Abstract:
A radiation curing pressure sensitive adhesive composition and a pressure sensitive adhesive tape comprising the composition are provided to improve initial adhesive strength and to obtain excellent releasing property even after the radiation curing with UV rays of a low energy. A radiation curing pressure sensitive adhesive composition comprises 35-65 wt% of an acrylic binder composition which comprises a copolymer of a cellulose-based compound and an acrylic monomer; 25-60 wt% of an acrylate oligomer compound; 1-20 wt% of a curing agent; and 1-5 wt% of a photoinitiator. Preferably the copolymer comprises 5-20 wt% of a cellulose-based compound and 70-95 wt% of an acrylic monomer, and the cellulose-based compound contains 2-30 wt% of acetyl and has a hydroxyl number of 20-150, a glass transition temperature of 85-130 deg.C and a weight average molecular weight of 1,200-70,000.
Abstract:
본 발명은 반도체 패키징용 고내열 접착테이프에 관한 것으로, 보다 상세하게는 기재필름과 보호필름 사이에 적어도 한 층 이상의 폴리이소이미드를 포함하는 고내열 접착층을 포함하여 도막의 내열성 및 도막밀도를 증가시켜 발포성 보이드 생성을 억제하여 신뢰도가 우수한 반도체 패키징용 고내열 접착테이프에 관한 것이다. 접착테이프, 폴리이소이미드, 고내열 접착층, 반도체 패키징
Abstract:
본 발명은 비닐기를 포함하는 아크릴계 점착 바인더, 에스테르화된 퀴논디아지드 화합물, 열경화제, 광중합 개시제를 포함하는 광경화성 점착 조성물 및 점착 필름에 관한 것으로, 광경화전에 링프레임, 웨이퍼 또는 다이 접착용 접착층과 우수한 부착력을 나타내고, 자외선 경화시 에너지 양이 일정하지 못한 광경화 조건에서도 우수한 픽업성을 갖도록 함으로써, 다이싱 필름(Dicing Film) 및 다이싱 다이본딩 필름(Dicing Die Bonding Film)에 유용하게 사용할 수 있도록 하는 발명에 관한 것이다. 반도체, 점착 테이프, 광경화성 점착 조성물, 에스테르화된 퀴논디아지드 화합물, 에폭시기, 열경화제, 광개시제, 다이싱, 다이싱 다이본딩
Abstract:
A hybrid function tape for a semiconductor packaging and a manufacturing method of a semiconductor using the same are provided to improve the strippability of the adhesion layer by putting a first adhesion layer on the adhesion layer and a second adhesion layer. A UV curable adhesion layer(110) is formed in one side of a base film(100). A first adhesive layer(105) and a second adhesive layer(120) are formed on an adhesion layer. A tape performs the process of grinding the reverse surface of the element forming the surface of a semiconductor board in the state of being adhered in the element forming the surface of the semiconductor substrate in which a plurality of devices is formed. A dicing tape, in which the UV curable adhesion layer is formed in a ground semiconductor substrate board, is adhered and the semiconductor board is performed dicing with each chip.
Abstract:
A photocurable adhesive composition for forming a pressure sensitive adhesive layer is provided to show excellent adhesion with ring frame, wafer or a dicing die bonding film before photocuring. A photocurable adhesive composition comprises (A) an acrylic adhesive binder 100.0 parts by weight; (B) a UV-curable urethane acrylate oligomer 10-150 parts by weight having viscosity of 10,000 cps or more at 40 °C; (C) a thermosetting agent 0.5-5 parts by weight; and (D) a photopolymerization initiator 0.1-3 parts by weight. The acrylic adhesive binder(A) comprises epoxy group 2~10 mole %.
Abstract:
본 고안은 다수개의 다이접착필름이 코어에 권취된 다이접착필름롤에 관한 것으로, 더욱 상세하게는 상기 코어에 여유필름이 소정의 두께로 권취되어 있는 다이접착필름롤을 제공하는 것이며, 본 고안에 의하면 여유필름을 상기 접착필름보다 저렴한 비용의 필름으로 대처하여 기계인식 가능한 권취 두께를 저렴하게 형성할 수 있으므로, 생산 비용 및 공정이 축소되고 사용시 제품에 대한 기계적 인식 오류를 효과적으로 감소시킬 수 있다. 다이접착필름, 결합부, 여유필름, 여유장, 여유 컷, 권취, 코어
Abstract:
A composition for forming an adhesive film is provided to prevent an acrylic adhesive binder and UV curable acrylate from being transferred to an adhesive layer when used in a dicing die bonding film, and to realize high pick-up property even in large chips greater than 10 mm X 10 mm after UV irradiation. A composition for forming an adhesive film comprises: (A) 100 parts by weight of a polymer binder resin; (B) 20-150 parts by weight of a low-molecular weight UV curable acrylate; (C) 0.1-10 parts by weight of a thermal curing agent; and (D) 0.1-5 parts by weight of a photopolymerization initiator based on 100 parts by weight of the UV curable acrylate. The adhesive film formed by the composition has a sea-island surface structure, wherein the island region has an average size of 1-10 micrometers.