KR20210084424A - 열전도성 시트 및 그의 제조 방법, 열전도성 시트의 실장 방법 - Google Patents
열전도성 시트 및 그의 제조 방법, 열전도성 시트의 실장 방법 Download PDFInfo
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Abstract
적어도 고분자 매트릭스 성분과 열전도성 충전제를 포함하는 열전도성 수지 조성물이 경화되어 이루어지는 시트 본체(2)를 갖고, 고분자 매트릭스 성분에 대한 열전도성 충전제의 체적 비율이, 1.00 내지 1.70이고, 열전도성 충전제가, 섬유상 열전도성 충전제(10)를 포함하고, 섬유상 열전도성 충전제(10)는, 시트 본체(2)의 표면으로부터 돌출됨과 함께, 고분자 매트릭스 성분의 미경화 성분으로 피복되어 있다.
Description
도 2는, 열전도성 성형체를 슬라이스하는 공정의 일례를 도시하는 사시도이다.
도 3은, 박리 필름을 첩부한 열전도성 시트를 프레스하는 공정을 도시하는 단면도이다.
도 4는, 반도체 장치의 일례를 도시하는 단면도이다.
도 5는, 종래의 열전도성 시트를 도시하는 단면도이다.
Claims (13)
- 적어도 고분자 매트릭스 성분과 열전도성 충전제를 포함하는 열전도성 수지 조성물이 경화되어 이루어지는 시트 본체를 갖고,
상기 고분자 매트릭스 성분에 대한 상기 열전도성 충전제의 체적 비율이, 1.00 내지 1.70이고,
상기 열전도성 충전제가, 섬유상 열전도성 충전제를 포함하고,
상기 섬유상 열전도성 충전제가, 상기 시트 본체의 표면으로부터 돌출됨과 함께, 상기 고분자 매트릭스 성분의 미경화 성분으로 피복되어 이루어지는 열전도성 시트. - 제1항에 있어서, 상기 열전도성 충전제는, 상기 시트 본체의 표면으로부터의 돌출 길이가 50㎛보다도 긴 열전도성 시트.
- 제1항에 있어서, 상기 열전도성 충전제는, 상기 시트 본체의 두께 방향으로 배향되어 있는 열전도성 시트.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 듀로미터 경도 규격 ASTM-D2240에 있어서의 타입 OO의 값이 15 내지 40인 열전도성 시트.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 시트 본체를 0.8kgf/㎠의 하중으로 압축하고, 당해 하중을 해방한 후에, 상기 시트 본체의 두께가 압축 전의 90% 이상으로 회복되는 열전도성 시트.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 시트 본체에 하중을 인가하여 압축하고, 당해 하중을 해방한 후에, 상기 시트 본체의 하중의 인가 전후에 있어서의 표면 조도 Rz의 차가 8 이하인 열전도성 시트.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 0.3kgf/㎠의 하중을 인가했을 때에 있어서의 열저항이 1.9℃·㎠/W 이하인 열전도성 시트.
- 고분자 매트릭스 성분에 섬유상의 열전도성 충전제가 함유된 열전도성 수지 조성물을 소정의 형상으로 성형하여 경화시켜, 열전도성 성형체를 형성하는 공정과,
상기 열전도성 성형체를 시트상으로 슬라이스하여, 열전도성 시트를 형성하는 공정을 갖고,
상기 고분자 매트릭스 성분에 대한 상기 열전도성 충전제의 체적 비율이, 1.00 내지 1.70이며,
상기 열전도성 충전제가, 섬유상 열전도성 충전제를 포함하고,
상기 섬유상의 열전도성 충전제는, 상기 시트 본체의 표면으로부터 돌출됨과 함께, 상기 고분자 매트릭스 성분의 미경화 성분으로 피복되어 있는
열전도성 시트의 제조 방법. - 제8항에 있어서, 상기 열전도성 시트를 프레스함으로써, 상기 고분자 매트릭스 성분의 미경화 성분을 배어 나오게 하는 열전도성 시트의 제조 방법.
