摘要:
Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.
摘要:
Disclosed is a novel composition of matter comprising a polyacid and a polymer containing repeating units which contain one or more basic atoms. The complex is water-soluble and electrically conductive. The complex is useful in providing organic discharge layers for use in electronic applications and fabrications.
摘要:
A photoresist having both positive and negative tone components resulting in a lower “k” factor than the single tone photoresist is disclosed. The hybrid resist may either have the negative tone resist or the positive tone resist as the major portion, while the other tone is a relatively minor portion. For examples, a positive tone resist may include a minor portion of a negative tone cross-linker or a negative tone resist may include positively acting functional groups. The hybrid resist of the present invention allows for wider exposure dosage windows, therefore increasing the yield or performance and line density.
摘要:
A curable material comprising a blend of a fluorine-containing cyanate and a fluorine-containing poly(arylene ether) wherein said cyanate is a monomer having the structureN.ident.C--O--R--.sub.n --O--C.ident.Nsaid fluorine containing poly(arylene ether) has the structureX--R--.sub.m --Xwherein X is any group capable of reacting with a --C.ident.N group;R is an aliphatic or aromatic group which may or may not be fluorosubstituted;R.sup.1 is an aliphatic or aromatic group which may or may not be fluoro substituted or R.sup.1 is selected from the group consisting of ether, carbonyl, sulfone, phosphine oxide and sulfide, and at least one of R or R.sup.1 must be fluoro substituted;n is 0-10; andm is 0-100;said material being heat-curable at a temperatures between 180.degree. and 325.degree. C.;said material in the cured state comprising a fluorine-containing polycyanurate network having a plurality of discrete phases of said fluorine-containing thermoplastic polymer dispersed therein wherein said thermoplastic polymer phases are of submicron size.
摘要:
An electronic circuit package comprising an electrically conductive circuit layer on a polymer, ceramic or multi-layer substrate wherein a curable dielectric material is applied over the electrically conductive circuit layer. The curable dielectric material comprises a blend of a fluorine-containing cyanate and a fluorine-containing arylene ether polymer. The cyanate is a monomer having the structureN.tbd.C--O--R--[R.sup.1 ].sub.n --O--C.tbd.Nand the fluorine containing arylene ether polymer has the structureX--R--[R.sup.1 ].sub.m --Xwherein X is any group capable of reacting with a --C.tbd.N group;R is an aliphatic or aromatic group which may or may not be fluorosubstituted;R.sup.1 is an aliphatic or aromatic group which may or may not be fluoro substituted or R.sup.1 is selected from the group consisting of ether, carbonyl, sulfone, phosphine oxide and sulfide, and at least one of R or R.sup.1 must be fluoro substituted;n is 0-10; andm is 0-100.The dielectric material in the cured state comprises a fluorine-containing polycyanurate network having a plurality of discrete phases of the fluorine-containing thermoplastic polymer dispersed therein. The thermoplastic polymer phases are of submicron size.
摘要翻译:一种电子电路封装,包括在聚合物,陶瓷或多层基底上的导电电路层,其中可固化介电材料施加在导电电路层上。 可固化电介质材料包括含氟氰酸酯和含氟亚芳基醚聚合物的共混物。 氰酸酯是具有结构N 3BOND C-O-R- [R 1] n -O-C 3 N N的单体,含氟亚芳基醚聚合物具有X-R- [R 1] m -X的结构,其中X是可与-C 3 N N基反应的基团; R是可以是或不是氟取代的脂族或芳族基团; R1是脂族或芳族基团,其可以是或不是氟取代的,或者R1选自醚,羰基,砜,氧化膦和硫化物,并且R或R 1中的至少一个必须是氟取代的; n为0-10; m为0-100。 固化状态下的电介质材料含有分散在其中的含氟热塑性聚合物的多个离散相的含氟聚氰脲酸酯网络。 热塑性聚合物相具有亚微米尺寸。
摘要:
A prepreg which is heat curable within a temperature range of between about 200.degree. C. and 325.degree. C. comprising a reinforcing material impregnated with a curable material said curable material comprising a blend of a fluorine-containing cyanate and a fluorine-containing arylene ether polymer wherein said cyanate is a monomer having the structureN.tbd.C--O--R--[R.sup.1 ].sub.n --O--C.tbd.Nsaid fluorine containing arylene ether polymer has the structureX--R--[R.sup.1 ].sub.m --Xwherein X is any group capable of reacting with a --C.tbd.N group;R is an aliphatic or aromatic group which may or may not be fluorosubstituted;R.sup.1 is an aliphatic or aromatic group which may or may not be fluoro substituted or R.sup.1 is selected from the group consisting of ether, carbonyl, sulfone, phosphine oxide and sulfide, and at least one of R or R.sup.1 must be fluoro substituted;n is 0-10; andm is 0-100;said material in the cured state comprising a fluorine-containing polycyanurate network having a plurality of discrete phases of said fluorine-containing thermoplastic polymer dispersed therein wherein said thermoplastic polymer phases are of submicron size.
摘要:
A photoresist having both positive and negative tone components resulting in a lower “k” factor than the single tone photoresist is disclosed. The hybrid resist may either have the negative tone resist or the positive tone resist as the major portion, while the other tone is a relatively minor portion. For examples, a positive tone resist may include a minor portion of a negative tone cross-linker or a negative tone resist may include positively acting functional groups. The hybrid resist of the present invention allows for wider exposure dosage windows, therefore increasing the yield or performance and line density.
摘要:
A photoresist composition is disclosed having both negative tone and positive tone responses, giving rise to spaces being formed in the areas of diffraction which are exposed to intermediate amounts of radiation energy. This resist material may be used to print doughnut shapes or may be subjected to a second masking step, to print lines. Additionally, larger and smaller features may be obtained using a gray-scale filter in the reticle, to create larger areas of intermediate exposure areas.
摘要:
The present invention relates generally to a new apparatus and method for forming cavities in semiconductor substrates without the necessity of using an insert. More particularly, the invention encompasses an apparatus and a method for fabricating cavities in semiconductor substrates wherein a thermally decomposable surface layer is placed over the cavity prior to lamination and caused to conform to the contour of the cavity, thus preventing collapse of, or damage to, the cavity shelves during the lamination process. After the lamination process, the thermally decomposable surface layer is conveniently removed in pyrolysis and binder removal segments of the sinter process without causing damage to the cavity shelves or paste pull-outs.
摘要:
The invention relates to a cationic complex of technetium-99m with(a) at least one bidendate ligand X having the formulaR.sub.1 R.sub.2 ZQZR.sub.3 R.sub.4 whereeach Z is phosphorus or arsenic,Q is a (CH.sub.2).sub.n linking group where n is 2 to 8 or a 1,2-phenylene linking group,each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is hydrogen, C.sub.1 to C.sub.5 alkyl or phenyl; and(b) at least one monodentate isonitrile ligand Y.The invention also relates to a radiopharmaceutical composition comprising said complex, to a kit for preparing said composition, and to the use of said composition for a radiodiagnostic examination.