391 heterocyclic compounds Chemical class 0.000 abstract description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- RPDJEKMSFIRVII-UHFFFAOYSA-N oxomethylidenehydrazine Chemical compound NN=C=O RPDJEKMSFIRVII-UHFFFAOYSA-N 0.000 abstract description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract 1
- 150000001735 carboxylic acids Chemical class 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 7
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 150000003949 imides Chemical group 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NLGDWWCZQDIASO-UHFFFAOYSA-N 2-hydroxy-1-(7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-yl)-2-phenylethanone Chemical compound OC(C(=O)c1cccc2Oc12)c1ccccc1 NLGDWWCZQDIASO-UHFFFAOYSA-N 0.000 description 1
- YTPSFXZMJKMUJE-UHFFFAOYSA-N 2-tert-butylanthracene-9,10-dione Chemical compound C1=CC=C2C(=O)C3=CC(C(C)(C)C)=CC=C3C(=O)C2=C1 YTPSFXZMJKMUJE-UHFFFAOYSA-N 0.000 description 1
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- 229940076442 9,10-anthraquinone Drugs 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 101150108015 STR6 gene Proteins 0.000 description 1
- 101100386054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CYS3 gene Proteins 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005036 alkoxyphenyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical group C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229940113088 dimethylacetamide Drugs 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 125000005702 oxyalkylene group Chemical group 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 101150035983 str1 gene Proteins 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0388—Macromolecular compounds which are rendered insoluble or differentially wettable with ethylenic or acetylenic bands in the side chains of the photopolymer
Definitions
- the polyfunctional compounds containing radiation-sensitive radicals R* contain two carboxyl, carboxylic acid chloride, amino, isocyanate or hydroxyl groups suitable for addition or condensation reactions and, partly in ortho or peri position thereto, radiation-reactive groups, bound to carboxyl groups, as esters having the following structure:
- the diamines, diisocyanates, bis-acid chlorides or dicarboxylic acids to be reacted with these compounds contain at least one cyclic structure element.
- the preparation of the soluble preliminary polymers can be carried out as a "one-pot” reaction if hexamethyl phosphoric acid triamide is used as the solvent.
- photo initiators and/or sensitizers can be employed, of. Industrie Chimique Belge, vol. 24, pages 739 to 64 (1959) or Light-Sensitive Systems by J. Kosar, John Wiley & Sons Inc., New York, New York 1965, pages 143 to 46 and 160 to 88.
- Highly suited sensitizers and/or initiators are, for instance, Michler's ketone and/or benzoin ether, 2-tert-butyl-9,10-anthraquinone, 1,2-benz-9,10-anthraquinone, 4,4'-(diethylamino)-benzophenone.
- the soluble preliminary polymer stages can be combined for this purpose with further radiation-sensitive, copolymerizable compounds.
- Well suited are, for instance, compounds which contain one or several N-substituted maleimide groups.
- relief structures with sharp edges of highly heat-resistant polymers can be prepared, utilizing the increased light sensitivity of the readily available soluble preliminary polymers. It is particularly suitable for the preparation of miniaturized circuits and of protective layers for semiconductor components, also for solder protection layers on multi-layer circuits, as miniaturized insulating layers on electrically conducting and/or semiconducting and/or insulating base materials and for layered circuits, as insulating layers for printed circuits with conductors made by electroplating, as image storage devices that can be read out optically and for printing forms.
- the soluble preliminary polymer stage was precipitated by adding the solution dropwise to 2000 parts by volume water and washed with water and ethanol.
- the resolution and the edge definition remained unchanged and the relief structures then exhibited the excellent thermal, mechanical, electrical and chemical properties of the polyimide polydiphenyl methane pyromelliticimide.
- the IR spectrum of the annealed samples showed the bands at 5.6 ⁇ m typical for the imide structure.
- the resolution and the edge definition remained unchanged and the relief structures then exhibited the excellent thermal, mechanical, electrical and chemical properties of the polyimide polydiphenyl oxide pyromelliticimide.
- the IR spectrum of the annealed samples showed the bands at 5.6 ⁇ m typical for the imide structure.
Abstract
The invention provides a method for the preparation of relief structures of highly heat-resistant polymers, using radiation-sensitive, soluble preliminary polymers in the form of polyaddition or polycondensation products of polyfunctional carbocyclic or heterocyclic compounds containing radiation-sensitive radicals in ester groups bound to said compounds with diamines, diisocyanates, bis-acid chlorides or dicarboxylic acids of cyclic structure. According to the invention, the polyfunctional compounds containing the radiation-sensitive radicals contain, besides carboxyl, carboxylic acid chloride, amino, isocyanate or hydroxyl groups suitable for addition or condensation reactions, partly in ortho or periposition thereto, radiation-reactive radicals in the ester groups bound to the compounds having an oxyalkylene methacrylate or acrylate structure.
