Abstract:
PROBLEM TO BE SOLVED: To provide a cutting device for a board which increases the productivity by preventing errors in a scribing process by the vibrations of belt conveyors and conveyor support beams from occurring, and to provide a cutting method for the board using the cutting device. SOLUTION: This cutting device for the board is constituted by including first and second belt conveyors which load and move the board, a scribing means, and a board supporting means. In this case, the scribing means is constituted at a location between the first and second belt conveyors with a specified interval, and executes scribing along a cutting planned line when the board has reached. The board supporting means is constituted in the same direction as the scribing direction of the board at a location between the first and second belt conveyors, and supports the board. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PURPOSE:To take out wafers simply quickly without attaching any flaws and saw marks to the section of a member by adsorbing wafers one by one after the completion of cutting off the member under the condition of a wire included in a fixed bed to cut off the member in the fixed bed section and take out the wafer. CONSTITUTION:An adsorbing board 4 and a spray nozzle 5 are brought close to a wire saw when a member 1 is cut off and a wire 3 is included in a fixed bed 2, and while the adsorbing board 4 adsorbs a first wafer 1-1, washing liquid or air is sprayed between the first wafer and the adjacent one 1-2 by a spray nozzle 5 while the wafer 1-1 is cut off from a feeding portion A of the fixed bed 2. Thus, when the first wafer 1-1 is removed, the adsorbing board 4 is again adapted to bear against the wafer 1-2 and the adjacent one 1-3 while a second wafer saw 2 is taken out. Similar procedure are repeated. Thus, since any saw marks and flaws are not produced on the surface of wafer and the operation can be carried out by leaving the fixed bed as it is, the operation can be carried out efficiently compared with prior one.
Abstract:
PURPOSE:To prevent the cracking of a wafer by forming a groove in predetermined depth to an element forming surface prior to the back removing processing of the semiconductor wafer, sticking a first single-side adhesive sheet in a desired manner and reinforcing the wafer. CONSTITUTION:Grooves 1a are cut crosswise to an element forming surface in a semiconductor wafer 1, to which elements are shaped completely, to a cell shape, and the wafer is brought to the state of a half-cut. A single-side adhesive sheet 2 is stuck onto the element forming surface in the semiconductor wafer 1. The back of the wafer 1 is ground extending over the whole surface by a diamond wheel 3, etc., and a second single-side adhesive sheet 5 is stuck onto the lower surface of an adhesive layer 4 for die bonding while the first single-side adhesive sheet 2 on the upper surface side is peeled. The single-side adhesive sheet 5 is heated in the direction of the arrow (f) and extended, and the grooves 1a among each chip 1A, 1B,...1E are widened, thus easily picking up the chips in the next die bonding process.
Abstract:
본 발명에 따른 사파이어 표면의 마이크로 밀링 가공방법은, 수직 머시닝 센터에서, 공구의 축선과 사파이어 시료의 가공 표면 사이에 일정한 가공 경사각을 구비하는 조건 하에, PCD 다중톱탈 볼엔드밀 공구를 이용하여 일정한 주축 회전속도, 피딩 속도와 절삭 깊이 조건 하에 사파이어 표면에 대해 마이크로 밀링 가공을 실시함으로써 사파이어 표면 재료를 제거하는 것을 특징으로 한다. PCD 다중톱날 볼엔드밀 공구는 PCD 다중톱날 볼엔드밀 비트와 경질 합금 공구 바를 용접하여 제작된다. PCD 볼엔드밀 표면은 원주방향을 따라 복수의 등거리 직선 그루브가 분포되고, 축방향을 따라 1개의 나선 그루브가 분포되며; 상기 그루브를 통해 PCD 공구 표면이 복수의 절삭 가공 톱날로 분할된다. 본 발명은 사파이어에 대해 비교적 큰 절삭 깊이로 그루브 및 곡면 가공을 실시할 수 있어, 가공 효율 및 가공 과정의 안정성이 현저히 향상될 수 있고, 사파이어 가공 표면에 뚜렷한 취성 단열과 재료의 탈락 등과 같은 현상이 발견되지 않으며, 가공 표면의 품질이 양호하다.