KR20100074959A - Method for producing micro gold wire - Google Patents

Method for producing micro gold wire Download PDF

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KR20100074959A
KR20100074959A KR1020080133527A KR20080133527A KR20100074959A KR 20100074959 A KR20100074959 A KR 20100074959A KR 1020080133527 A KR1020080133527 A KR 1020080133527A KR 20080133527 A KR20080133527 A KR 20080133527A KR 20100074959 A KR20100074959 A KR 20100074959A
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South Korea
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wire
gold
quartz glass
glass tube
manufacturing
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KR1020080133527A
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Korean (ko)
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KR101493345B1 (en
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전명철
김선욱
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재단법인 포항산업과학연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
    • B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
    • B23P17/04—Metal-working operations, not covered by a single other subclass or another group in this subclass characterised by the nature of the material involved or the kind of product independently of its shape
    • B23P17/06—Making steel wool or the like
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE: A gold bonding wire manufacturing method is provided to easily remove a glass material from the surface of a wire sample and form precise and uniform gold bonding wires. CONSTITUTION: A gold bonding wire manufacturing method is as follows. A gold stick(20) is loaded into a quartz glass tube(10) with one side sealed. The quartz glass tube with the gold stick loaded is mounted on a draw tower(30) for optical fibre manufacture and heated to high temperature of 1700~2300°C. A wire sample(21) of desired diameter is drawn out. A glass material is removed from the surface of the drawn wire sample so that a gold bonding wire(22) is completed.

Description

금극세선 제조방법{METHOD FOR PRODUCING MICRO GOLD WIRE}METHOD FOR PRODUCING MICRO GOLD WIRE}

본 발명은 금극세선을 제조하는 방법에 관한 것으로, 보다 상세하게는 드로타워를 이용한 광섬유 제조기술을 응용하여 마이크로 단위의 금 극세선을 경제적이고 효율적으로 제조할 수 있도록 개선된 금극세선 제조방법에 관한 것이다. The present invention relates to a method for manufacturing a gold fine wire, and more particularly, an improved method for manufacturing a fine gold wire to economically and efficiently manufacture a micro fine gold wire by applying an optical fiber manufacturing technology using a draw tower. It is about.

극세선은 수요가에 의해 요구되는 재질, 선경, 길이 등을 만족하도록 제조되어 반도체, 전자통신, 기계, 건설, 환경분야 등 산업 전반에서 이용되고 있는 것으로, 극세선중에서도 특히 금극세선은 전자통신 분야에서 주로 이용되고 있다. Microfiber wire is manufactured to satisfy the material, wire diameter, and length required by demand, and is used in industries such as semiconductor, telecommunications, machinery, construction, and environmental fields. It is mainly used in the field.

최근 들어 전자산업은 점점 마이크로화, 나노화를 지향하는 추세로 나아가고 있으며, 이에 따라 전자부품의 제조에 소요되는 금극세선의 수요 역시 나날이 급증해오고 있는 실정이다. 이와 더불어 전자부품의 고품질화에 대한 요구 증대로 인해 균일한 선경을 갖는 금극세선에 대한 요구 또한 증대되고 있다. In recent years, the electronics industry has been moving toward micro and nano-oriented trends. Accordingly, the demand for gold fine wire required for the manufacture of electronic components has been increasing day by day. In addition, due to the increasing demand for high quality electronic components, the demand for fine wire having a uniform wire diameter is increasing.

기존의 금극세선을 제조하는 방법으로는 신선공정을 통한 방법이나 압출을 이용한 방법이 주로 이용되고 있으나, 어느 것에 의하더라도 공정의 특성상 작은 선경(Wire Diameter)으로 갈수록 제조 도중 끊어짐이 잦아서 생산성이 저하되는 문제점이 발생하며, 균일한 선경을 갖는 금극세선을 제조하기 어려운 문제가 발생하 고 있다. Conventional methods of manufacturing fine wires are mainly used by the wire drawing process or extrusion method. However, due to the characteristics of the process, the productivity decreases as the wire diameter decreases more and more during the manufacturing process. A problem arises, and it is difficult to produce a gold fine wire having a uniform wire diameter.

