MD753Z - Method for producing microwire contact in glass insulation - Google Patents

Method for producing microwire contact in glass insulation Download PDF

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Publication number
MD753Z
MD753Z MDS20130117A MDS20130117A MD753Z MD 753 Z MD753 Z MD 753Z MD S20130117 A MDS20130117 A MD S20130117A MD S20130117 A MDS20130117 A MD S20130117A MD 753 Z MD753 Z MD 753Z
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MD
Moldova
Prior art keywords
microwire
glass insulation
contact
glass
metal
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MDS20130117A
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Moldavian (mo)
Romanian (ro)
Russian (ru)
Inventor
Светлана СИДЕЛЬНИКОВА
Павел ГЛОБА
Леонид КОНОПКО
Альбина НИКОЛАЕВА
Александр ДИКУСАР
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Институт Прикладной Физики Академии Наук Молдовы
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Priority to MDS20130117A priority Critical patent/MD753Z/en
Publication of MD753Y publication Critical patent/MD753Y/en
Publication of MD753Z publication Critical patent/MD753Z/en

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Abstract

The invention relates to microwire contact production methods and can be used in the manufacture of microthermocouples.The method for producing microwire contact in glass insulation consists in that onto a dielectric substrate is fixed a microwire in glass insulation, it is preliminarily processed, on one end of the microwire, on the glass insulation and substrate is chemically deposited a metal layer, it is placed the substrate with the microwire in glass insulation into a bath with electrolyte, then on the other end of the microwire, by the electrochemical method using a pulsed current, is deposited a metal, the microwire, in the electrochemical deposition process, is used as cathode, and as anode a metal wire, at the same time the electrochemical deposition is carried out during 18…25min, with the current intensity of 1 A/dm2 and the period between pulses of 2 s.

Description

Invenţia se referă la metodele de obţinere a contactului microfirului şi poate fi utilizată la fabricarea microtermocuplurilor. The invention relates to methods of obtaining microwire contact and can be used in the manufacture of microthermocouples.

Este cunoscut procedeul de obţinere a contactului microfirului în izolaţie de sticlă, care constă în aceea că prin metoda electrochimică pe microfir se depune un metal, care se caracterizează prin proprietăţi termoelectrice ce permit folosirea microfirelor la fabricarea unor termocupluri speciale [1]. The process of obtaining the microwire contact in glass insulation is known, which consists in depositing a metal on the microwire by electrochemical method, which is characterized by thermoelectric properties that allow the use of microwires in the manufacture of special thermocouples [1].

Dezavantajul acestui procedeu constă în aceea că utilizarea ulterioară a microfirelor în izolaţie de sticlă se complică prin lipsa unei bune conexiuni a lor cu colectorul de curent. The disadvantage of this process is that the subsequent use of microwires in glass insulation is complicated by the lack of a good connection between them and the current collector.

Cea mai apropiată soluţie este procedeul de obţinere a contactului microfirului în izolaţie de sticlă de diametru mic (≤10 µm) prin aplicarea amestecului eutectic lichid de In-Ga pe un capăt al microfirului, fixat pe un suport [2]. The closest solution is the process of obtaining the microwire contact in small diameter glass insulation (≤10 µm) by applying the liquid In-Ga eutectic mixture to one end of the microwire, fixed on a support [2].

Dezavantajele procedeului constau în aceea că este limitat de procesul de difuziune a amestecului de In-Ga la temperatura camerei şi nu poate fi asigurat un contact sigur pentru microfirul în izolaţie de sticlă de diametru mic. The disadvantages of the process are that it is limited by the diffusion process of the In-Ga mixture at room temperature and a reliable contact cannot be ensured for the small diameter glass-insulated microwire.

Problema pe care o rezolvă invenţia constă în obţinerea unui contact sigur al microfirului în izolaţie de sticlă de diametru mic, menţinând puritatea microfirului. The problem solved by the invention consists in obtaining a secure contact of the microwire in small diameter glass insulation, maintaining the purity of the microwire.

