KR20200097352A - 3차원 인쇄 장치, 시스템 및 방법 - Google Patents
3차원 인쇄 장치, 시스템 및 방법 Download PDFInfo
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Abstract
Description
| 흡수 | 처리 속도 이점 | |||||||||
| 레이저 시스템 | 알루미늄(Al) | 강철(St) | 구리(Cu) | 금(Au) | Ni | 알루미늄(Al) | 강철(St) | 구리(Cu) | 금(Au) | Ni |
| 청색 레이저 | 32% | 67% | 58% | 60% | 65% | 200% | 129% | 967% | 3000% | 144% |
| 섬유 레이저 | 16% | 52% | 6% | 2% | 45% | |||||
도 1은 스캐너들 및 가시 레이저 소스를 사용하는 f-theta 렌즈에 기초하는 3차원(여기서 또한 "3-D" 및 "3D") 인쇄 시스템의 일 실시예를 보여주는 개략도이고,
도 2는 가시 레이저 소스와 함께 선형 트랜슬레이션 스테이지들을 사용하는 3D 인쇄 시스템의 일 실시예를 보여주는 개략도이고,
도 3은 가시 레이저 소스의 일 실시예를 보여주는 개략도이고,
도 4는 TO56 패키지에 패키징된 다중 레이저 다이오드 소스들을 사용하는 모듈러 레이저 플레이트의 일 실시예를 나타내고,
도 5는 레이저 소스들의 2차원 어레이를 형성하기 위해 스택된 다중 모듈러 플레이트들의 일 실시예를 나타내고,
도 6a 및 6b는 단일 모드 출력으로 펌프 파워의 진전(evolution)을 도시적으로 나타내고,
도 7은 프로그램되거나 본 개시의 방법들을 실행하도록 구성된 컴퓨터 시스템을 개략적으로 보여준다.
| 성능 | 현재 IR 레이저 | 청색 레이저 시스템 |
| 파워 | 2000 W | 1000 W |
| 인쇄 속도 | 20 cc/hr | 50 cc/hr |
| 해상도 | 70 μm | 70 μm |
| 빌드 체적 | 9.8" x 9.8" x 11" | 53" x 53" x 55" |
| 표면 마감 | ~ 2Ra | ~ 2Ra |
Claims (48)
- (a) 유도 라만 산란(stimulated Raman scattering)에 의해 가시광의 코히런트 빔(coherent beam)을 생성하는 레이저 광 소스;
(b) 상기 레이저 광 소스와 광학적 소통하는 서브스트레이트(substrate);
(c) 상기 레이저 광 소스의 하류에 있는 스캐닝 모듈, 여기서 상기 스캐닝 모듈은 상기 서브스트레이트에 대하여 가시광의 상기 코히런트 빔의 스캐닝 운동을 발생시키며, 상기 스캐닝 운동은 3차원 물체의 예정된 형상에 대응함; 및
(d) 상기 레이저 광 소스 및 상기 스캐닝 모듈에 작동되게 연결된 컴퓨터 제어 시스템, 여기서 상기 컴퓨터 제어 시스템은, 상기 서브스트레이트로부터 상기 물체를 형성하기 위해, (i) 예정된 방식으로 상기 스캐닝 운동을 제어하고 (ii) 상기 레이저 광 소스의 파워를 조절하도록 프로그램됨;
을 포함하는 3차원 물체를 형성하기 위한 인쇄 시스템. - 제1항에서,
상기 스캐닝 모듈은 (i) 가시광의 상기 코히런트 빔을 이동시키거나, (ii) 가시광의 상기 코히런트 빔에 상대적으로 상기 서브스트레이트를 이동시키는 인쇄 시스템. - 제1항에서,
상기 스캐닝 모듈은 하나 이상의 검류계(galvanometer)를 포함하는 인쇄 시스템. - 제1항에서,
상기 스캐닝 모듈은 가시광의 상기 코히런트 빔에 대하여 상기 서브스트레이트를 이동시키는 적어도 두 개의 직교 선형 트랜슬레이션 스테이지를 포함하는 인쇄 시스템. - 제1항에서,
상기 레이저 광 소스와 상기 서브스트레이트 사이에 대물렌즈를 더 포함하며,
상기 대물렌즈는 가시광의 상기 코히런트 빔을 상기 서브스트레이트 상으로 포커싱하는 인쇄 시스템. - 제5항에서,
