摘要:
The invention relates to a cement suspension comprising the following, in relation to the cement material: water (22 - 35 % by weight); acetic acid (1 - 10 % by weight); plasticizer (up to 8 % by weight); and dispersant agent (0 - 2 % by weight), having an apparent viscosity of 0.5 - 2 Pa.s for the casting speed gradient. The invention also comprises pieces of cement that are prepared from said suspension and which can be used as electronic components.
摘要:
Leistungshalbleiteranordnung mit einem entwärmenden Grundkörper (10, 30, 41, 63, 80) mit zumindest einer flächig ausgebilde ten Aussenseite, wobei der Grundkörper (10, 30, 41, 63, 80) aus metallischem Material besteht oder mit einer Schicht aus metallischem Material versehen ist und an dessen Aussenseite zumindest teilweise eine elektrisch isolierende Oxidschicht (12, 81) auf dem metallischen Material ausgebildet ist; mit mindestens einem Leistungshalbleiterbauteil (2, 32, 83), das auf der einen Aussenseite des Grundkörpers angeordnet ist derart, dass es durch die Oxidschicht von dem Grundkörper elektrisch isoliert ist; mit einer über das eine Leistungshalbleiterbauteil (2, 32, 83) hinweg auf die eine Aussenseite zumindest teilweise auflaminierten, elektrisch isolierenden Folie (84), wobei die Folie im Bereich des einen Leistungshalbleiterbauteils (2, 32, 83) Aussparungen zur Kontaktierung des einen Leistungshalbleiterbauteils (2, 32, 83) aufweist; und mit einer auf die Folie und in deren Aussparungen auf das Leistungshalbleiterbauteil grossflächig oder strukturiert aufgebrachten oberen Metallisierung (85).
摘要:
The invention relates to a polymer ceramic composite material comprising at least one polymer and at least one ceramic material, characterised in that the polymer ceramic composite material comprises the following dielectric properties in the high frequency range of frequencies above 0.5 GHz: (a) a permittivity epsilon of between 2 and 100; and (b) a factor Q of at least 500. The invention also relates to single or multilayered bodies for using as microwave dielectrics, containing the cited polymer ceramic composite material. The invention further relates to a method for producing microwave dielectrics, which can be carried out with little technical effort, which enables microwave bodies to be produced close to the end contours, and which requires only low processing temperatures. The inventive polymer ceramic composite material is characterised, inter alia, by the fact that the dielectric properties of said composite can be pre-determined or adjusted in a reproducible manner by selecting the used ceramic material and/or the used polymer material.
摘要:
A wire bond-less electronic component is for use with a circuit external to the wire bond-less electronic component. The wire bond-less electronic component includes a support substrate (110, 410), an electronic device (130) over the support substrate, and a cover (140, 440, 540) located over the electronic device and the support substrate. The cover includes an interconnect structure (141, 441, 541) electrically coupled to the electronic device and adapted to electrically couple together the electronic device and the circuit for providing impedance transformation of an electrical signal between the electronic device and the circuit.
摘要:
Interconnection of active and passive components in a substrate built using wafer fabrication techniques increase routing density by using a silicon substrate and using silicon processing technologies to embed interconnects and components into the substrate. Implantable medical devices including surge protection, output transistors, and other high power components are interconnected using the substrates.
摘要:
According to a method for producing connection substrates for semiconductor chips, preferably PSGA (polymer stud grid array) substrates, a blank body (1), preferably a film, is heated and humps (3) and/or recesses are produced on at least one of its surfaces using an embossing roller. High temperature resistant thermoplastics, preferably LCPs (liquid crystal polymers), are used as the material for the substrate body. Their surface can preferably be provided with a metallic layer which is in turn provided with openings as an embossing aid.