본 발명은 상술한 바와 같은 종래기술의 문제점을 해소하기 위해 안출된 것으로, 금막대를 장입한 고순도 쿼츠 글래스 튜브를 광섬유 제조용 드로 타워(Draw Tower)에 장착하고, 고온으로 승온 후 인출(Drawing)함으로서 마이크로미터 단위의 직경을 갖는 금극세선을 경제적으로 제조하는 방법을 제공하는 것을 그 목적으로 하는 것이다. The present invention has been made to solve the problems of the prior art as described above, by mounting a high-purity quartz glass tube loaded with a gold rod in a draw tower for manufacturing optical fibers, and drawing after drawing the temperature to a high temperature It is an object of the present invention to provide a method for economically manufacturing a fine gold wire having a diameter in micrometers.

상기 과제를 해결하기 위한 본 발명의 금극세선 제조방법은 한쪽이 밀봉된 관 형태의 쿼츠 글래스 튜브 내에 쿼츠 글래스 튜브의 내경보다 작거나 같은 크기의 지름을 갖는 금막대를 장입하는 단계와; 상기 금막대가 장입된 쿼츠 글래스 튜브를 광섬유 제조용 드로타워에 장착하여 고온으로 가열한 후 원하는 직경의 와이어 시편을 인출하는 단계; 및 인출된 와이어 시편 표면의 유리 성분을 제거하여 금극세선을 제조하는 단계;를 포함하여 이루어지는 것을 특징으로 한다. The method of manufacturing a gold fine wire of the present invention for solving the above problems comprises the steps of: charging a gold rod having a diameter smaller than or equal to the inner diameter of the quartz glass tube in a sealed tube-shaped quartz glass tube; Mounting the quartz glass tube loaded with the gold rods to a draw tower for manufacturing optical fibers, heating them to a high temperature, and drawing out a wire specimen having a desired diameter; And removing the glass component on the surface of the drawn wire specimen to prepare a gold fine wire.

이 때, 상기 와이어 시편을 인출하는 단계의 가열 온도는 1700 ~ 2300℃ 인 것이 바람직하다. At this time, the heating temperature of the step of withdrawing the wire specimen is preferably 1700 ~ 2300 ℃.

본 발명의 금극세선 제조방법에 의하면 마이크로미터 단위의 직경을 갖는 수십 Km 이상의 금극세선을 경제적인 방법에 의해 균일하면서도 끊어짐 없이 연속적으로 제조할 수 있다. According to the method of manufacturing a fine gold wire of the present invention, a fine fine wire of tens of Km or more having a diameter of a micrometer unit can be continuously and uniformly produced by an economical method.

이하, 첨부된 도면을 참조하여 본 발명의 금극세선 제조방법을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the method of manufacturing a fine electrode wire of the present invention.

도 1은 본 발명의 금극세선 제조방법을 수행하는 장치의 개략도, 도 2는 쿼츠 글래스 튜브 및 금막대의 종단면도 및 횡단면도이다. 1 is a schematic view of a device for performing a method of manufacturing a fine gold wire of the present invention, Figure 2 is a longitudinal cross-sectional view and a quartz glass tube and gold rods.

본 발명은 도 1에 도시된 바와 같은 드로타워(30)를 이용하여 마이크로단위의 금극세선을 제조하는 것을 특징으로 한다. The present invention is characterized in that the micro fine gold wire is manufactured by using the draw tower 30 as shown in FIG.

우선, 쿼츠 글래스 튜브(10)의 한쪽 끝단을 밀봉한다. 상기 쿼츠 글래스 튜브(10)는 시중에서 쉽게 구할 수 있는 것을 사용할 수 있다. 다음으로, 상기 쿼츠 글래스 튜브(10) 내에 금막대(20)를 장입한다. 상기 금막대(20)는 상용으로 판매되는 봉상 형태로 이루어지고 쿼츠 글래스 튜브(10)의 길이보다 약간 작은 크기를 갖는 것을 사용하는 것이 바람직하다. 또한 가능한한 쿼츠 글래스 튜브(10)의 내경에 최대한 근접하는 직경을 갖는 금막대(20)를 장입하는 것이 바람직하다. First, one end of the quartz glass tube 10 is sealed. The quartz glass tube 10 may be used that can be easily obtained on the market. Next, a gold rod 20 is charged into the quartz glass tube 10. The gold rod 20 is preferably made of a rod-shaped commercially available and having a size slightly smaller than the length of the quartz glass tube (10). In addition, it is preferable to charge the gold rod 20 having a diameter as close as possible to the inner diameter of the quartz glass tube 10 as possible.

