Umar M. Ahmad
18Patents
11h-index
33Co-inventors
72Inventor score
Filing activity: Jan 10, 1978 → Jan 7, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5209817A | Selective plating method for forming integral via and wiring layers | Electricity | 212 | Expired |
| US5790384A | Bare die multiple dies for direct attach | Electricity | 130 | Expired |
| US5470693A | Method of forming patterned polyimide films | Electricity | 105 | Expired |
| US5324205A | Array of pinless connectors and a carrier therefor | Electricity | 80 | Expired |
| US5436412A | Interconnect structure having improved metallization | Electricity | 75 | Expired |
| US5818984A | Optoelectronic interconnection of integrated circuits | Electricity | 72 | Expired |
| US6147506A | Wafer test fixture using a biasing bladder and methodology | Physics | 31 | Expired |
| US5938856A | Process of removing flux residue from microelectronic components | Electricity | 23 | Expired |
| US5374503A | Method of forming patterned polyimide films | Electricity | 22 | Expired |
| US6652665B1 | Method of removing silicone polymer deposits from electronic components | Electricity | 21 | Expired |
| US5427983A | Process for corrosion free multi-layer metal conductors | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4259296A | Recovery of chromium from scrap | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4397964A | Process using fluidized bed catalyst | Chemistry; Metallurgy | 4 | Expired |
| US4196100A | Catalyst useful for methanation and preparation thereof | Chemistry; Metallurgy | 3 | Expired |
| US6221269A | Method of etching molybdenum metal from substrates | Electricity | 2 | Expired |
| US6426007B1 | Removal of soluble metals in waste water from aqueous cleaning and etching processes | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6203926A | Corrosion-free multi-layer conductor | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6955777B2 | Method of forming a plate for dispensing chemicals | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.