US Patent No. 10,602,651

SYSTEM FOR TRACING PRINTED CIRCUIT BOARDS THROUGH MANUFACTURING STAGES


Patent No. 10,602,651
Issue Date March 24, 2020
Title System For Tracing Printed Circuit Boards Through Manufacturing Stages
Inventorship Fu-Sheng Luo, Shenzhen (CN)
Pai-Hung Huang, New Taipei (TW)
Chien-Jui Lo, New Taipei (TW)
Yin-Zhen Zeng, Shenzhen (CN)
Assignee Avary Holding (Shenzhen) Co., Limited., Shenzhen (CN) HongQiSheng Precisio...

Claim of US Patent No. 10,602,651

1. A traceability system of a printed circuit board comprising at least two inner copper foil substrates, the traceability system comprising:an identification code marking device comprising:
a coding unit configured to mark an identification code on each inner copper foil substrate;
a scanning unit configured to emit X-rays after adding one of the inner copper foil substrates each time so that the X-rays pass through the newly added inner copper foil substrate to scan the identification code of the inner copper foil substrate of the previous layer, and generate an identification code graphic;
a reading unit configured to receive and parse the identification code graphic, and determine a next identification code according to a predetermined encoding rule and the parsed identification code graphic, the predetermined encoding rule being that each identification code records an identity information of the inner copper foil substrate of corresponding layer, and each identification code associated with the identification code of the identification code of the inner copper foil substrate of previous layer;
the coding unit further configured to mark determined identification code on newly added inner copper foil substrate; and
a server communicating with the identification code marking device and comprising:
a storage device that stores one or more programs and a database; and
a processor;
the one or more programs when executed by the processor, cause the processor to:
store the identity information recorded by the identification code of the inner copper foil substrate and processing information and processing information of the inner copper foil substrate in the database.