Interfacial Microstructure between Copper Ribbon and Nickel-coated Copper Plate Formed by Ultrasonic Bonding

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Microstructure Examination of Copper Wafer Bonding

The microstructure morphologies and oxide distribution of copper bonded wafers were examined by means of transmission electron microscopy (TEM) and energy dispersion spectrometer (EDS). Cu wafers exhibit good bond properties when wafer contact occurs at 400°C/4000 mbar for 30 min, followed by an anneal at 400°C for 30 min in N2 ambient atmosphere. The distribution of different defects showed th...

متن کامل

Interfacial Morphologies and Possible Mechanisms of Copper Wafer Bonding

The microstructure morphologies of copper bonded wafers were examined by means of transmission electron microscopy (TEM) and atomic force microscope (AFM). Morphologies of non-distinct, zigzag and distinct interfaces in the bonded layer are observed. A strong relationship between the roughness of surfaces and the individual steps in bonding initiation was found. We propose three different mecha...

متن کامل

Room temperature wedge-wedge ultrasonic bonding using aluminum coated copper wire

The purpose of our study is to evaluate the feasibility of room-temperature wedge-wedge bonding using commercially available 25 μm copper wires, coated with aluminum. Bonding quality, reliability and aging resistance of the wire bonds have been investigated using standard wire pull tests immediately after bonding and after accelerated life tests, including temperature storage at 125 °C and 150 ...

متن کامل

Microstructure evolution and abnormal grain growth during copper wafer bonding

Evolution of microstructure morphologies and grain orientations of Cu-Cu bonded wafers during bonding and annealing were studied by means of transmission electron microscopy, electron diffraction and X-ray diffraction. The bonded Cu grain structure reaches steady state after post-bonding anneal. An abnormal (220) grain growth was observed during the initial bonding process. Upon annealing, the ...

متن کامل

Next Generation Nickel-Based Bond Pads Enable Copper Wire Bonding

Copper wire bonding has huge cost advantages over gold wire bonding. As a result, low pin count, heavy wire applications have already been converted to copper wire and many companies are in high volume production. Recently, with the price of gold skyrocketing, conversion of high pin count (>250 I/O), high performance applications to Cu has dramatically accelerated. These high performance device...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY

سال: 2013

ISSN: 0288-4771

DOI: 10.2207/qjjws.31.188s