Abstract:
PURPOSE: High density plasma chemical vapor deposition(CVD) equipment capable of controlling generation of particles on the edge of a semiconductor wafer is provided to control a defect on the edge of a semiconductor wafer due to plasma and reaction gas by installing a clamp between the wafer and the plasma so that the clamp overlaps the edge of the wafer. CONSTITUTION: An inner space of a predetermined size is defined by the outer wall(310) of a chamber. The semiconductor wafer(200) is placed on a susceptor(320) in the chamber. A gas supply unit is so disposed to confront the upper surface of the semiconductor wafer. The clamp(360) is so disposed between the plasma on the semiconductor wafer and the semiconductor wafer to overlap the edge of the semiconductor wafer.
Abstract:
본 발명은 고밀도 플라즈마 절연막을 형성시 플라즈마 충격에 의한 금속이온의 발생을 방지할 수 있는 고밀도 플라즈마 절연막의 형성방법을 제공한다. 그 방법은 반응챔버 내의 반도체 기판 상으로 공급된 반응가스를 리모트 플라즈마 발생기를 이용하여 플라즈마화시키고, 플라즈마화된 반응가스를 반도체 기판에 접촉시켜 제1 절연막을 형성한 다음, 상기 반응챔버 내로 공급된 스퍼터용 식각가스를 상기 리모트 플라즈마 발생기를 이용하여 플라즈마화 시킨 후 상기 반도체 기판의 표면을 스퍼터 식각하여 상기 제1 절연막을 소정 두께만큼 제거한다. 고밀도 플라즈마, 리모트, 절연막, 스퍼터 식각
Abstract:
PURPOSE: A method for forming an isolation region of a semiconductor device is provided to shorten an interval of time for forming the isolation region, by reducing processes for forming a trench oxide layer and annealing an insulation material to one process. CONSTITUTION: A silicon oxide layer(120) is formed on a semiconductor substrate(100). A predetermined portion of the silicon oxide layer and the semiconductor substrate under the predetermined portion are continuously etched to form a trench. An insulation material(160) is filled in the trench. The semiconductor substrate of the sidewall and bottom of the trench filled with the insulation material is oxidized to form a trench oxide layer(180) on the sidewall and bottom of the trench. The insulation material and the silicon oxide layer remaining on the semiconductor substrate are continuously polished by a mechanical polishing method until the surface of the semiconductor substrate is exposed, so that the isolation region is formed.