Patent assignee · TW · COMPANY

Ultratera Corporation

27Patents
0Active
27Granted
31Portfolio score

Filing activity: Apr 23, 2002 → Nov 2, 2004

Most-cited patents

PatentTitleAreaCited byStatus
US6713856B2 Stacked chip package with enhanced thermal conductivity Electricity 82 Expired
US7224073B2 Substrate for solder joint Emerging Cross-Sectional Technologies 66 Expired
US6713857B1 Low profile stacked multi-chip semiconductor package with chip carrier having opening and fabrication method of the semiconductor package Electricity 48 Expired
US6614660B1 Thermally enhanced IC chip package Electricity 44 Expired
US6683385B2 Low profile stack semiconductor package Electricity 20 Expired
US6849915B1 Light sensitive semiconductor package and fabrication method thereof Electricity 18 Expired
US6753480B2 Printed circuit board having permanent solder mask Emerging Cross-Sectional Technologies 15 Expired
US6849932B2 Double-sided thermally enhanced IC chip package Electricity 14 Expired
US6555919B1 Low profile stack semiconductor package Electricity 11 Expired
US7091623B2 Multi-chip semiconductor package and fabrication method thereof Electricity 11 Expired
US6897566B2 Encapsulated semiconductor package free of chip carrier Electricity 7 Expired
US6709894B2 Semiconductor package and method for fabricating the same Electricity 5 Expired
US6879030B2 Strengthened window-type semiconductor package Electricity 5 Expired
US6933178B1 Method of manufacturing semiconductor packages and a clamping device for manufacturing a semiconductor package Electricity 5 Expired
US6857865B2 Mold structure for package fabrication Electricity 5 Expired
US6911604B2 Bonding pads of printed circuit board capable of holding solder balls securely Electricity 4 Expired
US6710434B1 Window-type semiconductor package and fabrication method thereof Electricity 4 Expired
US6822337B2 Window-type ball grid array semiconductor package Electricity 4 Expired
US7122407B2 Method for fabricating window ball grid array semiconductor package Electricity 4 Expired
US6956741B2 Semiconductor package with heat sink Electricity 3 Expired
US6859056B2 Test fixture for semiconductor package and test method of using the same Physics 2 Expired
US6968613B2 Fabrication method of circuit board Emerging Cross-Sectional Technologies 2 Expired
US6964888B2 Semiconductor device and method for fabricating the same Electricity 2 Expired
US7080447B2 Method of manufacturing solder mask of printed circuit board Emerging Cross-Sectional Technologies 2 Expired
US6740540B2 Fabrication method for circuit board Emerging Cross-Sectional Technologies 1 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.