상기 대물렌즈는 f-theta 렌즈인 인쇄 시스템. - 제5항에서,
상기 대물렌즈는 가시광의 상기 코히런트 빔으로부터 상기 서브스트레이트 상에 서브미크론 스폿을 발생시키는 단초점 길이 렌즈인 인쇄 시스템. - 제1항에서,
(i) 상기 서스브트레이트를 가시광의 상기 코히런트 빔의 방향에 일반적으로 평행한 방향을 따라서 이동시키거나, (ii) 상기 레이저 광 소스를 포함하는 어셈블리를 가시광의 상기 코히런트 빔의 방향에 일반적으로 평행한 방향을 따라서 이동시키는 수직 트랜슬레이터를 더 포함하는 인쇄 시스템. - 제8항에서,
상기 수직 트랜슬레이터는 상기 서브스트레이트 또는 상기 어셈블리를 적어도 약 10 나노미터의 증분으로 이동시키는 인쇄 시스템. - 제1항에서,
상기 레이저 광 소스는 하나 이상의 가시 레이저 다이오드를 포함하는 인쇄 시스템. - 제10항에서,
상기 하나 이상의 가시 레이저 다이오드 중 개개의 다이오드는 플레이트에 결합된 개개의 레이저 칩인 인쇄 시스템. - 제1항에서,
상기 레이저 광 소스는 레이저 다이오드들의 세트들을 포함하며, 여기서 각각의 세트는 복수의 레이저 다이오드를 포함하고, 각각의 세트는 상기 코히런트 광 빔에 포함되는 하나 이상의 코히런트 광 빔을 발생시키는 인쇄 시스템. - 제12항에서,
상기 복수의 레이저 다이오드의 각 세트로부터의 광 빔들을 정렬하는 시준 렌즈를 더 포함하는 인쇄 시스템. - 제13항에서,
상기 시준 렌즈로부터의 광 빔들의 발산을 대칭으로 만들기 위한 원형화 광학을 더 포함하는 인쇄 시스템. - 제12항에서,
레이저 다이오드들의 상기 세트들로부터의 광 빔들 사이의 죽은 공간을 줄이거나 최소화하기 위해 상기 광 빔들을 압축하는 압축 광학 요소를 더 포함하는 인쇄 시스템. - 제1항에서,
가시광의 상기 코히런트 빔은 코히런트 단일 모드 광인 인쇄 시스템. - 제1항에서,
상기 레이저 광 소스는 광 섬유를 포함하고, 상기 레이저 광 소스는 킬로미터당 약 50 데시벨(dB/km)보다 작은 레일리 손실(Rayleigh loss)로 상기 광섬유에서 가시광의 상기 코히런트 빔을 발생시키는 인쇄 시스템. - 제1항에서,
상기 레이저 광 소스는 적어도 하나의 레이저 다이오드 및 상기 레이저 다이오드와 광학적 소통하는 섬유를 포함하는 인쇄 시스템. - 제18항에서,
상기 섬유는 (i) 실질적으로 단일 모드인 중앙 코어, (ii) 상기 레이저 다이오드 어레이로부터 출력된 가시광의 복수의 빔을 캡처하며 상기 중앙 코어보다 큰 직경의 클래딩, 그리고 (iii) 상기 레이저 다이오드 어레이에 의해 출력된 가시광의 상기 빔들을 상기 섬유를 따라서 안내하는 외곽 클래딩을 포함하는 인쇄 시스템. - 제19항에서,
상기 중앙 코어 및 상기 외곽 클래딩은 유도 라만 산란을 통해 상기 중앙 코어에서 이득을 생성하기 위해 가시광의 상기 복수의 빔이 상기 중앙 코어를 가로지르도록 배열되어 있는 인쇄 시스템. - 제1항에서,
상기 물체는 마이크로-전기적-기계적(MEMS) 장치의 구성요소인 인쇄 시스템. - (a) 킬로미터당 약 50 데시벨(dB/km)보다 작은 레일리 손실로 가시광의 코히런트 빔을 출력하는 광섬유를 포함하는 레이저 광 소스;
(b) 상기 레이저 광 소스와 광학적 소통하는 서브스트레이트;
(c) 상기 레이저 광 소스의 하류에 있는 스캐닝 모듈, 여기서 상기 스캐닝 모듈은 상기 서브스트레이트에 대하여 가시광의 상기 빔의 예정된 스캐닝 운동을 발생시키며, 예정된 스캐닝 운동은 상기 3차원 물체의 형상에 대응함; 및
(d) 상기 레이저 광 소스 및 상기 스캐닝 모듈에 작동되게 연결된 컴퓨터 제어 시스템, 여기서 상기 컴퓨터 제어 시스템은, 상기 서브스트레이트로부터 상기 물체를 형성하기 위해, (i) 예정된 방식으로 상기 스캐닝 운동을 제어하고 (ii) 상기 레이저 광 소스의 파워를 조절하도록 프로그램됨;
