http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01302844-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-02 |
| filingDate | 1988-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20e856f6096c211e6dbe48557b055e34 |
| publicationDate | 1989-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01302844-A |
| titleOfInvention | Manufacture of package cover |
| abstract | PURPOSE: To obtain a package cover whose resistance to a salt-spray test is large, whose corrosion resistance is good and whose thermal resistance and solderability are excellent by a method wherein the surface of a cover made of a metal such as an Fe-Ni alloy or the like is plated with nickel firstly in a sulfamic acid bath and then in a Watts bath and gold is plated on it in an acid bath and then in a neutral bath. n CONSTITUTION: The surface of a cover made of a metal such as an Fe-Ni alloy, an Fe-Ni-Co alloy or the like is plated with nickel firstly in a sulfamic acid bath and then in a Watt bath; then, gold is plated on a nickel-plated film in an acid bath and then in a neutral bath. For example, a Kovar sheet whose thickness is 0.25mm and whose outer size is 13mm square is degreased and chemically polished; it is plated with nickel to be 3μm thick by using a sulfamic acid bath; then, it is plated with nickel to be 3μm thick by using a Watts bath. Then, gold is plated to be 0.5μm thick on a nickel-plated film by using an acid bath; in addition, gold is plated to be 1.5μm thick by using a neutral bath. Said plating operations are executed by using a barrel-type plating apparatus. n COPYRIGHT: (C)1989,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5583379-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5668060-A |
| priorityDate | 1988-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.