KR20020079953A - 발광 다이오드, 광반도체 소자 및 광반도체 소자에 적합한에폭시 수지 조성물 및 그들의 제조방법 - Google Patents
발광 다이오드, 광반도체 소자 및 광반도체 소자에 적합한에폭시 수지 조성물 및 그들의 제조방법 Download PDFInfo
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- KR20020079953A KR20020079953A KR1020027011978A KR20027011978A KR20020079953A KR 20020079953 A KR20020079953 A KR 20020079953A KR 1020027011978 A KR1020027011978 A KR 1020027011978A KR 20027011978 A KR20027011978 A KR 20027011978A KR 20020079953 A KR20020079953 A KR 20020079953A
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- light emitting
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- resin
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- 0 *C1C(CC2)C3C2C1C3 Chemical compound *C1C(CC2)C3C2C1C3 0.000 description 1
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- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/08—Screen moulding, e.g. forcing the moulding material through a perforated screen on to a moulding surface
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
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- C09K11/7774—Aluminates
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Abstract
Description
동작불량 발생률 | 동작불량원인 | |||||
500 | 1000 | 1500 | 2000 | 2500 | ||
cycle | cycle | cycle | cycle | cycle | ||
수지A:비교예 | 39% | 100% | 100% | 100% | 100% | 크랙 |
수지B:비교예 | 0% | 0% | 1% | 4% | 7% | 크랙 |
수지C:실시예 | 1% | 1% | 3% | 3% | 4% | 크랙 |
수지D:실시예 | 0% | 0% | 0% | 0% | 0% | - |
수지E:실시예 | 0% | 0% | 0% | 0% | 0% | - |
수지A:실시예 | 0% | 0% | 0% | 0% | 0% | - |
Claims (33)
- 발광층이 질화물계 화합물 반도체로 이루어진 LED 칩과, 상기 LED 칩으로부터 발광하는 광의 적어도 일부를 흡수하여 다른 파장의 광을 발광하는 형광 물질이 함유된 투광성 수지를 구비한 발광 다이오드에 있어서,상기 형광 물질은, 소입경 형광 물질과 대입경 형광 물질을 포함하여 이루어지고, 상기 대입경 형광 물질은 상기 투광성 수지에 있어서 상기 LED 칩의 근방에 분포되어 색변환층을 형성하고, 상기 소입경 형광 물질은 상기 투광성 수지에 있어서 상기 색변환층의 외측에 분포되어 있는 것을 특징으로 하는 발광 다이오드.
- 제 1 항에 있어서,상기 대입경 형광 물질은 그 입경이 10㎛∼60㎛의 범위로 조정되는 발광 다이오드.
- 제 1 항 또는 제 2 항에 있어서,상기 소입경 형광 물질은 그 입경이 0.2㎛∼1.5㎛의 범위로 조정되는 발광 다이오드.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,상기 대입경 형광 물질의 빈도 피크 입경치는 상기 소입경 형광 물질의 빈도피크 입경치의 20배∼90배의 범위로 설정된 것을 특징으로 하는 발광 다이오드.
- 발광층이 질화물계 화합물 반도체로 이루어진 LED 칩과, 상기 LED 칩으로부터 발광하는 광의 적어도 일부를 흡수하여 다른 파장의 광을 발광하는 형광 물질이 함유된 투광성 수지를 구비한 발광 다이오드에 있어서,상기 형광 물질은, 부피 기준 입자밀도 분포 곡선에 있어서, 누적치 0.01 vo1%∼10 vo1%의 사이에서 기울기가 제로인 플랫 영역을 갖는 것을 특징으로 하는 발광 다이오드.
- 제 5 항에 있어서,상기 형광 물질은 상기 플랫 영역을 경계로 하는 소입경 형광 물질 및 대입경 형광 물질로 이루어지고, 상기 대입경 형광 물질의 빈도 피크 입경치는 상기 소입경 형광 물질의 빈도 피크 입경치의 20배∼90배인 것을 특징으로 하는 발광 다이오드.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,상기 형광 물질의 중심 입경은 15㎛∼50㎛의 범위인 것을 특징으로 하는 발광 다이오드.
- 제 7 항에 있어서,상기 중심 입경의 빈도치는 20%∼50%의 범위인 것을 특징으로 하는 발광 다이오드.
