Method of aligning quadrate wafer in first photolithography process
US-9791790-B2 · Oct 17, 2017 · US
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Kong Qingfeng patents
Kong Qingfeng is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Kong Qingfeng |
| Total patents | 3 |
| First publication | Jun 16, 2016 |
| Latest publication | Oct 17, 2017 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Inst Semiconductors Cas | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G03F9/7084 | 2 |
| G03F1/42 | 2 |
| H10W46/201 | 1 |
| H10P74/23 | 1 |
| C30B29/66 | 1 |