Title:
MULTI-MODE DESIGN AND OPERATION FOR TRANSISTOR MISMATCH IMMUNITY
Document Type and Number:
WIPO Patent Application WO/2022/257638
Kind Code:
A1
Abstract:
A. phase locked loop having a charge pump is described. The charge pump has circuitry to select a mode for each semiconductor chip from a plurality of modes to enhance yield. Nine unique modes are defined from which a selection is made for each chip. The selected mode mitigates effects of device mistracking anomalies for each chip. A method is provided to show how the modes are determined and prioritized.
Inventors:
STROM JAMES (US)
UNTERBORN ERIK (US)
SPERLING MICHAEL (US)
CHIDAMBARRAO DURESETI (US)
KESSELRING GRANT P (US)
UNTERBORN ERIK (US)
SPERLING MICHAEL (US)
CHIDAMBARRAO DURESETI (US)
KESSELRING GRANT P (US)
Application Number:
PCT/CN2022/089610
Publication Date:
December 15, 2022
Filing Date:
April 27, 2022
Export Citation:
Assignee:
IBM (US)
IBM CHINA CO LTD (CN)
IBM CHINA CO LTD (CN)
International Classes:
H03L7/089
Foreign References:
| US11303285B1 | 2022-04-12 | |||
| US20050185746A1 | 2005-08-25 | |||
| CN110945830A | 2020-03-31 | |||
| US10033270B2 | 2018-07-24 | |||
| US8773184B1 | 2014-07-08 | |||
| US7570105B1 | 2009-08-04 | |||
| US9496880B1 | 2016-11-15 | |||
| US20180048322A1 | 2018-02-15 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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