Description
This invention concerns an improvement and further development of the method according to the U.S. Pat. Application Ser. No. 444,552, now U.S. Pat. No. 3,957,512, herein incorporated by reference, for the preparation of relief structures of highly heat-resistant polymers by applying radiation-sensitive, soluble preliminary polymers to a substrate in the form of a layer or a foil; irradiating the radiation-sensitive layer or foil through negative patterns; dissolving or removing the nonirradiated layer or foil parts and, optionally, subsequently annealing the relief structures obtained, using polyaddition or polycondensation products of polyfunctional carbocyclic or heterocyclic compounds containing radiation-sensitive radicals, with diamines diisocyanates, bis-acid chlorides or dicarboxylic acids as the soluble preliminary polymers wherein:
a. the polyfunctional compounds containing radiation-sensitive radicals R* contain two carboxyl, carboxylic acid chloride, amino, isocyanate or hydroxyl groups suitable for addition or condensation reactions and, partly in ortho or peri position thereto, radiation-reactive groups, bound to carboxyl groups, as esters having the following structure:
______________________________________ ##STR1## R=oxyalkylene ##STR2## R.sub.1 =alkyl,phenyl, alkoxyphenyl or halogenphenyl ##STR3## R.sub.2 =H,Cl,alkyl or alkoxy R.sub.3 =carbocyclic or heterocyclic, aromatic nucleus bound via ring carbon atom ##STR4## ##STR5## ##STR6## ##STR7##
and wherein;
b. the diamines, diisocyanates, bis-acid chlorides or dicarboxylic acids to be reacted with these compounds contain at least one cyclic structure element.
It has now been found that one can obtain more than radiation-sensitive soluble preliminary polymers which require substantially shorter exposure times, if in the preparation of relief structures according to the U.S. Pat. Application Ser. No. 444,552, now U.S. Pat. No. 3,957,512, oxyalkylenemethacrylate and -acrylate groups of the following structure: ##STR8## wherein R is hydrogen or methyl and R' is an alkylene group, are used in place of the radiation-reactive groups as shown in (a) above.
The preparation of the soluble preliminary polymers can be carried out as a "one-pot" reaction if hexamethyl phosphoric acid triamide is used as the solvent.
To increase the cross-linking speed, commonly used photo initiators and/or sensitizers can be employed, of. Industrie Chimique Belge, vol. 24, pages 739 to 64 (1959) or Light-Sensitive Systems by J. Kosar, John Wiley & Sons Inc., New York, New York 1965, pages 143 to 46 and 160 to 88. Highly suited sensitizers and/or initiators are, for instance, Michler's ketone and/or benzoin ether, 2-tert-butyl-9,10-anthraquinone, 1,2-benz-9,10-anthraquinone, 4,4'-(diethylamino)-benzophenone.
In addition, the soluble preliminary polymer stages can be combined for this purpose with further radiation-sensitive, copolymerizable compounds. Well suited are, for instance, compounds which contain one or several N-substituted maleimide groups.
With the method of the present invention, relief structures with sharp edges of highly heat-resistant polymers can be prepared, utilizing the increased light sensitivity of the readily available soluble preliminary polymers. It is particularly suitable for the preparation of miniaturized circuits and of protective layers for semiconductor components, also for solder protection layers on multi-layer circuits, as miniaturized insulating layers on electrically conducting and/or semiconducting and/or insulating base materials and for layered circuits, as insulating layers for printed circuits with conductors made by electroplating, as image storage devices that can be read out optically and for printing forms.
The invention will be explained in further detail by the following examples.
EXAMPLE 1 - Preparation of the Soluble Preliminary Polymer Stage
Exactly 21.8 parts by weight pyromellitic acid diandydride were dissolved in 100 parts by volume hexamethyl phosphoric acid triamide, reacted dropwise, while being cooled in ice and stirred, with 26 parts by weight methacrylic acid-2-hydroxyethyl ester and then stirred at room temperature for 4 days. The solution was subsequently reacted dropwise at -5° to -10° C. with 24 parts by weight thionyl chloride and stirring was continued for 1 hour. Then a solution of 19.8 parts by weight 4,4'-diamino diphenyl methane in 50 parts by volume dimethyl acetamide was added dropwise, and stirring was continued, the last part without cooling, for one hour.
The soluble preliminary polymer stage was precipitated by adding the solution dropwise to 2000 parts by volume water and washed with water and ethanol.
