LT4713B - Process for obtaining electrical conductive coating on dielectric surface - Google Patents
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Abstract
Description
Išradimo objektas yra skirtas dielektrikų paviršių savybėms modifikuoti, t.y., šio išradimo dėka dielektrikų paviršius tampa laidus elektros srovei.The object of the invention is to modify the properties of dielectric surfaces, i.e., the present invention makes the surface of the dielectric electrically conductive.
Išradimas gali būti panaudotas įvairiose pramonės srityse paruošti dielektrikų paviršius galvaninei metalizacijai, ypač nikeliavimui.The invention can be used in various fields of industry for the preparation of dielectric surfaces for electroplating, in particular nickel plating.
Yra žinomas elektrai laidžių dangų ant dielektrikų - plastmasių gavimo būdas (I. Stavnicer ir kt. Kaprono gaminių galvaninė metalizacija “Gamybos technologija ir organizacija”, Kijevas, 1978, Nr. 1, 56-57 psl.), kai dielektriko paviršių apdoroja vario druskos tirpalu, plauna karštu vandeniu, po to apdoroja natrio sulfido tirpalu.There is a known method of obtaining electrically conductive coatings on dielectrics - plastics (I. Stavnicer et al., Galvanization of Capron Products, "Production Technology and Organization," Kiev, 1978, No. 1, pp. 56-57), wherein the dielectric surface is treated with copper salts. solution, wash with hot water, then treat with sodium sulfide solution.
Šiuo metodu kokybiškas elektrai laidžias dangas galima gauti kartojant aukščiau nurodytas operacijas kelis kartus. Tačiau netgi pakartojus operacijas tris kartus, reikia pajungti daug elektrai laidžių kontaktų, kai metalizuojami dideli paviršiai. Kitas šio būdo trūkumas yra tai, kad plovimui naudojamas karštas vanduo.By this method, high-quality electrically conductive coatings can be obtained by repeating the above operations several times. However, even after repeating operations three times, a large number of electrically conductive contacts need to be made when large surfaces are metalized. Another disadvantage of this method is the use of hot water for washing.
Dar yra žinomas elektrai laidžių dangų gavimo būdas (TSRS a.l. Nr. 1343616, kl. B 05 D 5/12,1/38, 1985), kai dielektriko paviršių apdoroja tirpale, kuriame yra 0,4 M CuSCU 0,8 M NH3 ir 0,1 M hidrochinono, po to apdoroja fosforo rūgšties druskos - 0,002 - 0,05 M mono, di arba tri natrio, kalio arba amonio fosfato vandeniniam tirpale, plauna vandeniu ir dar apdoroja 0,005 M natrio polisulfido vandeniniame tirpale.Another method of obtaining electrically conductive coatings (USSR al. 1343616, class B 05 D 5 / 12.1 / 38, 1985) is to treat the surface of a dielectric in a solution containing 0.4 M CuSCU 0.8 M NH 3 and 0.1 M hydroquinone, then treatment with phosphoric acid salts 0.002-0.05 M aqueous solution of mono, di or tri sodium, potassium or ammonium phosphate, washing with water and further treatment with 0.005 M aqueous polysulphide.
Šio techninio sprendimo trūkumas yra per ilga proceso trukmė. Ant šiuo būdu gautos vario sulfido dangos galvaninę dangą galima nusodinti tik tuo atveju, kai minėto proceso operacijos kartojamos ne mažiau kaip tris kartus. Tai prailgina proceso trukmę, padidina neproduktyvų tirpalų išnešimą dengiamuoju paviršiumi ir darbinių tirpalų atskiedimą vandeniu; šio proceso negalima naudoti tipinėse automatinio režimo galvaninėse linijose.The disadvantage of this technical solution is the excessive length of the process. The galvanic coating on the copper sulphide coating thus obtained can be deposited only if the operations of the said process are repeated at least three times. This extends the process time, increases the non-productive application of solutions to the coating surface and dilutes working solutions with water; this process cannot be used on typical automatic mode galvanic lines.
