Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Flip-chip mounting method and bump formation method










Image Number 4 for United States Patent #7927997.

To provide a flip-chip mounting method and a bump formation method applicable to flip-chip mounting of a next generation LSI and having high productivity and high reliability. A semiconductor chip 20 having a plurality of electrode terminals 12 is held to oppose a circuit board 21 having a plurality of connection terminals 11 with a given gap provided therebetween, and the semiconductor chip 20 and the circuit board 21 in this state are dipped in a dipping bath 40 containing a melted resin 14 including melted solder particles for a given period of time. In this dipping process, the melted solder particles self-assemble between the connection terminals 11 of the circuit board 21 and the electrode terminals 12 of the semiconductor chip 20, so as to form connectors 22 between these terminals. Thereafter, the semiconductor chip 20 and the circuit board 21 are taken out of the dipping bath 40, and the melted resin 14 having permeated into the gap between the semiconductor chip 20 and the circuit board 21 is cured, so as to complete a flip-chip mounting body.








 
 
  Recently Added Patents
Systems and methods for facilitating communication with foundation fieldbus linking devices
Communication terminal device, and recording medium
Satellite communication network
Method for producing a sulfonated polyarylether block copolymer
Consistent retention and disposition of managed content and associated metadata
Luggage
Estimating travel time
  Randomly Featured Patents
Pneumatic mat with safety apparatus
Ballast circuit with a japped transformer flyback converter providing driving energy for start, glow and run modes of a lamp
Ubiquitin-specific proteases
Light emitting apparatus and control method thereof
Methods of making sterilized milk compositions comprising native gellan gum
Crystalline oxide material and its synthesis
Decorative toilet lid with changeable decorative insert sheets
Wind turbine generator fault diagnostic and prognostic device and method
Motion picture film cassette having removable film stripping web
Hand-held port tester for data-processing systems