The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2000
Filed:
Aug. 25, 1997
Paul M Goodwin, Littleton, MA (US);
John Nerl, Londonderry, NH (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
Printed Circuit Board fabrication costs are decreased, and device placement densities are increased by the use of well structures designed for receiving components such as capacitors on portions of the PCB directly beneath integrated circuit packages having very low vertical profiles. With such an arrangement it is possible to use newer low profile packages and still place a capacitor under the integrated circuit package for reduced area consumption and improved inductance and circuit cycle times. Further advantages of the present arrangement include a reduction in the number of vias that need to be drilled in the PCB to make capacitor attachments, a consequent improvement in PCB inductance and parasitic capacitance, and improved electrical properties for voltage reference planes and routing layers.