Procedeul, conform invenţiei, înlătură dezavantajele menţionate mai sus prin aceea că se fixează pe un suport dielectric un microfir în izolaţie de sticlă, se prelucrează preventiv, se depune chimic un strat de metal pe un capăt al microfirului, pe izolaţia de sticlă şi suport, se amplasează suportul cu microfirul în izolaţie de sticlă într-o baie cu electrolit, apoi pe celălalt capăt al microfirului, prin metoda electrochimică cu aplicarea curentului prin impulsuri, se depune un metal. Microfirul, în procesul depunerii electrochimice, este utilizat în calitate de catod, iar în calitate de anod este utilizat un fir din metal, totodată depunerea electrochimică se realizează timp de 18…25 min, cu intensitatea curentului de 1 A/dm2 şi cu perioada dintre impulsuri de 2 s. The process, according to the invention, eliminates the above-mentioned disadvantages by fixing a glass-insulated microwire on a dielectric support, pre-treating it, chemically depositing a metal layer on one end of the microwire, on the glass insulation and support, placing the support with the glass-insulated microwire in an electrolyte bath, then depositing a metal on the other end of the microwire by electrochemical method with pulsed current application. The microwire, in the electrochemical deposition process, is used as a cathode, and a metal wire is used as an anode, while the electrochemical deposition is carried out for 18…25 min, with a current intensity of 1 A/dm2 and a period between pulses of 2 s.

Rezultatul invenţiei constă în asigurarea contactului microfirului în izolaţie de sticlă. The result of the invention consists in ensuring the contact of the microwire in glass insulation.

Exemplu de realizare a procedeului Example of the process

Preliminar depunerii chimice, suprafaţa microfirului în izolaţie de sticlă, fixat pe un suport, s-a prelucrat cu o soluţie de 2% NaOH timp de 2 ore pentru asigurarea rugozităţii suprafeţei de sticlă, după care timp de 2 min s-a prelucrat cu apă distilată cu o temperatură t = 50…60°C . Apoi, timp de 15 min a urmat procesul de sensibilizare într-o soluţie acidă de clorură de staniu cu spălarea ulterioară într-o soluţie slabă de NaOH (pH ~ 9) şi uscarea la aer. A urmat activarea la o temperatură t = 60°C într-o soluţie acidă de clorură de paladiu cu uscarea ulterioară la aer. Pentru depunerea chimică, în particular, a nichelului s-a folosit următorul electrolit, g/l: NiSO4 · 7H2O - 25, NaH2PO2 - 25, Na4P2O7 · 10H2O - 50, pH = 10 - 11 (se adaugă amoniac), t = 65…75°C. Procesul de depunere chimică a decurs timp de o oră, după care a urmat spălarea şi uscarea microfirului în izolaţie de sticlă. După uscare, suportul cu microfirul în izolaţie de sticlă a fost amplasat într-o baie cu electrolit, unde pe celălalt capăt al microfirului, prin metoda electrochimică cu aplicarea curentului prin impulsuri s-a depus un metal, microfirul, în procesul depunerii electrochimice, fiind utilizat în calitate de catod, iar în calitate de anod fiind utilizat un fir din metal, totodată depunerea electrochimică a fost realizată timp de 18…25 min, cu intensitatea curentului de 1 A/dm2 şi cu perioada dintre impulsuri de 2 s. Prior to chemical deposition, the surface of the glass-insulated microwire, fixed on a support, was treated with a 2% NaOH solution for 2 hours to ensure the roughness of the glass surface, after which it was treated with distilled water at a temperature of t = 50…60°C for 2 min. Then, for 15 min, the sensitization process in an acidic solution of tin chloride followed by washing in a weak solution of NaOH (pH ~ 9) and air drying. Activation at a temperature of t = 60°C in an acidic solution of palladium chloride followed by air drying. For chemical deposition, in particular, of nickel, the following electrolyte was used, g/l: NiSO4 · 7H2O - 25, NaH2PO2 - 25, Na4P2O7 · 10H2O - 50, pH = 10 - 11 (ammonia is added), t = 65…75°C. The chemical deposition process lasted for one hour, after which the microfiber in glass insulation was washed and dried. After drying, the support with the glass-insulated microwire was placed in an electrolyte bath, where a metal was deposited on the other end of the microwire, by the electrochemical method with the application of pulsed current, the microwire, in the electrochemical deposition process, being used as a cathode, and a metal wire being used as an anode, at the same time the electrochemical deposition was carried out for 18…25 min, with a current intensity of 1 A/dm2 and a period between pulses of 2 s.

Astfel, procedeul elaborat permite obţinerea contactului microfirului în izolaţie de sticlă, fapt ce poate fi utilizat la fabricarea microtermocuplurilor. Thus, the developed process allows obtaining microwire contact in glass insulation, which can be used in the manufacture of microthermocouples.