About 5 parts by weight of the preliminary polymer stage and 0.1 part by weight Michler's ketone were dissolved in 20 parts by volume dimethyl formamide. Then the solution was filtered and centrifuged on aluminum foil to form uniform films which, after evaporation of the solvent, were 3 μm thick. The films were irradiated with a 500-W very-high-pressure mercury lamp at a distance of 23 cm through a contact pattern for 2 min, immersed for 30 seconds in γ-butyrolactone and washed with toluol. A resolution better than 20 μm was achieved with good edge definition. The samples obtained were annealed for 20 minutes at 300° C. In the process, the resolution and the edge definition remained unchanged and the relief structures then exhibited the excellent thermal, mechanical, electrical and chemical properties of the polyimide polydiphenyl methane pyromelliticimide. The IR spectrum of the annealed samples showed the bands at 5.6 μm typical for the imide structure.
Instead of 4,4'-diamino diphenyl, 4,4'-diaminophenyl ether was used, otherwise the procedure was as in Example 1.
Five parts by weight of the preliminary polymer stage, 0.5 parts by weight N-phenyl maleimide and 0.05 parts by weight Michler's ketone were dissolved in 20 parts by volume dimethyl formamide, filtered and centrifuged on aluminum foil to form uniform films, which, after evaporation of the solvent, were 2 μm thick. The films were irradiated, as described in Example 1, for 60 sec, developed for 30 sec in γ-butyrolactone and washed with toluol. A resolution better than 20 μm was achieved with good edge definition. The samples obtained were annealed for 20 min at 300° C. In the process, the resolution and the edge definition remained unchanged and the relief structures then exhibited the excellent thermal, mechanical, electrical and chemical properties of the polyimide polydiphenyl oxide pyromelliticimide. The IR spectrum of the annealed samples showed the bands at 5.6 μm typical for the imide structure.
Claims (7)
1. In a method for the preparation of relief structures consisting of highly heat resistant polymers comprising the steps of applying a soluble, photo or radiation-sensitive prepolymer in the form of a film or foil to a substrate, said prepolymer being a poly-addition or polycondensation prepolymer having repeating units of the formula: ##STR9## wherein, X and D each comprise a carbocyclic and/or heterocyclic nucleus;
G is selected from the group consisting of amide, urea or urethane linkages;
R* is an organic radical containing a photo- or radiation induced di- or polymerizable olefinic double bond; and is a component of ester group .[.CO2 R*.]. .Iadd.COR* .Iaddend.said group bound to said nucleus in ortho or peri-position to G;
F is a group capable of reacting with the carbonyl group of .[.CO2 R*.]. .Iadd.COR* .Iaddend.to form a cyclic structure upon heating of the prepolymer to liberate R*OH; and wherein F is arranged in ortho- or peri-position to G;
x is 1 or 2; and
y is 0 or 2;
exposing or irradiating the photo or radiation active layer through a negative pattern, dissolving or stripping the unexposed or unirradiated portions and annealing the relief structure obtained; the improvement which comprises using as said R*, a radical represented by the formula: ##STR10## wherein R is hydrogen or methyl and R' is an alkylene group.
2. The method of claim 8, wherein the radiation-reactive radical R* is a β-oxyethylenemethacrylate radical.
3. The method of claim 1 wherein the soluble prepolymer is irradiated together with compounds which contain one or several N-substituted maleimide groups.
4. The method claim 3 wherein the soluble prepolymer is irradiated together with N-phenyl maleimide.
5. Method of claim 4, wherein the N-phenyl maleimide content is less than 20 percent by weight of the prepolymer.
6. The method of claim 5 wherein the N-phenyl maleimide content is between about 2 and 10 percent by weight of said prepolymer.
