David E. Weldon
27Patents
15h-index
33Co-inventors
81Inventor score
Filing activity: Aug 8, 1983 → Jul 6, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5692947A | Linear polisher and method for semiconductor wafer planarization | Performing Operations; Transporting | 189 | Expired |
| US5558568A | Wafer polishing machine with fluid bearings | Performing Operations; Transporting | 153 | Expired |
| US5593344A | Wafer polishing machine with fluid bearings and drive systems | Performing Operations; Transporting | 127 | Expired |
| US5803799A | Wafer polishing head | Performing Operations; Transporting | 119 | Expired |
| US5575707A | Polishing pad cluster for polishing a semiconductor wafer | Performing Operations; Transporting | 109 | Expired |
| US5800248A | Control of chemical-mechanical polishing rate across a substrate surface | Performing Operations; Transporting | 101 | Expired |
| US6000997A | Temperature regulation in a CMP process | Performing Operations; Transporting | 56 | Expired |
| US6726429B2 | Local store for a wafer processing station | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5980368A | Polishing tool having a sealed fluid chamber for support of polishing pad | Performing Operations; Transporting | 40 | Expired |
| US6267655A | Retaining ring for wafer polishing | Performing Operations; Transporting | 26 | Expired |
| US6062959A | Polishing system including a hydrostatic fluid bearing support | Electricity | 26 | Expired |
| US5571044A | Wafer holder for semiconductor wafer polishing machine | Performing Operations; Transporting | 24 | Expired |
| US6315857A | Polishing pad shaping and patterning | Performing Operations; Transporting | 19 | Expired |
| US6042457A | Conditioner assembly for a chemical mechanical polishing apparatus | Performing Operations; Transporting | 19 | Expired |
| US6126527A | Seal for polishing belt center support having a single movable sealed cavity | Performing Operations; Transporting | 16 | Expired |
| US4482149A | Arm exercising device | Human Necessities | 14 | Expired |
| US6231427A | Linear polisher and method for semiconductor wafer planarization | Performing Operations; Transporting | 12 | Expired |
| US6086456A | Polishing method using a hydrostatic fluid bearing support having fluctuating fluid flow | Electricity | 12 | Expired |
| US6159083A | Polishing head for a chemical mechanical polishing apparatus | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6875085B2 | Polishing system including a hydrostatic fluid bearing support | Performing Operations; Transporting | 3 | Expired |
| US6244945A | Polishing system including a hydrostatic fluid bearing support | Electricity | 2 | Expired |
| US10674123B2 | Large display systems with screen tension adjustability | Electricity | 1 | Active |
| US10063817B1 | Large display systems with screen tension adjustability | Electricity | 1 | Active |
| US6454641B1 | Hydrostatic fluid bearing support with adjustable inlet heights | Electricity | 1 | Expired |
| US6322429A | Conditioner assembly and a conditioner back support for a chemical mechanical polishing apparatus | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.