| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f759770b3140cfa2e8a57705be12aa1b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-1225
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-12 |
| filingDate |
1977-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08e652301f1331e148d286d394d5e038 |
| publicationDate |
1979-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4176602-A |
| titleOfInvention |
Dry film screen stencil and method of making |
| abstract |
A method of making a relatively thick dry film stencil for uses such as depositing solder paste through a screen chase. A stencil consisting of four mil thick dry film photoresist is formed by passing the photoresist layers through a roller and laminating them onto a support screen. The outer protective film coatings are removed and the film photoresist developed. It is then placed in a chase with the developed film face on the bottom. The solder paste is then squeegeed through the screen and deposited on a desired part. An alternate method of making the stencil uses two layers of dry film photoresist laminated together with the protective film coating removed. The stencil is cut to the size needed and exposed. Using a hydraulic press, the stencil is then connected to a screen in a chase by applying a pressure of 250 psi at 300° F. for 10 seconds. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2627433-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4254194-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4376815-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8302176-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3329599-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6096131-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5804248-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6592943-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102825900-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5254362-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5015557-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5106450-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3441593-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111650631-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4302528-A |
| priorityDate |
1975-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |