http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H06268356-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8cbccaf92647012f596e1c701986b85d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F11-00 |
| filingDate | 1993-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f949452954bcd08ede3648c717abd753 |
| publicationDate | 1994-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H06268356-A |
| titleOfInvention | Method of using preflux and method of manufacturing printed wiring board |
| abstract | (57) [Summary] [Purpose] A method for treating heat-resistant preflux that prevents rust on the metal surface of printed wiring boards and improves the wettability, spreadability of low melting point cream solder, and solderability after reflow. The provision and the remarkable effect of improving the reflow soldering property for surface-mounting the electronic component on the printed wiring board can be obtained, and by these, the mounting density of the printed wiring board can be improved. [Structure] The method of using the preflux of the present invention is as follows. A compound represented by (Chemical formula 1) to (Chemical formula 10) and an organic acid, By applying a pre-flux containing an inorganic acid, a metal compound, ion-exchanged water and the like, a chemical conversion film having excellent rust prevention, moisture resistance, heat resistance and chemical resistance is formed. Also, By applying a rosin-based or resin-based pre-flux, a coating film having excellent wettability and spreadability of low melting point cream solder, solderability after reflow, and wettability is formed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8389507-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008071574-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10487406-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10329672-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10428454-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008047928-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7858653-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017503920-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7652055-B2 |
| priorityDate | 1993-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 137.