Dar yra žinomas elektrai laidžių vario sulfido dangų gavimo būdas (SU a.l. No.1762425, kl. H 05 K 3/42,3/18,1991), kai gaminius iš dielektriko merkia į vienvalenčio vario druskos tirpalą, po to į - 0,0025-0,025 M kalio persuifato arba jodo, arba kalio nitrito tirpalą, plauna vandeniu, po to merkia į šarminio metalo polisulfidų tirpalą.Another method of preparing electrically conductive copper sulphide coatings (SU al No.1762425, Cl. H 05 K 3 / 42.3 / 18,1991) is by dipping the articles from a dielectric into a solution of a monovalent copper salt, followed by - 0, 0025-0.025 M solution of potassium persulphate or iodine or potassium nitrite is washed with water and then immersed in an alkali metal polysulphide solution.
Procesą atlieka kambario temperatūroje ir visas operacijas kartoja du kartus.Perform the process at room temperature and repeat all operations twice.
Būdo trūkumas - per ilga kokybiškos sulfidinės dangos gavimo trukmė. Be to, šio būdo negalima naudoti tipinėse automatinio režimo galvaninėse linijose.The disadvantage of the process is that it takes too long to obtain a high quality sulphide coating. Also, this method cannot be used on typical auto-mode galvanic lines.
Artimiausias techninis sprendimas pagal esmę yra elektrai laidžių dangų gavimo būdas (TSRS a.l. Nr.980858, kl. B 05 D 5/12,1982), kai dielektriką apdoroja vario amoniakatiniame tirpale, merkia į vandenį, po to į sulfidinimo tirpalą ir nuplauna vandeniu.The closest technical solution is, in essence, a method for preparing electrically conductive coatings (USSR al.l. No. 980858, class B 05 D 5 / 12,1982), by treating the dielectric in a solution of copper ammonia, immersed in water, followed by a sulphidation solution and washed with water.
Šio techninio sprendimo trūkumas: daugkartinis operacijų kartojimas - ne mažiau tris kartus, dėl ko pailgėja proceso trukmė ir sumažėja proceso panaudojimo galimybės.The disadvantage of this technical solution: multiple iterations of operations - not less than three times, which increases the process duration and reduces the process utilization.
Išradimo uždavinys - pagerinti proceso technologiškumą ir gauti kokybiškas elektrai laidžias metalo sulfidines dangas ant dielektrikų paviršiaus per palyginti trumpą laiką, t.y., tik vieną kartą apdorojant gaminius metalo amoniakato ir sulfidinimo tirpale, kas leistų elektrochemiškai metalizuoti dielektrikus tipinėse automatinio režimo galvaninėse linijose.SUMMARY OF THE INVENTION The object of the present invention is to improve process technology and to obtain high-quality electrically conductive metal sulfide coatings on the surface of dielectrics in a relatively short time, i.e., only once treating articles in a metal ammonia and sulfide solution.
Išradimo esmė yra ta, kad gaminius iš dielektriko nuosekliai apdoroja metalo amoniakato tirpale, kuriame yra 0,1-1,0 M CoSO4 ir amonio hidroksido - NH4OH iki pH 9-12, merkia į vandenį, po to apdoroja sulfidinimo tirpale.The essence of the invention is that the dielectric articles are sequentially treated with a solution of metal ammonia in 0.1-1.0 M CoSO 4 and ammonium hydroxide NH 4 OH to pH 9-12 in water and then treated in a sulphidation solution.
Siūlomas būdas, palyginus su žinomais techniniais sprendimais yra technologiškesnis, nes kokybiškos elektrai laidžios dangos susiformuoja nekartojant operacijų kelis kartus, esant kambario temperatūrai. Be to, siūlomą būdą galima naudoti tipinėse automatinio režimo galvaninėse linijose ir standartiniuose įrengimuose.The proposed method is more technological compared to known technical solutions, because high-quality electrically conductive coatings are formed without repeating operations several times at room temperature. In addition, the proposed method can be used in typical automatic mode galvanic lines and standard equipment.
Šiuo būdu gautas metalo sulfidines dangas toliau elektrochemiškai metalizuojant ištisinė galvaninė danga gaunama per palyginus trumpą laiką ir mažesnėmis darbo sąnaudomis.The metal sulphide coatings thus obtained are further electrochemically metallized to form a continuous galvanic coating in a relatively short period of time and with lower labor costs.
Tirpalus pagal siūlomą būdą ruošia distiliuotame vandenyje ištirpinant išradimo esmėje nurodytas medžiagas.The solutions according to the proposed process are prepared by dissolving the substances of the invention in distilled water.
Sulfidinimo tirpalu gali būti natrio, kalio arba amonio mono, di, tri arba tetra sulfidų tirpalai.The sulphidation solution may be sodium, potassium or ammonium mono, di, tri or tetra sulphide solutions.
