Effect of ceramic capillary parameters on bonded morphology and strength

doi:10.3390/mi12010024

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Effect of ceramic capillary parameters on bonded morphology and strength
	Cao, Jun 6; Zhang, Junchao 6; Song, Kexing 1; Wu, Baoan 5; Ding, Yong 4; Chen, Dingbiao 3; Ding, Yutian 2
刊名	Micromachines
	2021
卷号	12 期号:1 页码:1-15
关键词	Gold alloys Gold metallography Morphology Scanning electron microscopy Wire Ball diameter Ceramic capillary Cutting angles Geometry parameter Hole diameter Irregular shape Neck morphology Working face
DOI	10.3390/mi12010024
英文摘要	The effects of the geometry parameters of a ceramic cleaver on the morphology of ball and second bonded points were studied using an automatic wire bonder, push pull tester, scanning electron microscope, ceramic capillary with different geometric parameters and 25.4 µmAg-5Au bonding alloy wire, etc. The result shows that when the inner hole diameter (IHD) of the ceramic capillary is 1.3 times the diameter of the alloy wire (33 µm), the neck morphology of the ball bonded point (first bonded point) meet the requirements. The neck of the ball bonded point appeared to fracture when the IHD is 26 µm; The neck of the ball bonded point appeared as an irregular shape when the IHD is 41 µm. When the inner cutting angle diameter (ICAD) is 64 µm, the size of the mashed ball diameter (MBD) is qualified. When the ICAD is 51 µm, the MBD is too large and mashed ball overflows the pad. When the ICAD is 76 µm, the ball bonded point is too high. When the inner cutting bevel angle (ICBA) is 100, the MBD size meets the requirements of the pad. When the ICBA was reduced to 70, the ball bonded point is eccentric. When the ICBA was increased to 120, the MBD is too large and is connected to the adjacent pad contact. The size of the fish tail of the second bonded point (second bonded point) changed in the same direction as the tip diameter (TD) changes. When the TD is 178 µm, the fish tail shape is regular and symmetrical. When the working face angle (WFA) is 8 and the outer circular radius (OCR) is equal to the diameter of the alloy wire (25.4 µm), the fish tail shape is regular. When the WFA is higher than 11 or the OCR is higher than 30 µm, the fish tail will appear as virtual welding, and when the WFA is less than 4, the fish tail of the second bonded point will break due to thinning. When the OCR is less than 20 µm, the fish tail of the second bonded point is too long and causes a short circuit. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000610534100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147183]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang; 471000, China; 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China 3.Changzhou Hengfeng Special Conductor Co., Ltd., Changzhou; 213000, China; 4.Zhejiang Tony Electronic Co., Ltd., Huzhou; 313008, China; 5.Chongqing Materials Research Institute Co., Ltd., Chongqing; 400700, China; 6.School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo; 454000, China;
推荐引用方式 GB/T 7714	Cao, Jun,Zhang, Junchao,Song, Kexing,et al. Effect of ceramic capillary parameters on bonded morphology and strength[J]. Micromachines,2021,12(1):1-15.
APA	Cao, Jun.,Zhang, Junchao.,Song, Kexing.,Wu, Baoan.,Ding, Yong.,...&Ding, Yutian.(2021).Effect of ceramic capillary parameters on bonded morphology and strength.Micromachines,12(1),1-15.
MLA	Cao, Jun,et al."Effect of ceramic capillary parameters on bonded morphology and strength".Micromachines 12.1(2021):1-15.