7. The method of claim 1 wherein the prepolymer is prepared in hexamethyl phosphoric acid triamide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/972,432 USRE30186E (en) | 1974-08-02 | 1978-12-22 | Method for the preparation of relief structures |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742437348 DE2437348B2 (en) | 1974-08-02 | 1974-08-02 | PROCESS FOR THE PRODUCTION OF RELIEF STRUCTURES |
DE2437348 | 1974-08-02 | ||
US05/598,829 US4040831A (en) | 1974-08-02 | 1975-07-24 | Method for the preparation of relief structures |
US05/972,432 USRE30186E (en) | 1974-08-02 | 1978-12-22 | Method for the preparation of relief structures |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/598,829 Reissue US4040831A (en) | 1974-08-02 | 1975-07-24 | Method for the preparation of relief structures |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE30186E true USRE30186E (en) | 1980-01-08 |
Family
ID=27186042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/972,432 Expired - Lifetime USRE30186E (en) | 1974-08-02 | 1978-12-22 | Method for the preparation of relief structures |
Country Status (1)
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US (1) | USRE30186E (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4283480A (en) | 1978-10-03 | 1981-08-11 | Diamond Shamrock Industrial Chemicals Limited | Photopolymerizable compositions, methods for their preparation, and methods for their use in coating substrates |
US4515887A (en) | 1983-08-29 | 1985-05-07 | General Electric Company | Photopatternable dielectric compositions, method for making and use |
EP0203372A2 (en) * | 1985-04-26 | 1986-12-03 | E.I. Du Pont De Nemours And Company | Process for making photopolymerizable aromatic polyamic acid derivatives |
US4757098A (en) | 1985-04-17 | 1988-07-12 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Stabilized solutions of radiation-crosslinkable polymer precursors of highly heat-resistant polymers |
US5077378A (en) * | 1986-10-02 | 1991-12-31 | Hoechst Celanese Corporation | Polyamide containing the hexafluoroisopropylidene group |
US5270431A (en) * | 1987-07-23 | 1993-12-14 | Basf Aktiengesellschaft | Preparation of oligomeric or polymeric radiation-reactive intermediates for solvent-structured layers |
US5777068A (en) * | 1994-09-13 | 1998-07-07 | Nippon Zeon Co., Ltd. | Photosensitive polyimide resin composition |
US5886136A (en) * | 1995-09-12 | 1999-03-23 | Nippon Zeon Co., Ltd. | Pattern forming process |
US6160081A (en) | 1997-10-31 | 2000-12-12 | Nippon Zeon Co., Ltd. | Photosensitive polyimide resin composition |
US6310135B1 (en) | 1995-04-18 | 2001-10-30 | Nippon Zeon Co., Ltd. | Polyimide resin composition |
US20100092879A1 (en) * | 2007-03-12 | 2010-04-15 | Hitachi Chemical Dupont Microsystems, Ltd. | Photosensitive resin composition, process for producing patterned hardened film with use thereof and electronic part |
US20100159217A1 (en) * | 2006-06-20 | 2010-06-24 | Hitachi Chemical Dupont Microsystems, Ltd | Negative-type photosensitive resin composition, method for forming patterns, and electronic parts |
US20100258336A1 (en) * | 2007-10-29 | 2010-10-14 | Hitachi Chemical Dupont Microsystems, Ltd. | Positive photosensitive resin composition, method for forming pattern, electronic component |
US20110171436A1 (en) * | 2005-09-22 | 2011-07-14 | Hitachi Chemical Dupont Microsystems, Ltd. | Negative-type photosensitive resin composition, pattern forming method and electronic parts |
US11294281B2 (en) | 2019-06-28 | 2022-04-05 | Hutchinson Technology Incorporated | Chain extenders and formulations thereof for improving elongation in photosensitive polyimide |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475176A (en) * | 1966-09-06 | 1969-10-28 | Eastman Kodak Co | Azide sensitized photosensitive prepolymer compositions |
US3650746A (en) * | 1969-06-16 | 1972-03-21 | Grace W R & Co | Dual image formation on separate supports of photocurable composition |
US3753720A (en) * | 1972-01-10 | 1973-08-21 | Grace W R & Co | Solder resistant photopolymer compositions |
US3801638A (en) * | 1971-03-12 | 1974-04-02 | Gaf Corp | Triacrylyldiethylenetriamine,method of producing the same,and photopolymerization process and system utilizing the same |
US3847767A (en) * | 1973-03-13 | 1974-11-12 | Grace W R & Co | Method of producing a screen printable photocurable solder resist |
US3858510A (en) * | 1971-03-11 | 1975-01-07 | Asahi Chemical Ind | Relief structures prepared from photosensitive compositions |
US3957512A (en) * | 1973-02-22 | 1976-05-18 | Siemens Aktiengesellschaft | Method for the preparation of relief structures |
-
1978
- 1978-12-22 US US05/972,432 patent/USRE30186E/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US3475176A (en) * | 1966-09-06 | 1969-10-28 | Eastman Kodak Co | Azide sensitized photosensitive prepolymer compositions |
US3650746A (en) * | 1969-06-16 | 1972-03-21 | Grace W R & Co | Dual image formation on separate supports of photocurable composition |
US3858510A (en) * | 1971-03-11 | 1975-01-07 | Asahi Chemical Ind | Relief structures prepared from photosensitive compositions |
US3801638A (en) * | 1971-03-12 | 1974-04-02 | Gaf Corp | Triacrylyldiethylenetriamine,method of producing the same,and photopolymerization process and system utilizing the same |
US3753720A (en) * | 1972-01-10 | 1973-08-21 | Grace W R & Co | Solder resistant photopolymer compositions |
US3957512A (en) * | 1973-02-22 | 1976-05-18 | Siemens Aktiengesellschaft | Method for the preparation of relief structures |
US3847767A (en) * | 1973-03-13 | 1974-11-12 | Grace W R & Co | Method of producing a screen printable photocurable solder resist |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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