을 포함하는 3차원 물체를 형성하기 위한 인쇄 시스템. - 제22항에서,
상기 스캐닝 모듈은 (i) 가시광의 상기 코히런트 빔을 이동시키거나, (ii) 가시광의 상기 코히런트 빔에 상대적으로 상기 서브스트레이트를 이동시키는 인쇄 시스템. - 제22항에서,
상기 스캐닝 모듈은 하나 이상의 검류계를 포함하는 인쇄 시스템. - 제22항에서,
상기 스캐닝 모듈은 가시광의 상기 코히런트 빔에 대하여 상기 서브스트레이트를 이동시키는 적어도 두 개의 직교 선형 트랜슬레이션 스테이지를 포함하는 인쇄 시스템. - 제22항에서,
상기 레이저 광 소스와 상기 서브스트레이트 사이에 대물렌즈를 더 포함하며,
상기 대물렌즈는 가시광의 상기 코히런트 빔을 상기 서브스트레이트 상으로 포커싱하는 인쇄 시스템. - 제26항에서,
상기 대물렌즈는 f-theta 렌즈인 인쇄 시스템. - 제26항에서,
상기 대물렌즈는 가시광의 상기 코히런트 빔으로부터 상기 서브스트레이트 상에 서브미크론 스폿을 발생시키는 단초점 길이 렌즈인 인쇄 시스템. - 제22항에서,
(i) 상기 서스브트레이트를 가시광의 상기 코히런트 빔의 방향에 일반적으로 평행한 방향을 따라서 이동시키거나, (ii) 상기 레이저 광 소스를 포함하는 어셈블리를 가시광의 상기 코히런트 빔의 방향에 일반적으로 평행한 방향을 따라서 이동시키는 수직 트랜슬레이터를 더 포함하는 인쇄 시스템. - 제29항에서,
상기 수직 트랜슬레이터는 상기 서브스트레이트 또는 상기 어셈블리를 적어도 약 10 나노미터의 증분으로 이동시키는 인쇄 시스템. - 제22항에서,
상기 레이저 광 소스는 하나 이상의 가시 레이저 다이오드를 포함하는 인쇄 시스템. - 제31항에서,
상기 하나 이상의 가시 레이저 다이오드 중 개개의 다이오드는 플레이트에 결합된 개개의 레이저 칩인 인쇄 시스템. - 제22항에서,
상기 레이저 광 소스는 레이저 다이오드들의 세트들을 포함하며, 여기서 각각의 세트는 복수의 레이저 다이오드를 포함하고, 각각의 세트는 상기 코히런트 광 빔에 포함되는 하나 이상의 코히런트 광 빔을 발생시키는 인쇄 시스템. - 제33항에서,
상기 복수의 레이저 다이오드의 각 세트로부터의 광 빔들을 정렬하는 시준 렌즈를 더 포함하는 인쇄 시스템. - 제34항에서,
상기 시준 렌즈로부터의 광 빔들의 발산을 대칭으로 만들기 위한 원형화 광학을 더 포함하는 인쇄 시스템. - 제33항에서,
레이저 다이오드들의 상기 세트들로부터의 광 빔들 사이의 죽은 공간을 줄이거나 최소화하기 위해 상기 광 빔들을 압축하는 압축 광학 요소를 더 포함하는 인쇄 시스템. - 제22항에서,
가시광의 상기 코히런트 빔은 코히런트 단일 모드 광인 인쇄 시스템. - 제22항에서,
상기 레이저 광 소스는 적어도 하나의 레이저 다이오드 및 상기 레이저 다이오드와 광학적 소통하는 섬유를 포함하는 인쇄 시스템. - 제38항에서,
상기 섬유는 (i) 실질적으로 단일 모드인 중앙 코어, (ii) 상기 레이저 다이오드 어레이들로부터 출력된 가시광의 복수의 빔을 캡쳐하며 상기 중앙 코어보다 큰 직경의 클래딩, 그리고 (iii) 상기 레이저 다이오드 어레이에 의해 출력된 가시광의 상기 코히런트 빔을 상기 섬유를 따라서 안내하는 외곽 클래딩을 포함하는 인쇄 시스템. - (a) 레이저 광 소스 및 상기 레이저 광 소스의 광학적으로 하류에 스캐닝 모듈을 제공하는 단계;
(b) 상기 레이저 광 소스를 사용하여, 유도 라만 산란에 의한 가시광의 코히런트 빔을 발생시키는 단계;
(c) 가시광의 상기 코히런트 빔을 상기 레이저 광 소스와 광학적 소통하는 서브스트레이트로 향하게 하는 단계;
(d) 상기 서브스트레이트에 또는 상기 서브스트레이트로부터 3차원 물체의 예정된 형상의 적어도 일부분에 대응하는 피처를 발생시키는 단계;