- 제 1 항 내지 제 8 항 중 어느 한 항에 있어서,상기 투광성 수지는 상기 형광 물질과 함께 확산제를 함유하는 것을 특징으로 하는 발광 다이오드.
- 제 1 항 내지 제 9 항 중 어느 한 항에 있어서,상기 투광성 수지의 발광면이 곡선으로 이루어지는 것을 특징으로 하는 발광 다이오드.
- 음양의 전극을 구성하는 한쌍의 금속 박판이 절연 수지에 의해 전기적으로 분리되도록 접합되어 이루어진 금속 베이스와 수납부를 형성하기 위해 상기 금속 베이스의 한쪽 면의 주위에 접합된 측벽부로 이루어진 패키지와,상기 수납부에 설치된 LED 칩과,상기 LED 칩을 시일링하도록 상기 수납부에 충전된 투광성 수지를 구비한 발광 다이오드에 있어서,상기 투광성 수지는 상기 수납부로부터 그 주위의 측벽부의 상면에 연속하여 형성되어 있고, 그 투광성 수지의 상면은 평탄하고 상기 금속 베이스와 거의 평행하며, 또한 상기 투광성 수지의 외주 측면은 상기 패키지의 외주 측면과 거의 동일면상에 있는 것을 특징으로 하는 발광 다이오드.
- 제 11 항에 있어서,상기 투광성 수지는 필러를 포함하는 발광 다이오드.
- 제 12 항에 있어서,상기 필러는, 상기 LED 칩으로부터 발광하는 광의 일부를 흡수하여 다른 파장을 발광하는 것이 가능한 형광 물질을 포함하는 발광 다이오드.
- 제 13 항에 있어서,상기 형광 물질은 중심 입경이 15㎛∼50㎛의 범위에 설정된 발광 다이오드.
- 수납부에 각각 대응하는 복수의 관통홀이 그룹으로 나뉘어져 형성된 절연 기판과, 상기 각 관통홀에 대응하여 상기 절연 수지에 의해 분리된 부분을 갖는 금속 베이스판을 접합함으로써 복수의 패키지의 집합체로 이루어진 패키지 어셈블리를 제작하는 제1 공정과,상기 관통홀에 의해 형성된 각 패키지의 수납부에 LED 칩을 실장하는 제2 공정과,상기 각 그룹에 대응하여 하나의 개구부가 형성된 마스크를 이용하여 공판 인쇄에 의해 상기 절연성 기판의 상면과 상기 관통홀내에 상기 투광성 수지를 도포하여 경화시키는 제3 공정과,상기 투광성 수지가 형성된 패키지 어셈블리를 각 패키지마다 분할하는 제4 공정을 포함하는 제 1 항에 따른 발광 다이오드를 제조하는 방법.
- 제 15 항에 있어서,상기 공판 인쇄는 감압 및 가압을 반복적으로 행하는 것을 특징으로 하는 발광 다이오드를 제조하는 방법.
- 제 15 항 또는 제 16 항에 있어서,상기 투광성 수지는 필러를 포함하는 발광 다이오드를 제조하는 방법.
- 65 중량% 이상이 지환형 에폭시 수지로 이루어진 에폭시 수지와, 상기 에폭시 수지의 에폭시 당량에 대해 0.005 ∼1.5몰의 일반식(1)로 나타낸 산무수물 또는 일반식(2)로 나타낸 디카르복실산과,(식 중, R1은 탄소수 0∼12의 환식 또는 지방족 알킬 또는 아릴, R2는 탄소수 0∼12의 알킬 또는 아릴)상기 에폭시 수지의 에폭시 당량에 대해 0.0001∼0.01 몰의 양이온 경화제를 포함하는 에폭시 수지 조성물.
- 제 18 항에 있어서,상기 지환형 에폭시 수지가, 시클로헥센에폭시화물유도체, 수소화 비스페놀 A 디글리시딜에테르, 헥사히드로프탈산디글리시딜에스테르로 이루어진 군에서 선택되는 적어도 1종인 에폭시 수지 조성물.
- 제 18 항에 있어서,상기 양이온 경화제가, 방향족 술포늄염, 방향족 디아조늄염, 방향족 요드늄염 및 방향족 셀레늄염으로 이루어진 군에서 선택되는 적어도 1종인 에폭시 수지 조성물.