다음으로, 쿼츠 글래스 튜브(10)내에 금막대(20)가 채워진 시료를 통상적으로 광섬유 제조업계에서 사용되는 광섬유 인출용 드로타워(30)에 장착한다. Next, a sample in which the gold rod 20 is filled in the quartz glass tube 10 is mounted in a draw tower 30 for drawing an optical fiber, which is typically used in the optical fiber manufacturing industry.

상기 드로타워(30)는 시료를 가열하기 위한 가열로(31)와, 가열된 시료를 인출하기 위한 인출노즐(32)을 포함하여 이루어진다. 상기 가열로(31)에서는 금과 쿼츠 글래스의 융점 이상 이상의 온도로 시편을 가열하는 것이 바람직하다. 따라서 시료를 약 1700 ~ 2300℃ 로 가열하는 것이 바람직하다. 이와 같이 시료를 가열하면서 시료를 당겨주며, 이에 따라 시료는 점점 가늘어지면서 늘어나게 되어 와이어 시편(21)으로 제조된다. 드로타워(30)의 일측에는 직경검출기(33)가 구비되어 인출된 와이어 시편(21)의 직경을 측정하는 역할을 수행한다. 이와 같이 자동화된 외경 측정 및 인출 시스템을 이용하여 지속적인 인출 작업을 수행함으로서 원하는 직경(통상 수십 um이상)의 쿼츠 글래스/금으로 이루어진 와이어 시편을 수십 Km이상 연속적으로 제조할 수 있다. The draw tower 30 includes a heating furnace 31 for heating a sample and a drawing nozzle 32 for drawing out a heated sample. In the heating furnace 31, it is preferable to heat the specimen at a temperature not lower than the melting point of gold and quartz glass. Therefore, it is preferable to heat the sample to about 1700-2300 ° C. In this way, the sample is pulled while heating the sample, whereby the sample becomes thinner and elongated to produce the wire specimen 21. One side of the draw tower 30 is provided with a diameter detector 33 serves to measure the diameter of the drawn wire specimen (21). By performing continuous withdrawal using the automated outer diameter measurement and withdrawal system, wire specimens of quartz glass / gold having a desired diameter (typically tens of um or more) can be continuously produced for several tens of Km or more.

제작된 마이크로단위의 와이어 시편의 표면에는 쿼츠 글래스가 잔류되어 감싸고 있다. 이와 같은 잔류된 유리질의 쿼츠 글래스 제거를 위해 드로타워(30)의 후단으로 후처리로(40)가 구비된다. 후처리로(40)에서는 와이어 시편 표면의 유리질을 제거하는 단계가 수행되며, 표면의 유리질 제거가 완료됨에 따라 수십 um급 선경을 갖는 금극세선(22)을 얻을 수 있다.Quartz glass remains on the surface of the fabricated microunit wire specimen. The post-treatment furnace 40 is provided at the rear end of the draw tower 30 to remove the remaining quartz glass. In the post-treatment furnace 40, a step of removing the glass of the surface of the wire specimen is performed, and as the glass removal of the surface is completed, a fine wire 22 having a tens of um grade wire diameter can be obtained.

이와 같이 얻어진 금극세선은 용도에 따라 전자산업 기타 산업용 부자재 등으로 다양하게 사용될 수 있다. The gold fine wire thus obtained may be used in various ways such as electronics and other industrial auxiliary materials depending on the purpose.

이하에서는 본 발명의 이해를 돕기 위하여 바람직한 실시예를 제시한다. 그러나 하기의 실시예는 본 발명을 보다 쉽게 이해하기 위하여 제공되는 것일 뿐 본 발명이 하기의 실시 예에 한정되는 것은 아니다. Hereinafter, preferred embodiments will be presented to assist in understanding the present invention. However, the following examples are merely provided to more easily understand the present invention, and the present invention is not limited to the following examples.

