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CHANGCHUN CHANGGUANG YUANCHEN MICROELECTRONIC TECH CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    130,131
  • Filing trend
    ⇩ 100.0%
About

CHANGCHUN CHANGGUANG YUANCHEN MICROELECTRONIC TECH CO LTD has a total of 13 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets semiconductors, optics and basic materials chemistry are ZHANG JOHN H, JIANGSU UNION SEMICONDUCTOR CO LTD and NAT CT FOR ADVANCED PACKAGING NCAP CHINA.

Patent filings in countries

World map showing CHANGCHUN CHANGGUANG YUANCHEN MICROELECTRONIC TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing CHANGCHUN CHANGGUANG YUANCHEN MICROELECTRONIC TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Yanqing 9
#2 Chen Yanming 9
#3 Fang Xiaolei 7
#4 Liu Jiajing 6
#5 Zhang Kai 5
#6 Cheng Yu 5
#7 Ye Wuyang 5
#8 Zhao Dongxu 3
#9 Liu Jia 3
#10 Ma Zhichao 2

Latest patents

Publication Filing date Title
CN111482902A Method for pressure adjustment of dresser in chemical mechanical polishing
CN110993490A Method for realizing heterogeneous bonding of chips with different sizes
CN110880453A Method for improving quality of bonded wafer
CN110854018A High-selectivity silicon etching solution and use method thereof
CN110767590A Method for aligning and bonding two silicon wafers by using silicon wafer notches
CN110760818A Process for growing alumina by using atomic layer deposition technology
CN110767589A SOI silicon wafer alignment bonding method
CN110660645A Method for cleaning silicon wafer at room temperature
CN110517955A A kind of method of difference size dissimilar materials hybrid integrated
CN110459555A Manufacturing process method of the back side illumination image sensor crystal round fringes without silicon fiml defect
CN110289209A A kind of processing method of SOI wafer
CN110323178A A kind of manufacturing process method in zero cavity of SOI wafer edge
CN107728284A A kind of zoom mechanism for the switching of the visual field of infrared optical imaging system two