(e) 상기 스캐닝 모듈을 사용하여, 상기 서브스트레이트에 대하여 가시광의 상기 코히런트 빔의 스캐닝 운동을 발생시키는 단계, 여기서 상기 스캐닝 운동은 상기 3차원 물체의 예정된 형상에 대응함; 및
(f) 상기 서브스트레이트를 가시광의 상기 코히런트 빔에 일반적으로 평행한 방향을 따라서 상기 레이저 광 소스에 상대적으로 이동시키는 단계;
를 포함하는 3차원 물체 형성 방법. - 제40항에서,
상기 (e) 단계는 상기 레이저 광 소스의 파워를 조절하는 단계를 포함하는 3차원 물체 형성 방법. - 제41항에서,
상기 파워는 적어도 약 50 kHz의 주파수로 조절되는 3차원 물체 형성 방법. - 제40항에서,
상기 스캐닝 운동을 메모리에 프로그래밍하는 단계를 더 포함하며,
상기 스캐닝 운동은 상기 물체의 3차원 형상으로부터 결정되는 3차원 물체 형성 방법. - 제40항에서,
상기 피처는 투과 전자 현미경에 의해 측정되는 약 0.1 나노미터(nm)로부터 50 nm의 표면 거칠기를 가지는 3차원 물체 형성 방법. - 청구항 40에서,
상기 단계 (f)에서, 상기 서브스트레이트는 적어도 약 10 나노미터의 거리로 이동되는 3차원 물체 형성 방법. - 제40항에서,
상기 단계 (f)에서, (i) 상기 서브스트레이트는 가시광의 상기 코히런트 빔의 방향에 일반적으로 평행한 방향을 따라서 이동되거나, (ii) 상기 레이저 광 소스를 포함하는 어셈블리가 가시광의 상기 코히런트 빔의 방향에 일반적으로 평행한 방향을 따라서 이동되는 3차원 물체 형성 방법. - 제40항에서,
상기 서브스트레이트는 파우더인 3차원 물체 형성 방법. - 청구항 47에서,
상기 단계 (d) 이후에 상기 파우더를 보충하는 단계를 더 포함하는 3차원 물체 형성 방법.
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| KR102143220B1 (ko) | 2020-08-11 |
| CA2910559C (en) | 2021-06-01 |
| RU2641945C2 (ru) | 2018-01-23 |
| JP2018095970A (ja) | 2018-06-21 |
| JP2016531197A (ja) | 2016-10-06 |
| JP2022172172A (ja) | 2022-11-15 |
| EP2991799B1 (en) | 2018-04-04 |
| JP6648170B2 (ja) | 2020-02-14 |
| KR20160003778A (ko) | 2016-01-11 |
| RU2015151016A (ru) | 2017-06-01 |
| CN105189021A (zh) | 2015-12-23 |
| WO2014179345A1 (en) | 2014-11-06 |
| JP7075274B2 (ja) | 2022-05-25 |
| EP3363579B1 (en) | 2021-11-17 |
| EP2991799A4 (en) | 2016-10-26 |
| US20160067780A1 (en) | 2016-03-10 |
| EP2991799A1 (en) | 2016-03-09 |
| CA2910559A1 (en) | 2014-11-06 |
| US10940536B2 (en) | 2021-03-09 |
| CN105189021B (zh) | 2018-05-15 |
| ES2666379T3 (es) | 2018-05-04 |
| KR102340906B1 (ko) | 2021-12-21 |
| JP6334682B2 (ja) | 2018-05-30 |
| JP7155205B2 (ja) | 2022-10-18 |
| EP3363579A1 (en) | 2018-08-22 |
| JP2020196952A (ja) | 2020-12-10 |
| JP2018150625A (ja) | 2018-09-27 |
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