실시 예Example

외경 30mm, 내경 24mm, 길이 700mm의 규격을 가진 고순도 쿼츠 글래스 튜브의 한쪽 끝단을 초자가공기를 이용하여 용접 밀봉하였다. 이 쿼츠 글래스 튜브 내에 상용으로 판매되는 직경 23.5mm 길이 450mm 금막대를 장입함으로서 금막대가 내부에 장입된 인출 시편을 제작하였다. 이 인출 시편을 광섬유 인출용 드로타워에 장착 후 1950℃까지 승온하여 가열한 후 외경을 100um로 지속적으로 인출하였다. 이때 인출 오차범위는 1um 이내가 되도록 기기를 제어하였다. 인출된 시료는 통상 100±1um의 정밀도를 갖는 선 형태로써 수십 Km이상 연속적으로 얻을 수 있었다. One end of a high-purity quartz glass tube having an outer diameter of 30 mm, an inner diameter of 24 mm, and a length of 700 mm was weld-sealed using a supermachine. In this quartz glass tube, a commercially available 23.5 mm diameter 450 mm gold rod was charged to prepare a drawn specimen with a gold rod loaded therein. After the drawing specimen was mounted in the draw tower for drawing the optical fiber and heated up to 1950 ° C., the drawing was continuously drawn to 100 μm. At this time, the extraction error range was controlled to be within 1um. The withdrawn sample was usually obtained continuously in the form of a line having a precision of 100 ± 1 μm or more in several tens of Km.

제작된 마이크로단위 와이어 시편은 표면을 쿼츠 글래스가 감싸고 있으므로 이들 유리질을 제거해주기 위하여 인출된 와이어 시편을 소금물에 적신 후 다시 1200℃ 이상으로 1시간 이상 가열한 후 상온으로 냉각하였다. 이와 같이 하여 와이어 시편 표면의 유리질이 손쉽게 제거되어 금극세선을 얻을 수 있었으며, 제조된 금극세선은 직경 80±3um 로서 매우 정밀하고 균일함을 확인할 수 있었다. The fabricated microunit wire specimen was covered with quartz glass on its surface, so that the drawn wire specimen was soaked in brine to remove these glass, and then heated to 1200 ° C. or more for 1 hour and then cooled to room temperature. In this way, the glass surface of the wire specimen surface was easily removed to obtain a fine gold wire, and the prepared fine gold wire was 80 ± 3 um in diameter and was found to be very precise and uniform.

도 1은 본 발명의 금극세선 제조방법을 수행하는 장치의 개략도.1 is a schematic diagram of a device for performing the method of manufacturing a fine gold wire of the present invention.

도 2의 (a)는 쿼츠 글래스 튜브 및 금막대의 종단면도.Figure 2 (a) is a longitudinal cross-sectional view of the quartz glass tube and gold rod.

도 2의 (b)는 쿼츠 글래스 튜브 및 금막대의 횡단면도. Figure 2 (b) is a cross-sectional view of the quartz glass tube and gold bar.

♧ 도면의 주요부분에 대한 부호의 설명 ♧♧ description of symbols for the main parts of the drawing

10 : 쿼츠 글래스 튜브 20 : 금막대 21 : 와이어 시편10: quartz glass tube 20: gold bar 21: wire specimen

22 : 금극세선 30 : 드로타워 31 : 가열로 32 : 인출노즐 33 : 직경검출기 40 : 후처리로22: fine gold wire 30: draw tower 31: heating furnace 32: drawing nozzle 33: diameter detector 40: after-treatment furnace

50 : 권취롤50: winding roll

Claims (2)

한쪽이 밀봉된 관 형태의 쿼츠 글래스 튜브 내에 쿼츠 글래스 튜브의 내경보다 작거나 같은 크기의 지름을 갖는 금막대를 장입하는 단계와;Charging a gold rod having a diameter smaller than or equal to an inner diameter of the quartz glass tube in a sealed tube-shaped quartz glass tube; 상기 금막대가 장입된 쿼츠 글래스 튜브를 광섬유 제조용 드로타워에 장착하여 고온으로 가열한 후 원하는 직경의 와이어 시편을 인출하는 단계; 및Mounting the quartz glass tube loaded with the gold rods to a draw tower for manufacturing optical fibers, heating them to a high temperature, and drawing out a wire specimen having a desired diameter; And 인출된 와이어 시편 표면의 유리 성분을 제거하여 금극세선을 제조하는 단계;Removing the glass component on the surface of the drawn wire specimen to prepare a gold fine wire; 를 포함하여 이루어지는 것을 특징으로 하는 금극세선 제조방법. Gold fine wire manufacturing method characterized in that it comprises a. 청구항 1에 있어서, The method according to claim 1, 상기 와이어 시편을 인출하는 단계의 가열 온도는 1700 ~ 2300℃ 인 것을 특징으로 하는 금극세선 제조방법. The heating method of the step of withdrawing the wire specimen is a method of manufacturing fine gold wire, characterized in that 1700 ~ 2300 ℃.
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