http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6312904-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5547f741b25666fc4ae5195cf71a979b |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B11-00 |
| filingDate | 1986-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1bf62f14e9bbdf938756a170a986911 |
| publicationDate | 1988-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6312904-A |
| titleOfInvention | Positioning system |
| abstract | PURPOSE: To position a circuit board stably regardless of its surface state by scanning a couple of positioning marks reciprocally with laser light passed through a slit which varies its opening part according to the specific interval of the marks. n CONSTITUTION: The couple of positioning marks (P) in the same pattern are arranged on the circuit board 6 at the specific interval. The laser output of a Nd:Ya laser (neodymium YA laser)1 for laser working forms its image on the board 6 through a total reflecting mirror 2, the slit 3 which varies the width of a rectangular opening according to the width of the marks P, and a lens 5. Further, the board 6 is mounted on an XY stage 7 and movable in an X axis and a Y axis, and consequently the marks P are scanned reciprocally. Diffracted light from the marks P is detected by a detector 8 through a beam splitter 4. Thus, a control circuit 9 stores a memory with position coordinate data 10 from the stage 7 and the output 11 of the detector 8 corresponding to each position and processes those data after the completion of the scanning to extract only signals from the marks P. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03126532-U http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2513427-Y2 |
| priorityDate | 1986-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.