US Patent 7131847 Test apparatus having intermediate connection board for package

A test apparatus may include a test socket having socket pins with a standard configuration. An intermediate connection board may be interposed between the test socket and a package that has solder balls with a non-standard configuration. The intermediate connection board may have contact balls and contact pads. The contact balls may be arranged in a configuration that is compatible with the standard socket pin configuration, and the contact pads may be arranged in a configuration that is compatible with the non-standard solder ball configuration.