摘要:
The present invention is accomplished by providing a catheter manifold (15) having a manifold catheter lumen (115) extending longitudinally therethrough plus a rotationally symmetrical, conically tapering, elastomeric distal seal (65) for gripping the catheter shaft (70), the proximal end of the distal seal (65) having a smaller diameter than the distal end, the distal end of the manifold catheter lumen (115) being conically tapered and sized for a friction fit with the distal seal (65) when the distal seal (65) is inserted into the distal end of the manifold catheter lumen (115), the distal seal (65) having a longitudinally extending distal seal catheter lumen (120). In addition, the catheter manifold (15) has a rotationally symmetrical, conically tapering, elastomeric proximal seal (55) for gripping the guidewire shaft (135), the proximal end of the proximal seal (55) having a larger diameter than the distal end, the proximal end of the manifold catheter lumen (115) having a conical taper sized for a friction fit with the proximal seal (55 ) when the proximal seal (55) is inserted into the proximal end of the manifold catheter lumen (115), the proximal seal (55) having a longitudinally extending proximal seal catheter lumen (110). The ratio of the proximal seal (55) length to the proximal seal (55) major diameter is about 2 to 1. The ratio of the distal seal (65) length to the distal seal (65) major diameter is about 2 to 1. The ratio of the distal seal (65) minor diameter to the distal seal (65) major diameter is about 1 to 1.5 and the ratio of the proximal seal (55) minor diameter to the proximal seal (55) major diameter is about 1 to 1.5. The proximal (55) and distal seals (65) are made of a 30-50 Shore A USP Class VI elastomer material. In another embodiment, conventional sealing such as threaded parts, adhesive or a Tuohy-Borst connector can be substituted for either of applicant's compression seals.
摘要:
A method and apparatus for improving uniformity of the rate of removal of material from the surface of a semiconductor substrate by chemical mechanical polishing. In accordance with the invention, the semiconductor substrate is subjected to a combination of polishing motions, including orbital motion, and at least one additional polishing motion selected from rotational, oscillating, sweeping, and linear polishing motions. The invention also provides an improved method for conditioning polishing pads to provide more uniform conditioning and to extend their useful life span.
摘要:
Planarization of metal interconnections in semiconductor wafer manufacturing is performed by providing relative motion between a bipolar electrode assembly scanned and a single metallized surface of a semiconductor wafer without necessary physical contact with the wafer or direct electrical connection thereto.
摘要:
A method and apparatus for improving uniformity of the rate of removal of material from the surface of a semiconductor substrate by chemical mechanical polishing. In accordance with the invention, the semiconductor substrate is subjected to a combination of polishing motions, including orbital motion, and at least one additional polishing motion selected from rotational, oscillating, sweeping, and linear polishing motions. The invention also provides an improved method for conditioning polishing pads to provide more uniform conditioning and to extend their useful life span.
摘要:
Plating of metal interconnections in semiconductor wafer manufacturing is performed by providing relative motion between a bipolar electrode assembly a single metallized surface of a semiconductor wafer without necessary physical contact with the wafer or direct electrical connection thereto.
摘要:
Simultaneous non-contact plating and planarizing of copper interconnections in semiconductor wafer manufacturing is performed by providing relative motion between a bipolar electrode and a metallized surface of a semiconductor wafer without necessary physical contact with the wafer or direct electrical connection thereto.