Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis and crystallization of solder glass for electronic package

전자 Package 봉착유리의 합성과 결정화

  • Kyung Nam Choi (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Byoung Chan Kim (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Byoung Woo Kim (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Hyung Suk Kim (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Hee Chan Park (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Myung Mo Son (Department of Ceramic Technology, Taegu Technical College) ;
  • Heon Soo Lee (Department of Ceramic Technology, Taegu Technical College)
  • Published : 2000.12.01
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Abstract

Low-temperature solder glass for use in electronic package was experimentally prepared and its crystallization behavior was investigated using differential thermal analysis (DTA) under nonisothermal condition. The composition of the solder glass was determined from PbO-ZnO-$B_2$$O_3$-$TiO_2$ glasses containing small amounts of CaO, $SiO_2$$A1_2$$O_3$ and $P_2$$O_5$. The crystallization exotherm corresponding to the formation of lead titanate (PbTiO$_3$) was observed. The crystallization of $PbTiO_3$was a three-dimensional process with the average activation energy of 223$\pm$3 kJ/mol for the crystallization from the glass matrix.

전자 package용 저온봉착 유리를 실험적으로 합성하고 이 유리의 결정화 거동을 비등온 조건하에서 열분석기(DTA)를 이용하여 조사하였다. 이 유리의 조성을 미량의 CaO, $SiO_2$$A1_2$$O_3$ 및 $P_2$$O_5$ 등이 함유된 PbO-ZnO-$B_2$$O_3$-$TiO_2$유리로부터 결정하였다. 연 티탄산염($PbTiO_3$)생성에 해당되는 결정화 발열이 관찰되었다. 이 $PbTiO_3$의 결정화는 삼차원과정으로 진행되었고 유리기지(glass matrix)로부터 생성되는 이 결정의 평균 활성화에너지는 223$\pm$3 kJ/mo1 이었다.

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