Gaminius iš dielektriko - ABS plastmasės 1-5 min. ėsdina tirpale, kuriame yra 3,5-4 M H2SO4 ir 3,5-4 M CrO3, esant 60-70 °C temperatūrai ir nuplauna distiliuotu vandeniu.Articles made of dielectric - ABS plastic 1-5 min. corrodes in solution containing 3.5-4 MH 2 SO 4 and 3.5-4 M CrO 3 at 60-70 ° C and rinsed with distilled water.
Gaminius iš dielektriko - smūgiams atsparaus polistireno (SAPS) ėsdina tirpale, kuriame yra 13-15 M H2SO4 ir 0,075-0,1 M CrO3, esant 20-25 °C temperatūrai, nuplauna distiliuotu vandeniu ir dar 20-30 s ėsdina emulsijoje iš ksilolo (0,15-0,2 g/1) ir sintanolo (0,15-0,2 g/1), esant 20-25 °C temperatūrai.Dielectric - Impact Resistant Polystyrene (SAPS) is etched in a solution containing 13-15 MH 2 SO 4 and 0.075-0.1 M CrO 3 at 20-25 ° C, rinsed with distilled water and etched for another 20-30 s in an emulsion of xylene (0.15-0.2 g / l) and sintanol (0.15-0.2 g / l) at 20-25 ° C.
Gaminius po ėsdinimo 20-30 s apdoroja tirpale, kuriame yra 0,1-1,0 M CoSO4 ir amonio hidroksido iki pH 9-12, esant 20-25 °C temperatūrai. Po to gaminius 20-30 s merkia į distiliuotą vandenį ir dar 20-30 s apdoroja tirpale, kuriame yra 0,01-0,1 M natrio, kalio arba amonio mono, di, tri arba tetra sulfidų, esant 20-25 °C temperatūrai.After etching, the products are treated for 20-30 s in a solution containing 0.1-1.0 M CoSO 4 and ammonium hydroxide to pH 9-12 at 20-25 ° C. The products are then immersed in distilled water for 20-30 s and treated for a further 20-30 s in a solution containing 0.01-0.1 M sodium, potassium or ammonium mono, di, tri or tetra sulfide at 20-25 ° C. temperature.
Procesui pasibaigus, gaminius, plauna distiliuotu vandeniu ir 10-15 min. elektrochemiškai nikeliuoja Uotso elektrolite, kuriame yra 1-1,2 M NiSO4 7H2O; 0,15-0,2 M NiCl2 6H2O ir0,4-0,5 M H3BO3; pradinis srovės tankis 0,3 A/dm , kuris sklindant nikelio dangai nuo kontakto didėja iki 3 A/dm2, esant 30-40 °C elektrolito temperatūrai.At the end of the process, the products are washed with distilled water for 10-15 minutes. electrochemically nickelized in the Uotts electrolyte containing 1-1.2 M NiSO 4 7H 2 O; 0.15-0.2 M NiCl 2 6H 2 O and0.4-0.5 MH 3 BO 3 ; an initial current density of 0.3 A / dm, which increases from 3 to 3 A / dm 2 at contact with an electrolyte at 30-40 ° C as the nickel coating spreads.
Elektrai laidžios sulfidinės dangos lygumą vertina iš karto po dangos nusodinimo vizualiai plika akimi dienos šviesoje dviem parametrais: lygi, nelygi.The smoothness of the electrically conductive sulfide coating is evaluated immediately after the coating is deposited visually with the naked eye in daylight in two parameters: smooth, non-uniform.
Dangos laidumą elektrai vertina pagal elektrochemiškai nusodinamos nikelio dangos sklidimo greitį nuo kontakto cm/min. Be to, dangos laidumas vertinamas pagal tai, ar po elektrocheminio nikeliavimo dielektriko paviršius pasidengė nikeliu pilnai (+) ar nepilnai (-).The electrical conductivity of the coating is evaluated by the velocity of the electrochemically deposited nickel coating from contact per cm / min. In addition, the conductivity of the coating is evaluated according to whether the surface of the dielectric is fully (+) or partially (-) coated with nickel after electrochemical nickel plating.
