Abstract:
The present invention relates to a stacked inductor composed of a substrate with an inner electrode coil pattern and a stacked body whereby a magnetic body is stacked on the substrate with the inner electrode coil pattern, wherein the substrate is formed using a compound containing a magnetic material. According to the present invention, the thickness of chip can be minimized because the substrate can be used for a gap material by placing the substrate on the middle of an electrode circuit pattern when manufacturing a power inductor. Also, the magnetic properties can be improved by including the magnetic material in the compound of the substrate. The inductance can be increased by adding liquid crystal oligomer and nanoclay in the compound so as to increase the insulation between the magnetic metal. The dimensional stability and physical strength of a structure can be obtained.
Abstract:
PURPOSE: A method for manufacturing a printed circuit board is provided to prevent an excitation phenomenon between a circuit wiring layer and an insulating layer through a surface process of an organometallic compound layer. CONSTITUTION: A first circuit wiring layer is formed on top of a substrate(S10). An organometallic compound layer is formed on the surface of the first circuit wiring layer by a brown oxide process(S20). The surface of the organometallic compound layer is processed by using composition including an alkali aqueous sollution(S30). The thickness of the organometallic compound layer is diminished after the surface process. An insulating layer is formed on the first circuit wiring layer(S40). A second circuit wiring layer is formed on the insulating layer(S50).
Abstract:
본 발명은 패키지 기판 및 이의 제조 방법을 개시한다. 패키지 기판은 절연층; 및 상기 절연층의 양면에 각각 배치된 회로층을 포함하며, 상기 절연층은 무기물 파우더와 상기 무기물 파우더의 외피를 덮는 보론 나이트라이드를 포함하는 열전도성 절연체 및 바인더 수지를 포함한다. 패키지 기판, 열, 방출, 보론 나이트라이드, 열전도성, 절연체
Abstract:
PURPOSE: A resin composition for a printed circuit board, and the printed circuit board using thereof are provided to prevent a micro crack and the delamination of the printed circuit board during a thermal shock test. CONSTITUTION: A resin composition for a printed circuit board contains a complex epoxy resin, a bisphenol A system hardener, a curing accelerator, and an inorganic filler. The complex epoxy resin includes thereof: 20~50wt% of bisphenol A type epoxy resin dispersed with silicon elastomer particles with a core-shell structure; 20~60wt% of cresol novolak epoxy resin; and 20~30wt% of phosphorous-based epoxy resin.
Abstract:
PURPOSE: A resin composition for a printed circuit board and the printed circuit board using thereof are provided to secure the excellent thermal stability and mechanical strength of the printed circuit board, and to reduce the hygroscopic rate. CONSTITUTION: A resin composition for a printed circuit board contains the following: 100 parts of complex epoxy resin by weight including 41~80wt% of naphthalene-modified epoxy resin, and 20~59wt% of phosphorous-based epoxy resin; 0.3~1.5 parts of bisphenol A system hardener by weight; 0.1~1 parts of curing accelerator by weight; and 10~40 parts of inorganic filler by weight.
Abstract:
본 발명은 낮은 유전율을 가지는 저손실 절연재 (Low Loss Dielectric; LLD)로서 유용한 신규의 폴리(p-자일릴렌)계 중합체, 이를 이용한 절연재, 인쇄회로기판 및 기능성 소자에 관한 것이다. 더욱 구체적으로는, 폴리(p-자일릴렌)계 중합체는 하기 화학식 1로 표시되는 반복 단위를 적어도 1 종 포함한다. [화학식 1]
식 중, R1, R2, R7 및 R8 중 적어도 하나는 독립적으로 치환 또는 비치환된 C6-C20의 아릴기이고, 나머지 R1 내지 R8는 각각 독립적으로 수소 또는 치환 또는 비치환된 C1-C3의 선형 또는 분지형의 알킬기이고, n은 400 내지 900의 정수이다. 본 발명의 폴리(p-자일릴렌)계 중합체는 낮은 유전율, 저손실 특성 및 우수한 공정성을 가지고 있어, 저손실 절연재로서 다양한 응용이 가능하다. 중합체, 저유전, 폴리(p-자일릴렌)