Method for verifying the alignment between integrated electronic devices
US8150315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2010 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Oct 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2225/06593
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for verifying alignment between first and second integrated devices coupled together using a reference and a coupling capacitor, including: transmitting a reference signal on a transmission electrode of the reference capacitor; receiving a coupling signal on a reception electrode of the reference capacitor; amplifying the coupling signal, generating a reception reference signal; generating a reception control signal as a function of the reception reference signal; transmitting a communication signal on an electrode of the coupling capacitor; receiving a reception signal on an electrode of the coupling capacitor; amplifying the reception signal, generating a first compensated signal; controlling a level of amplification of amplifying the coupling signal and the reception signal as a function of the reception control signal; and detecting a possible misalignment between the first and second devices based on an amplitude of the communication signal and an amplitude of the compensated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.