| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2203-122 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-108
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-322 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-10 |
| filingDate |
1994-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7dd5cf7662fba0c44025faf55690f6c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bee20169a8a153bd06f898af49d30372
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a5b7f0e52066114ce8a24b4d555b34d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20ab2e6f43c5dbe1a63fb377d3c3c6d9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1aef4faf834f8b5d5351dc9194c8c790
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9581686b6f8593f07d39816ba26c9ea |
| publicationDate |
1996-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5538832-A |
| titleOfInvention |
Developing solution for producing printed circuit boards and a process for producing printed circuit boards wherein the developing solution comprises a quaternary ammonium hydroxide and a quaternary ammonium carbonate |
| abstract |
A developing solution comprising a specific amount of a quaternary ammonium hydroxide represented by the general formula [(R1)3N-R]+xOH- (R indicates an alkyl group having 1 to 3 carbon atoms or a hydroxy-substituted alkyl group having 1 to 3 carbon atoms, and R1 indicates an alkyl group having 1 to 3 carbon atoms) and, if necessary, a quaternary ammonium hydrogen carbonate represented by the general formula [(R1)3N-R]+xHCO3- (R and R1 are the same as the above) and having a pH in the range of 9 to 13, and a process for producing printed circuit boards using an organic alkali solution, are provided. The developing solution needs no defoaming agent because it causes little foaming. Printed circuit boards produced by using the developing solution have excellent finished accuracy. Therefore, fine circuits of printed circuit networks can be produced with stability. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6548858-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007003883-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007196776-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006063626-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006063626-A3 |
| priorityDate |
1993-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |