| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_040ec81c891acc3f3186f56cb99cf161 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-0002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L22-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-3171
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L22-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-316
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-31 |
| filingDate |
1996-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f947dc4d7df44afe9b89251642b1af56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a98b1f973768effb5d28721f6f047668
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b34f8280aa0dd6de876b541c698c3a8b |
| publicationDate |
1998-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5736433-A |
| titleOfInvention |
Double mask hermetic passivation method providing enhanced resistance to moisture |
| abstract |
A passivation structure is formed using two passivation layers and a protective overcoat layer using two masking steps. The first passivation layer is formed over the wafer and openings are provided to expose portions of the pads for testing the device and fusible links. After testing and laser repair, a second passivation layer is formed over the wafer followed a deposit of the protective overcoat. The protective overcoat is patterned and etched, exposing the pads. The remaining portions of the protective overcoat are used as a mask to remove portions of the second passivation layer overlying the pads. Leads are then attached to pads and the devices are encapsulated for packaging. The second passivation layer overlaps edge portions of the first passivation layer at the bond pads to enhance moisture resistance. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10804231-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7535078-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109256375-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11769742-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002135055-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6599796-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7179662-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003151060-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003124750-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007132478-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11444046-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007267651-A9
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6479308-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7105917-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6008075-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6846705-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004219707-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109256375-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11362053-B2 |
| priorityDate |
1996-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |