摘要:
In a semiconductor device having a three-layered buffer layer comprising core layer 1 having interconnected foams such as a three-dimensional reticular structure and adhesive layers 2 provided on both sides of the core layer as a stress buffer layer between semiconductor chip 5 and wiring 4 to lessen a thermal stress generated between the semiconductor device and the package substrate, where a thickness ratio of core layer 1 to total buffer layer is at least 0.2, the production process can be simplified by using such a buffer layer, thereby improving the mass production capacity and enhancing the package reliability.
摘要:
In a semiconductor device having a three-layered buffer layer comprising core layer 1 having interconnected foams such as a three-dimensional reticular structure and adhesive layers 2 provided on both sides of the core layer as a stress buffer layer between semiconductor chip 5 and wiring 4 to lessen a thermal stress generated between the semiconductor device and the package substrate, where a thickness ratio of the core layer 1 to total buffer layer is at least 0.2, the production process can be simplified by using such a buffer layer, thereby improving the mass production capacity and enhancing the package reliability.
摘要:
A semiconductor device having a superior connection reliability is obtained by providing a buffer body for absorbing the difference of thermal expansion between the mounting substrate and the semiconductor element in a semiconductor package structure, even if an organic material is used for mounting substrate. A film material is used as the body for buffering the thermal stress generated by the difference in thermal expansion between the mounting substrate and the semiconductor element. The film material has modulus of elasticity of at least 1 MPa in the reflow temperature range (200-250° C.).
摘要:
A semiconductor device having a superior connection reliability is obtained by providing a buffer body for absorbing the difference of thermal expansion between the mounting substrate and the semiconductor element in a semiconductor package structure, even if an organic material is used for the mounting substrate. A film material is used as the body for buffering the thermal stress generated by the difference in thermal expansion between the mounting substrate and the semiconductor element. The film material has modulus of elasticity of at least 1 MPa in the reflow temperature range (200–250° C.).
摘要:
A semiconductor device having a superior connection reliability is obtained by providing a buffer body for absorbing the difference of thermal expansion between the mounting substrate and the semiconductor element in a semiconductor package structure, even if an organic material is used for the mounting substrate. A film material is used as the body for buffering the thermal stress generated by the difference in thermal expansion between the mounting substrate and the semiconductor element. The film material has modulus of elasticity of at least 1 MPa in the reflow temperature range (200-250.degree. C.).
摘要:
Semiconductor devices, semiconductor wafers, and semiconductor modules are provided, wherein: the semiconductor device has a small warp; damage at the chip edge and cracks occurring in a dropping test are scarcely generated; and the semiconductor device is superior in mounting reliability and mass producibility. The semiconductor includes a semiconductor chip 64; a porous stress relaxing layer 3 provided on the plane, whereon circuits and electrodes are formed, of the semiconductor chip; a circuit layer 2 provided on the stress relaxing layer and connected to the electrodes; and external terminals 10 provided on the circuit layer; wherein an organic protecting film 7 is formed on the plane, opposite to the stress relaxing layer, of the semiconductor chip, and respective side planes of the stress relaxing layer, the semiconductor chip 6, and the protecting film 7 are exposed outside on the same plane.
摘要:
Semiconductor devices,-semiconductor wafers, and semiconductor modules are provided: wherein the semiconductor device has a small warp; damages at chip edge and cracks in a dropping test are scarcely generated; and the semiconductor device is superior in mounting reliability and mass producibility.The semiconductor device 17 comprising: a semiconductor chip 64; a porous stress relaxing layer 3 provided on the plane, whereon circuits and electrodes are formed, of the semiconductor chip; a circuit layer 2 provided on the stress relaxing layer and connected to the electrodes; and external terminals 10 provided on the circuit layer; wherein an organic protecting film 7 is formed on the plane, opposite to the stress relaxing layer, of the semiconductor chip, and respective side planes of the stress relaxing layer, the semiconductor chip 6, and the protecting film 7 are exposed outside on a same plane.
摘要:
A laminate capable of mounting semiconductor elements thereon; comprising an insulating layer which is constituted by a resin portion of sea-island structure and a woven reinforcement. The resin portion of sea-island structure is, for example, such that a resin as islands are dispersed in a resin as a matrix. Thus, the insulating layer exhibits a coefficient of thermal expansion of 3.0.about.10 (ppm/K) in a planar direction thereof and a glass transition temperature of 150.about.300 (.degree.C.). Owing to these physical properties, thermal stresses which the laminate undergoes in packaging the semiconductor elements thereon can be reduced, so that the connections of the laminate with the semiconductor elements can be made highly reliable.
摘要:
A laminate capable of mounting semiconductor elements thereon; comprising an insulating layer which is constituted by a resin portion of sea-island structure and a woven reinforcement. The resin portion of sea-island structure is, for example, such that a resin as islands are dispersed in a resin as a matrix. Thus, the insulating layer exhibits a coefficient of thermal expansion of 3.0.about.10 (ppm/K) in a planar direction thereof and a glass transition temperature of 150.about.300 (.degree.C.). Owing to these physical properties, thermal stresses which the laminate undergoes in packaging the semiconductor elements thereon can be reduced, so that the connections of the laminate with the semiconductor elements can be made highly reliable.
摘要:
A resin encapsulated semiconductor element is encapsulated with resin composition containing an organic compound selected from the group consisting of organobromine compounds, organophosphorus compounds and organonitrogen compounds, an inorganic filler, and a metal borate. The obtained resin encapsulated semiconductor element has the same flame resistance as a conventional semiconductor element which is encapsulated with a resin composition containing a halogen and antimony compound, and furthermore, has remarkably improved reliabilities regarding moisture resistance and storing at a high temperature by effects of the contained metal borate for suppressing generation of or trapping released gas components, such as halogen or phosphorus, and others.