- 제 18 항에 있어서,산무수물 또는 디카르복실산에 대해 0.1∼5.0 당량의 다가 알콜 또는 그 축중합체를 더욱 포함하는 에폭시 수지 조성물.
- 제 21 항에 있어서,상기 다가 알콜이, 에틸렌글리콜, 디에틸렌글리콜, 트리메틸렌글리콜, 트리에틸렌글리콜, 프로필렌글리콜, 1,4-부탄디올 및 1,6-헥산디올로 이루어진 군에서 선택된 적어도 1종인 에폭시 수지 조성물.
- 제 18 항에 따른 에폭시 수지와 제 18항에 따른 산무수물 또는 디카르복실산을 반응시켜 가교 올리고머를 얻은 후에, 상기 가교 올리고머에 상기 양이온 경화제를 혼합하는 것을 포함하는 제 18 항에 따른 에폭시 수지 조성물의 제조 방법.
- 적어도 한 쌍의 리드 전극과, 상기 리드 전극에 전기적으로 접속된 광반도체 칩과, 상기 광반도체 칩을 시일링하는 몰드 수지를 포함하는 광반도체 소자로서,상기 몰드 수지가, 제 18 항 내지 제 22항 중 어느 한 항에 기재된 에폭시 수지 조성물인 것을 특징으로 하는 광반도체 소자.
- 제 24 항에 있어서,상기 광반도체 소자가, 상기 리드 전극을 형성한 기판 표면에 상기 광반도체 칩을 접합한 표면 실장형인 것을 특징으로 광반도체 소자.
- 제 24 항 또는 제 25 항에 있어서,상기 광반도체 칩이, 적어도 In과 Ga를 함유하는 질화물 반도체로 이루어진발광층을 갖고, 주발광 피크가 550 nm 이하의 발광 다이오드인 광반도체 소자.
- 원료와 플럭스를 혼합하여 소성함으로써 형광 물질을 제조하는 방법에 있어서,상기 소성 공정은, 제1 환원 분위기중에서 소성하는 제1 소성 공정과 제2 환원 분위기중에서 소성하는 제2 소성 공정을 포함하여 이루어지고, 상기 제1 환원 분위기는 상기 제2 환원 분위기보다 약한 환원성 분위기인 것을 특징으로 하는 형광 물질의 제조 방법.
- 제 27 항에 있어서,상기 플럭스는 불화 알루미늄으로 이루어진 형광 물질의 제조 방법.
- 제 27 항 또는 제 28 항에 있어서,상기 플럭스는 불화 바륨과 붕산을 포함하는 형광 물질의 제조 방법.
- 제 29 항에 있어서,상기 플럭스는 액체를 포함하는 형광 물질의 제조 방법.
- 원료와 플럭스를 혼합하여 소성함으로써 형광 물질을 제조하는 방법에 있어서,상기 플럭스는 불화 바륨과 붕산과 액체를 포함하는 것을 특징으로 하는 형광 물질의 제조 방법.
- 제 30 항 또는 제 31 항에 있어서,상기 액체가 물인 형광 물질의 제조 방법.
- 제 27 항 내지 제 32 항 중 어느 한 항에 있어서,상기 원료는 Y2O3, GdO3, Al2O3및 CeO2을 포함하는 형광 물질의 제조 방법.
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KR100973956B1 (ko) * | 2007-03-13 | 2010-08-05 | 샤프 가부시키가이샤 | 반도체 발광 장치, 반도체 발광 장치용 다연 리드프레임 |
US8415681B2 (en) | 2007-03-13 | 2013-04-09 | Sharp Kabushiki Kaisha | Semiconductor light emitting device and multiple lead frame for semiconductor light emitting device |
US9224930B2 (en) | 2007-03-13 | 2015-12-29 | Sharp Kabushiki Kaisha | Semiconductor light emitting device and multiple lead frame for semiconductor light emitting device |
US9666776B2 (en) | 2007-03-13 | 2017-05-30 | Sharp Kabushiki Kaisha | Semiconductor light emitting device and multiple lead frame for semiconductor light emitting device |
KR101309765B1 (ko) * | 2007-03-29 | 2013-09-23 | 서울반도체 주식회사 | 색 편차를 줄인 발광 다이오드 패키지 |
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