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
Image sensor and method for fabricating the same
Tungsten barrier and seed for copper filled TSV
Vectorization of program code
Systems and methods for a signed magnitude adder in one's complement logic
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Permanent magnet rotor with flux concentrating pole pieces
Mixture, especially spinning solution
  Randomly Featured Patents
Emulsion polymerization process utilizing a highly dispersed organosulfur molecular weight modifier
Flexible-circuit-board cable with positioning structure for insertion
Semiconductor memory device having a back gate voltage controlled delay circuit
Process for controlling the speed of an internal combustion engine after starting
Refrigerating machine oil composition, and refrigeration and compressor using the refrigerating machine oil composition
Manufacture of fiber reinforced articles
Variable mulching system for a lawnmower
Beam steering with a periodic resonance structure
Method and system for determining and using multiple object states in a computer telephony integration system
Power train controller and control method