Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Oxide-bondable solder










Image Number 2 for United States Patent #6319617.

A solder composition that bonds well to oxides and other surfaces to which solder bonding is conventionally difficult is provided. The solder is particularly useful for reliable bonding and packaging of optical components that often have oxide surfaces. The solder composition exhibits a microstructure containing a solder matrix in which is distributed fine, micron-scale islands of rare-earth-containing intermetallic particles. The existence of the islands makes the rare earth elements better available for bonding, and reduce the extent to which the rare earths are oxidized. Advantageously, the solder contains Au and/or Ag, in which the rare earth elements tend to have some solid solubility. Due to this solubility, the Au and/or Ag tend to provide some additional protection of the rare earths against oxidation, and thereby also provide accelerated dissolution of the rare earth into the molten solder.








 
 
  Recently Added Patents
Organic EL display device and method for manufacturing the same
Antenna device
Imidazo[1,2-B]pyridazine and pyrazolo[1 .5-A]pyrimidine derivatives and their use as protein kinase inhibitors
Bioelectric battery for implantable device applications
Vehicle and communication monitoring
Fuel-based injection control
Solid-state imaging device, method for manufacturing solid-state imaging device, and electronic apparatus
  Randomly Featured Patents
Device and process for the continuous casting of metals
Reflective rainbow ornament
Deadlock resolution in end-to-end credit protocol
Crystalline colloidal array compositions
Trailer hitch
Apparatus and method for interacting with a simulated 3D interface to an operating system operative to control computer resources
Method and apparatus for updating a multidimensional scaling database
Method for treating cross-linked biological tissues
Plant having enhanced root elongation and method for production thereof
Extracting key frames from a video sequence