Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Construction structures and manufacturing processes for integrated circuit wafer probe card assemblies










Image Number 12 for United States Patent #6799976.

Several embodiments of integrated circuit probe card assemblies are disclosed, which extend the mechanical compliance of both MEMS and thin-film fabricated probes, such that these types of spring probe structures can be used to test one or more integrated circuits on a semiconductor wafer. Several embodiments of probe card assemblies, which provide tight signal pad pitch compliance and/or enable high levels of parallel testing in commercial wafer probing equipment, are disclosed. In some preferred embodiments, the probe card assembly structures include separable standard components, which reduce assembly manufacturing cost and manufacturing time. These structures and assemblies enable high speed testing in wafer form. The probes also have built in mechanical protection for both the integrated circuits and the MEMS or thin film fabricated spring tips and probe layout structures on substrates. Interleaved spring probe tip designs are defined which allow multiple probe contacts on very small integrated circuit pads. The shapes of probe tips are preferably defined to control the depth of probe tip penetration between a probe spring and a pad or trace on an integrated circuit device. Improved protective coating techniques for spring probes are also disclosed, offering increased reliability and extended useful service lives for probe card assemblies.








 
 
  Recently Added Patents
Communication apparatus, integrated circuit, and communication method
Color image display device, color filter substrate, color pixel array substrate, and electronic device
Precoding codebooks for MIMO communication systems
Synchronization of web applications and media
Systems and methods for automated institutional processing of payments
Method for producing a flexible composite elastomeric polyurethane skin
Apparatus for preventing overcharge of a battery
  Randomly Featured Patents
Grinding apparatus
Connector assembly
Constant vacuum felt dewatering system
Hemorrhoid treatment device
Anti-backlash cam tool
System for producing and conditioning blocks of flexible polyurethane foam
Packaged semiconductor device
Method and apparatus for facilitating underwater work on ship hulls and like objects
Systolic processor elements for a neural network
Bacterial mycothiol S-conjugate amidase family