1. Меглей Д. Ф., Дынту М. П., Дону С. В., Руссу А. И. Микротермопара из бифилярного микропровода на основе термоэлектрического материала Bi2Te3. Термоэлектричество, 2009, № 2, с. 65 - 69 1. Meglei D. F., Dyntu M. П., Дону С. V., Russu A. И. Microthermocouple from a bifilar microwire based on thermoelectric material Bi2Te3. Термоелектричество, 2009, № 2, с. 65 - 69

2. Gitsu D., Huber T., Konopko A., Nikolaeva A. Aharonov - Bohm Oscillations in Single Crystal Bi Nanowires. Journal of Nanoelectronics and Optoelectronics, № 4, p. 124 - 133 2. Gitsu D., Huber T., Konopko A., Nikolaeva A. Aharonov - Bohm Oscillations in Single Crystal Bi Nanowires. Journal of Nanoelectronics and Optoelectronics, № 4, p. 124 - 133

Claims (1)

Procedeu de obţinere a contactului microfirului în izolaţie de sticlă, care constă în aceea că se fixează pe un suport dielectric un microfir în izolaţie de sticlă, se prelucrează preventiv, se depune chimic un strat de metal pe un capăt al microfirului, pe izolaţia de sticlă şi suport, se amplasează suportul cu microfirul în izolaţie de sticlă într-o baie cu electrolit, apoi pe celălalt capăt al microfirului, prin metoda electrochimică cu aplicarea curentului prin impulsuri, se depune un metal, microfirul, în procesul depunerii electrochimice, este utilizat în calitate de catod, iar în calitate de anod este utilizat un fir din metal, totodată depunerea electrochimică se realizează timp de 18…25 min, cu intensitatea curentului de 1 A/dm2 şi cu perioada dintre impulsuri de 2 s.Process for obtaining the contact of the microwire in glass insulation, which consists in fixing a microwire in glass insulation on a dielectric support, pre-treating it, chemically depositing a metal layer on one end of the microwire, on the glass insulation and support, placing the support with the microwire in glass insulation in an electrolyte bath, then on the other end of the microwire, by the electrochemical method with the application of pulsed current, a metal is deposited, the microwire, in the electrochemical deposition process, is used as a cathode, and a metal wire is used as an anode, at the same time the electrochemical deposition is carried out for 18…25 min, with a current intensity of 1 A/dm2 and with a period between pulses of 2 s.
MDS20130117A 2013-07-02 2013-07-02 Method for producing microwire contact in glass insulation MD753Z (en)

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MD753Y MD753Y (en) 2014-03-31
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Publication number Priority date Publication date Assignee Title
RU2670631C1 (en) * 2017-06-30 2018-10-24 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Method of preparing microwires with glass shell for electrical connection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1797079A1 (en) * 1990-11-19 1993-02-23 Samarskij Polt I Im V V Kujbys Method of measurement of electric values of active resistance, induction and capacitance
MD3961F1 (en) * 2008-01-09 2009-09-30 Universitatea Tehnica A Moldovei Device for measuring the linear resistance of the glass-insulated wire in the casting process
MD3919G2 (en) * 2008-02-15 2009-12-31 Технический университет Молдовы Device for measuring the resistance of articles of insulated wire in the process of adjustment to nominal value
MD3933G2 (en) * 2008-07-09 2010-01-31 Технический университет Молдовы Device for measuring the linear resistance of the insulated wire
MD173Z (en) * 2008-07-25 2010-10-31 Институт Электронной Инженерии И Промышленных Технологий Академии Наук Молдовы Process for the manufacture of bifilar microwire
  • 2013

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1797079A1 (en) * 1990-11-19 1993-02-23 Samarskij Polt I Im V V Kujbys Method of measurement of electric values of active resistance, induction and capacitance
MD3961F1 (en) * 2008-01-09 2009-09-30 Universitatea Tehnica A Moldovei Device for measuring the linear resistance of the glass-insulated wire in the casting process
MD3919G2 (en) * 2008-02-15 2009-12-31 Технический университет Молдовы Device for measuring the resistance of articles of insulated wire in the process of adjustment to nominal value
MD3933G2 (en) * 2008-07-09 2010-01-31 Технический университет Молдовы Device for measuring the linear resistance of the insulated wire
MD173Z (en) * 2008-07-25 2010-10-31 Институт Электронной Инженерии И Промышленных Технологий Академии Наук Молдовы Process for the manufacture of bifilar microwire

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Gitsu D., Huber T., Konopko A., Nikolaeva A. Aharonov - Bohm Oscillations in Single Crystal Bi Nanowires. Journal of Nanoelectronics and Optoelectronics, № 4, p. 124 - 133 *
Меглей Д. Ф., Дынту М. П., Дону С. В., Руссу А. И. Микротермопара из бифилярного микропровода на основе термоэлектрического материала Bi2Te3. Термоэлектричество, 2009, № 2, с. 65 - 69 *

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