公开(公告)号：CA1109664A

公开(公告)日：1981-09-29

申请号：CA314417

申请日：1978-10-26

Applicant: IBM

Inventor： KUMAR ANANDA H ,  MCMILLAN PETER W ,  TUMMALA RAO R

IPC: H01L21/70 ,  C03C3/083 ,  C03C3/085 ,  C03C3/091 ,  C03C10/00 ,  C03C10/06 ,  C03C10/12 ,  H01B3/02 ,  H01L21/48 ,  H01L23/08 ,  H01L23/15 ,  H01L23/52 ,  H05K1/03 ,  H05K3/46 ,  H01G4/12

Abstract: GLASS-CERAMIC STRUCTURES AND SINTERED MULTILAYER SUBSTRATES THEREOF WITH CIRCUIT PATTERNS OF GOLD, SILVER OR COPPER Sintered glass-ceramic substrates containing multi-level, interconnected thick-film circuit patterns of highly conductive metals such as gold, silver or copper are provided which can be fired in air (for gold and silver) or in neutral atmospheres (for copper) at temperatures below the melting points of these metals. This has been made possible by the discovery that finely divided powders of certain glasses described herein sinter to essentially zero porosity at temperatures below 1000.degree.C while simultaneously maturing to glass-ceramics-of low dielectric constant, high flexural strength and low thermal expansivity.

公开(公告)号：CA1100150A

公开(公告)日：1981-04-28

申请号：CA303002

申请日：1978-05-10

Applicant: IBM

Inventor： HUMENIK JAMES N ,  POWELL JIMMIE L ,  TUMMALA RAO R

IPC: B41J2/135 ,  B41J2/16 ,  C03C3/076 ,  C03C3/087 ,  C03C3/089 ,  C03C3/091 ,  C03C4/20 ,  C03C3/04

Abstract: The lifetime of multiiple capillary nozzle assemblles embeddcd in a glass mass, of a multiple nozzle ink-jet printer, can be increased and the thermal and mechanical compatibility of thc resulting package enhanccd by fabrication of thc nozzles from glass compositions comprised o and MgO. Inclusion of ZrO2 as well as minor amounts of BaO, MgO, CaO, and Al2O3 enhances the alkali resistance of the glass nozzles. Also, the high SiO, contcnt of the glasses combined with thc presence of ZrO2, MgO, CaO, and Al2O3 imparts an acid resistance to the nozzles.

公开(公告)号：FR2399981A1

公开(公告)日：1979-03-09

申请号：FR7820728

申请日：1978-07-05

Applicant: IBM

Inventor： HUMENIK JAMES N ,  POWELL JIMMIE L ,  TUMMALA RAO R

IPC: B41J2/135 ,  B41J2/16 ,  C03C3/076 ,  C03C3/087 ,  C03C3/089 ,  C03C3/091 ,  C03C4/20 ,  C03C3/04 ,  B05B1/22 ,  B41J3/04

Abstract: The lifetime of multiple capillary nozzle assemblies embedded in a glass mass, of a multiple nozzle ink-jet printer, can be increased and the thermal and mechanical compatibility of the resulting package enhanced by fabrication of the nozzles from glass compositions comprised of SiO2, ZrO2, Na2O, K2O and MgO. Inclusion of ZrO2 as well as minor amounts of BaO, MgO, CaO, and Al2O3 enhances the alkali resistance of the glass nozzles. Also, the high SiO2 content of the glasses combined with the presence of ZrO2, MgO, CaO, and Al2O3 imparts an acid resistance to the nozzles.

公开(公告)号：FR2309481A1

公开(公告)日：1976-11-26

申请号：FR7606747

申请日：1976-03-02

Applicant: IBM

Inventor： FRIESER RUDOLF G ,  POWELL JIMMIE L ,  TUMMALA RAO R

IPC: C03B1/00 ,  C03B5/00 ,  C03C3/074 ,  C03C6/00 ,  C03C8/10 ,  C03C8/24 ,  C03C27/00 ,  C03C3/10 ,  C03B23/10

Abstract: A copper oxide containing seal glass is formed by a controlled low temperature process which reduces the formation of seeds in the glass. In one embodiment the glass is prepared in two portions with the first portion containing the high melting oxides and the second portion containing the low melting oxides. The copper oxide is added to the second portion and the two portions are combined to form the seal glass at temperatures below about 800 DEG C which reduces the formation of Cu2O crystals in the glass.

公开(公告)号：CA960852A

公开(公告)日：1975-01-14

申请号：CA126922

申请日：1971-11-04

Applicant: IBM

Inventor： DETWEILER JOHN R JR ,  TUMMALA RAO R

IPC: C03C3/093

Abstract: A glass composition particularly adapted for use with ceramic materials in electronic module applications having a thermal coefficient of expansion substantially matching the thermal coefficient of expansion of ceramic material, and a low dielectric constant less than 4.5. The composition is a borosilicate glass consisting essentially of SiO2, B2O3, CaO, A12O3, Na2O, K2O, BaO, ZrO2, and MgO in relatively precise amounts.