- 적어도 고분자 매트릭스 성분과 열전도성 충전제를 포함하는 열전도성 수지 조성물이 경화되어 이루어지는 시트 본체를 갖고,
상기 열전도성 충전제의 함유량이, 50 내지 63체적%이고,
상기 열전도성 충전제가, 섬유상 열전도성 충전제를 포함하고,
상기 열전도성 충전제에 있어서의 상기 섬유상 열전도성 충전제의 체적 비율이, 0.20 내지 0.42이고,
상기 섬유상 열전도성 충전제가, 상기 시트 본체의 표면으로부터 돌출됨과 함께, 상기 고분자 매트릭스 성분의 미경화 성분으로 피복되어 이루어지는 열전도성 시트. - 고분자 매트릭스 성분에 섬유상의 열전도성 충전제가 함유된 열전도성 수지 조성물을 소정의 형상으로 성형하여 경화시켜, 열전도성 성형체를 형성하는 공정과,
상기 열전도성 성형체를 시트상으로 슬라이스하여, 열전도성 시트를 형성하는 공정을 갖고,
상기 열전도성 충전제의 함유량이, 50 내지 63체적%이고,
상기 열전도성 충전제가, 섬유상 열전도성 충전제를 포함하고,
상기 열전도성 충전제에 있어서의 상기 섬유상 열전도성 충전제의 체적 비율이, 0.20 내지 0.42이고,
상기 섬유상의 열전도성 충전제는, 상기 시트 본체의 표면으로부터 돌출됨과 함께, 상기 고분자 매트릭스 성분의 미경화 성분으로 피복되어 있는
열전도성 시트의 제조 방법. - 전자 부품 상에 적재하고, 방열 부재와의 사이에 협지하는 열전도성 시트의 실장 방법에 있어서,
상기 전자 부품에 적재할 때에 상기 열전도성 시트에 하중을 인가시킴으로써 태크성을 발현시켜서 전자 부품에 첩부하고,
상기 열전도성 시트를 다시 붙일 때에는, 하중을 해방하고, 상기 전자 부품으로부터 박리하고, 재차, 상기 전자 부품 상에 첩부하는 공정을 갖고,
상기 열전도성 시트는,
적어도 고분자 매트릭스 성분과 섬유상의 열전도성 충전제를 포함하는 열전도성 수지 조성물이 경화되어 이루어지는 시트 본체를 갖고,
상기 고분자 매트릭스 성분에 대한 상기 열전도성 충전제의 체적 비율이, 1.00 내지 1.70이고,
상기 열전도성 충전제가, 섬유상 열전도성 충전제를 포함하고,
상기 섬유상의 열전도성 충전제는, 상기 시트 본체의 표면으로부터 돌출됨과 함께, 상기 고분자 매트릭스 성분의 미경화 성분으로 피복되어 있는
열전도성 시트의 실장 방법. - 전자 부품 상에 적재하고, 방열 부재와의 사이에 협지하는 열전도성 시트의 실장 방법에 있어서,
상기 전자 부품에 적재할 때에 상기 열전도성 시트에 하중을 인가시킴으로써 태크성을 발현시켜서 전자 부품에 첩부하고,
상기 열전도성 시트를 다시 붙일 때에는, 하중을 해방하고, 상기 전자 부품으로부터 박리하고, 재차, 상기 전자 부품 상에 첩부하는 공정을 갖고,
상기 열전도성 시트는,
적어도 고분자 매트릭스 성분과 섬유상의 열전도성 충전제를 포함하는 열전도성 수지 조성물이 경화되어 이루어지는 시트 본체를 갖고,
상기 열전도성 충전제의 함유량이, 50 내지 63체적%이고,
상기 열전도성 충전제가, 섬유상 열전도성 충전제를 포함하고,
상기 열전도성 충전제에 있어서의 상기 섬유상 열전도성 충전제의 체적 비율이, 0.20 내지 0.42이고,
상기 섬유상의 열전도성 충전제는, 상기 시트 본체의 표면으로부터 돌출됨과 함께, 상기 고분자 매트릭스 성분의 미경화 성분으로 피복되어 있는
열전도성 시트의 실장 방법.
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