公开(公告)号：US3809627A

公开(公告)日：1974-05-07

申请号：US16537671

申请日：1971-07-22

申请人： WESTERN ELECTRIC CO

发明人： SHARP D ,  SUTCH R

IPC分类号： C23C14/06 ,  C23C14/34 ,  H01B1/00 ,  H01C17/12 ,  H01C17/26 ,  C23B5/52 ,  C23B11/02

CPC分类号： H01C17/262 ,  C23C14/0688 ,  C23C14/34 ,  H01B1/00 ,  H01C17/12

摘要： A FILM-FORMING METAL AND A CERAMIC ARE CO-SPUTTERED ON A GLASS SUBSTRATE TO FORM AN ANODIZABLE CERMET FILM WHOSE RESISTANCE, AS MEASURED BETWEEN A PAIR OF CONDUCTIVE TERMINALS DEPOSITED THEREON, IS LESS THAN A PREDETERMINED VALUE. THE FILM IS ANODIZED ELECTROLYTICALLY TO INCREASE OR "TRIM" ITS TERMINAL RESISTANCE TO THE PREDETERMINED VALUE. INTERACTION BETWEEN THE CERMIC AND THE ANODICALLY-GROWN OXIDE OF THE FILM-FORMING METAL DURING THE ANODIZING STEP

STABILIZES THE TERMINAL RESISTANCE SO THAT THE TRIMMED VALUE IS MAINTAINED WITHIN THE CLOSE TOLERANCE DURING SUBSEQUENT TERMAL AGING AND OPERATION.

公开(公告)号：US3819785A

公开(公告)日：1974-06-25

申请号：US22297472

申请日：1972-02-02

申请人： WESTERN ELECTRIC CO ,  ARGYLE J ,  BELL TELEPHONE LABOR INC

发明人： ARGYLE J ,  MEDOWSKI G ,  PORTS D ,  SUTCH R ,  SUTCH P

IPC分类号： C04B35/111 ,  C04B35/634 ,  C04B35/636 ,  B28B1/26 ,  C04B35/64

CPC分类号： C04B35/6342 ,  C04B35/111 ,  C04B35/634 ,  C04B35/6365

摘要： A CASTING SLIP FOR FINE-GRAIN ALUMINA BODIES INCLUDES ALUMINA, A GRAIN-GROWTH INHIBITOR SUCH AS MAGNESIA, A SOLVENT INCLUDING TRICHLOROETHYLENE AND TETRACHLOROETHYLENE, AND A DEFLOCCULANT SUCH AS MENHADEN OIL. THESE INGREDIENTS ARE MILLED. THEN, A BINDER SUCH AS POLYVINYL BUTYAL RESIN WITH A LOW VISCOSITY AND A LOW HYDROXY CONTENT AND PLASTICIZERS SUCH AS POLYALKYLENE GLYCOL AND PHTHALATE ESTER ARE ADDED TO THESE INGREDIENTS AND THE ENTIRE SLIP IS MIXED. NEXT, THE SLIP IS CAST ONTO A MOVING CARRIER SHEET INTO THE FORM OF A TAPE WHICH IS DRIED, PUNCHED AND FIRED TO FORM FINE-GRAIN ALUMINA BODIES WHICH ARE PARTICULARLY USEFIL AS SUBSTRATES FOR MICROCIRCUITS, INCLUDING THIN FILM AND INTEGRATED CIRCUITS. THE SLIP IS NONFLAMMALBLE AND VAPORS THEREFROM PRODUCE A NONEXPLOSIVE MIXTURE WITH AIR. ALSO, SOLVENTS OF THE TAPE DO NOT EXCESSIVELY ATTACK THE SHEET ONTO WHICH IT IS CAST AND THE CAST TAPE IS ACCORDINGLY VERY FLAT. THE TAPE IS ALSO VERY FLEXIBLE AND EASY TO ROLL UP AND STORE. THE FLAT TAPE, WHEN PUNCHED AND FIRED, PRODUCES FLAT ALUMINA BODIES.