Siūlomo būdo efektyvumui įvertinti buvo paruošti 6 pavyzdžiai, iš kurių 1 ir 2 yra kontroliniai, o 3-6 paruošti pagal siūlomą būdą su skirtinga tirpalo komponentų koncentracija ir skirtingais technologiniais režimais.For the evaluation of the efficiency of the proposed method, 6 examples were prepared, of which 1 and 2 are control and 3-6 are prepared according to the proposed method with different concentration of solution components and different technological regimes.
1,3 ir 5 pavyzdžiuose apdorojimui naudojamos plokštelės iš ABS plastmasės, kurių paviršiaus plotas 50 cm , o 2,4 ir 6 pavyzdžiuose profiliuoti gaminiai iš smūgiams atsparaus polistireno (SAPS), kurių paviršiaus plotas 70 cm.Examples 1,3 and 5 use plates made of ABS plastic with a surface area of 50 cm, while Examples 2,4 and 6 use profiles made of impact-resistant polystyrene (SAPS) with a surface area of 70 cm.
PAVYZDYSEXAMPLE
Plokšteles iš ABS plastmasės, kurių paviršiaus plotas 50 cm’ 3 min. ėsdina tirpale, kuriame yra 4 M H2SO4 ir 3,5 M CrO3, esant 70 °C temperatūrai.Plates made of ABS plastic with a surface area of 50 cm 'for 3 min. corrosive in solution containing 4 M H2SO4 and 3.5 M CrO3 at 70 ° C.
Po ėsdinimo plokšteles nuplauna vandeniu ir 30 s apdoroja tirpale, kuriame yra 0,5 M CUSO4 5Η?Ο ir NH4OH iki pH 9,5, esant 20 °C temperatūrai. Po to, gaminius merkia 20 s į distiliuotą vandenį ir dar 30 s apdoroja sulfidinimo tirpale, kuriame yra 0,01 M Na2S2, esant 20 °C temperatūrai.After etching, the plates are rinsed with water and treated for 30 s with a solution of 0.5 M CUSO4 5ΗΗΟ and NH 4 OH to pH 9.5 at 20 ° C. Subsequently, the articles are immersed in distilled water for 20 s and treated with a 0.01 M Na 2 S 2 sulphide solution at 20 ° C for a further 30 s.
Po apdorojimo gaminius plauna šaltu vandeniu ir 15 min. elektrochemiškai nikeliuoja Uotso elektrolite, kuriame yra (M): NiSOf · 7H2O - 1,2; NiCl? ' 6H2O - 0,2 ir H3BO3 - 0,5; pradinis srovės tankis 0,3 A/dm2, temperatūra 40 °C.After treatment, the products are washed with cold water for 15 minutes. electrochemically nickel plated in Utsz electrolyte containing (M): NiSOf · 7H 2 O - 1,2; NiCl? '6H 2 O = 0.2 and H3BO3 = 0.5; initial current density 0.3 A / dm 2 , temperature 40 ° C.
PAVYZDYSEXAMPLE
Profiliuotus gaminius iš smūgiams atsparaus polistireno (SAPS), kurių paviršiaus plotas 70 cm , 30 s ėsdina tirpale, kuriame yra 15 M H2SO4 ir 0,1 M CrCb, esant 20 °C temperatūrai, nuplauna vandeniu ir dar 30 s ėsdina emulsijoje iš ksilolo (0,2 g/1) ir sintanolo (0,2 g/1), esant 20 °C temperatūrai.Profiled articles from shock-resistant polystyrene (SAPS) with surface area of 70 cm for 30 sec are etched in a solution containing 15 MH 2 SO 4 and 0.1 M Crcbus at 20 ° C, rinsed with water and etched for a further 30 seconds with an emulsion of xylene (0.2 g / l) and sintanol (0.2 g / l) at 20 ° C.
Po ėsdinimo gaminius nuplauna distiliuotu vandeniu ir 30 s apdoroja metalo amoniakatiniame tirpale, kuriame yra 0,5 M CuSO4 4 5H2O ir NH4OH iki pH 9,8, esant 20 °C temperatūrai. Po to gaminius 20 s merkia į distiliuotą vandenį ir dar 30 s apdoroja sulfidinimo tirpale, kuriame yra 0,1 M Na2S, esant 20 °C temperatūrai.After etching, the products are rinsed with distilled water and treated for 30 s with a solution of 0.5 M CuSO 4 4 5 H 2 O and NH 4 OH in methanolic ammonia at pH 9.8 at 20 ° C. The products are then immersed in distilled water for 20 s and treated for 30 seconds at 20 ° C with a sulphidation solution containing 0.1 M Na 2 S.
Po apdorojimo gaminius plauna distiliuotu vandeniu ir elektrochemiškai nikeliuoja Uotso elektrolite, kaip aprašyta 1 pavyzdyje.After treatment, the articles are washed with distilled water and electrochemically nickelized in a Uotts electrolyte as described in Example 1.
PAVYZDYSEXAMPLE
Gaminių iš ABS plastmasės paviršių ėsdina 1 pavyzdyje aprašytu būdu.The plastic surfaces of ABS products are etched as described in Example 1.
Po ėsdinimo gaminius nuplauna distiliuotu vandeniu ir 30 s apdoroja metalo amoniakatiniame tirpale, kuriame yra 0,1 M CoSO4 ir NH4OH iki pH 10,0, esant 20 °C temperatūrai. Po to gaminius 30 s merkia į distiliuotą vandenį ir dar 30 s apdoroja sulfidinimo tirpale, kuriame yra 0,01 M Na2S2Po apdorojimo gaminius plauna distiliuotu vandeniu ir 15 min. elektrochemiškai nikeliuoja Uotso elektrolite, kaip aprašyta 1 pavyzdyje.After etching, the articles are rinsed with distilled water and treated for 30 s with a metal ammonia solution containing 0.1 M CoSO 4 and NH 4 OH to pH 10.0 at 20 ° C. The products are then immersed in distilled water for 30 s and treated with a 0.01 M Na 2 S 2 Po treatment solution in distilled water for another 30 s and washed for 15 min. is electrochemically nickelized in the Uotts electrolyte as described in Example 1.
PAVYZDYSEXAMPLE
Gaminių iš smūgiams atsparaus polistireno (SAPS) paviršių ėsdina 2 pavyzdyje aprašytu būdu.The surface of impact-resistant polystyrene (SAPS) is etched as described in Example 2.
Po ėsdinimo gaminius nuplauna distiliuotu vandeniu ir 30 s apdoroja metalo amoniakatiniame tirpale, kuriame yra 1,0 M CoSO4 ir NH4OH iki pH 10,5, esant 20 °C temperatūrai. Po to gaminius 20 s merkia į distiliuotą vandenį ir dar 30 s apdoroja sulfidinimo tirpale, kuriame yra 0,05 M K2S4.After etching, the products are rinsed with distilled water and treated for 30 s in a solution of 1.0 M CoSO 4 and NH 4 OH in methanolic ammonia to pH 10.5 at 20 ° C. The products are then immersed in distilled water for 20 s and treated for a further 30 s in a sulphidation solution containing 0.05 MK 2 S 4 .
Po apdorojimo gaminius plauna distiliuotu vandeniu ir 15 min. elektrochemiškai nikeliuoja Uotso elektrolite, kaip aprašyta 1 pavyzdyje.After treatment, the products are washed with distilled water for 15 minutes. is electrochemically nickelized in the Uotts electrolyte as described in Example 1.
PAVYZDYSEXAMPLE
Gaminių iš ABS plastmasės paviršių ėsdina 1 pavyzdyje aprašytu būdu.The plastic surfaces of ABS products are etched as described in Example 1.
Po ėsdinimo gaminius nuplauna distiliuotu vandeniu ir 30 s apdoroja metalo amoniakatiniame tirpale, kuriame yra 0,25 M CoSO4 ir NH4OH iki pH 9,0, esant 20 °C temperatūrai. Po to gaminius 30 s merkia į distiliuotą vandenį ir 30 s apdoroja sulfidinimo tirpale, kuriame yra 0,02 M K2S3.After etching, the articles are rinsed with distilled water and treated for 30 s with a metal ammonia solution containing 0.25 M CoSO 4 and NH 4 OH to pH 9.0 at 20 ° C. The articles are then immersed in distilled water for 30 s and treated with a 0.02 M K 2 S 3 sulfide solution for 30 s.
Po apdorojimo gaminius plauna distiliuotu vandeniu ir 15 min. elektrochemiškai nikeliuoja Uotso elektrolite, kaip aprašyta 1 pavyzdyje.After treatment, the products are washed with distilled water for 15 minutes. is electrochemically nickelized in the Uotts electrolyte as described in Example 1.
