CN207834281U - 一种铝碳化硅复合材料制备的igbt基板 - Google Patents
一种铝碳化硅复合材料制备的igbt基板 Download PDFInfo
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- CN207834281U CN207834281U CN201721670812.2U CN201721670812U CN207834281U CN 207834281 U CN207834281 U CN 207834281U CN 201721670812 U CN201721670812 U CN 201721670812U CN 207834281 U CN207834281 U CN 207834281U
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GR01 | Patent grant | ||
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: IGBT base plate of aluminium carbonization silicon composites preparation Effective date of registration: 20190312 Granted publication date: 20180907 Pledgee: Shaanxi Qin Nong rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: XI'AN TRUSUNG ADVANCED MATERIAL CO., LTD. Registration number: 2019610000045 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210615 Granted publication date: 20180907 Pledgee: Shaanxi Qin Nong rural commercial bank Limited by Share Ltd. hi tech sub branch Pledgor: XI'AN TRUSUNG ADVANCED MATERIAL Co.,Ltd. Registration number: 2019610000045 |