Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Thermally stable low dielectric norbornene polymers with improved solubility and adhesion property










Image Number 6 for United States Patent #7291689.

The present invention provides norbornene-based copolymers for which one monomer is at least selected from a group consisting of norbornene and dicyclopentadiene, and the other from norbornene-based comonomers of Formula 1 shown below: ##STR00001## In Formula 1, R.sub.1, R.sub.2 and a are defined in this specification.The present invention provides insulating elements for multi-chip packages and antireflection films for the exposure process of semiconductor fabrication using said norbornene-based copolymers. Norbornene-based copolymers according to the present invention have low dielectric constant as well as high thermal stability and excellent solubility to various organic solvents.








 
 
  Recently Added Patents
Color variation control process for molding plastic and composite multi-color articles
Light emitting device and electronic device
Compositions and methods for producing isoprene
Semiconductor device and method of manufacturing the same
Shape based similarity of continuous wave doppler images
Method, apparatus and computer program product for visualizing whole streets based on imagery generated from panoramic street views
Hand sign
  Randomly Featured Patents
Silicon nitride film and semiconductor device
Reversible heat sensitive recording composition
Packer releasing tool and method for releasing a packer assembly from a wellbore
Adjuvants on the basis of bisacyloxypropylcystene conjugates and derivatives and their uses in pharmaceutical compositions
Self-crimped foamed fibers
Water air interface vehicle
Pattern noise correction for pseudo projections
Method of cleaning nitrogen oxide containing exhaust gas
Jitter addition apparatus and test apparatus
Measurements using balanced illumination optical microscopy