PAVYZDYSEXAMPLE
Gaminių iš smūgiams atsparaus polistireno (SAPS) paviršių ėsdina 2 pavyzdyje aprašytu būdu.The surface of impact-resistant polystyrene (SAPS) is etched as described in Example 2.
Po ėsdinimo gaminius nuplauna distiliuotu vandeniu ir 30 s apdoroja metalo amoniakatiniame tirpale, kuriame yra 0,25 M CoSO4 ir NH4OH iki pH 12,0, esant 20 °C temperatūrai.After etching, the products are rinsed with distilled water and treated for 30 s with a metal ammonia solution containing 0.25 M CoSO 4 and NH 4 OH to pH 12.0 at 20 ° C.
Po to gaminius 20 s merkia į distiliuotą vandenį ir 30 s apdoroja sulfidinimo tirpale, kuriame yra 0,1 M Na2S.The products are then immersed in distilled water for 20 s and treated with sulfurization solution containing 0.1 M Na 2 S for 30 s.
Po apdorojimo gaminius plauna distiliuotu vandeniu ir 15 min. elektrochemiškai nikeliuoja Uotso elektrolite, kaip aprašyta 1 pavyzdyje.After treatment, the products are washed with distilled water for 15 minutes. is electrochemically nickelized in the Uotts electrolyte as described in Example 1.
Duomenys apie gautų dangų savybes pateikti lentelėje.The properties of the resulting coatings are given in the table.
Claims (1)
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT98-161A LT4713B (en) | 1998-11-13 | 1998-11-13 | Process for obtaining electrical conductive coating on dielectric surface |
| EP99115967A EP1001052B1 (en) | 1998-11-13 | 1999-08-13 | Method for metallizing a plastic surface |
| ES99115967T ES2224507T3 (en) | 1998-11-13 | 1999-08-13 | PROCEDURE FOR METALIZATION OF A PLASTIC SURFACE. |
| AT99115967T ATE266107T1 (en) | 1998-11-13 | 1999-08-13 | METHOD FOR METALLIZING A PLASTIC SURFACE |
| DE59909392T DE59909392D1 (en) | 1998-11-13 | 1999-08-13 | Process for metallizing a plastic surface |
| KR1020017006001A KR20010086023A (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| MXPA01004811A MXPA01004811A (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface. |
| AU12433/00A AU1243300A (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| PCT/US1999/026066 WO2000029646A1 (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| JP2000582621A JP2002530529A (en) | 1998-11-13 | 1999-11-05 | Metallization process for plastic surfaces |
| BR9915280-0A BR9915280A (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| CA002350422A CA2350422A1 (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| CNB998154938A CN1184361C (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| US09/831,008 US6712948B1 (en) | 1998-11-13 | 1999-11-05 | Process for metallizing a plastic surface |
| TW088119793A TWI221163B (en) | 1998-11-13 | 1999-11-11 | Process for metallizing a plastic surface |
| US10/703,057 US20040096584A1 (en) | 1998-11-13 | 2003-11-06 | Process for metallizing a plastic surface |
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| LT98-161A LT4713B (en) | 1998-11-13 | 1998-11-13 | Process for obtaining electrical conductive coating on dielectric surface |
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| LT98161A LT98161A (en) | 2000-05-25 |
| LT4713B true LT4713B (en) | 2000-10-25 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU980858A1 (en) | 1981-07-23 | 1982-12-15 | Вильнюсский государственный университет им.В.Капсукаса | Method of producing electrically conductive coatings |
| SU1762425A1 (en) | 1991-01-22 | 1992-09-15 | Институт Химии И Химической Технологии Литовской Ан | Process of deposition of current-conducting coat of sulfide of copper on dielectric substrate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU980858A1 (en) | 1981-07-23 | 1982-12-15 | Вильнюсский государственный университет им.В.Капсукаса | Method of producing electrically conductive coatings |
| SU1762425A1 (en) | 1991-01-22 | 1992-09-15 | Институт Химии И Химической Технологии Литовской Ан | Process of deposition of current-conducting coat of sulfide of copper on dielectric substrate |
Non-Patent Citations (1)
| Title |
|---|
| I. STAVNICER ET AL.: "Kaprono gaminių galvaninė metalizacija", GAMYBOS TECHNOLOGIJA IR ORGANIZACIJA, 1978, pages 56 - 57 |
Also Published As
| Publication number | Publication date |
|---|---|
| LT98161A (en) | 2000-05-25 |
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