Fluxless Soldering in Activated Hydrogen Atmosphere

نویسندگان

چکیده

ABSTRACT A novel hydrogen activation technology based on activated or electron attachment (EA) has been developed for fluxless soldering at ambient pressure and normal temperature. The the potential to be used several applications in electronics packaging industry. Recent work from a joint effort between Air Products Sikama International alpha trials of production-scale furnace flux-free wafer bump reflow Electron Attachment is also discussed.

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

Fluxless Die Attach by Activated Forming Gas

Eutectic god-tin (Au80Sn20) is widely used as the die-attach material for making radio-frequency (RF) and microwave devices. The metallic bonding is typically achieved by soldering using a gold-tin preform in a forming gas containing hydrogen (H2) and nitrogen (N2) to a peak temperature at 300 ̊C. The performance and reliability of the devices are strongly dependent on the quality of the die-att...

متن کامل

I 3 3 1 1 1 1 ! n 1 1 1 1 1 1 I 1 I REDUCTION OF SOLVENT USE THROUGH

Conventional soldering typically requires fluxing to promote wetting. Halogenated solvents must then be used to remove the flux residues. While such practice has been routinely accepted throughout the DOE weapons complex, new environmental laws and agreements will eventually phaseout the use of these solvents. Solvent substitution or alternative technologies must be developed to meet these rest...

متن کامل

Effect of Thermal Aging on the Impact Strength of Soldered Bumps under Formic Acid Atmosphere

In this study, we have investigated the effect of thermal aging on impact strength of Sn-Ag-Cu solder bumps in fluxless soldering process using formic acid atmosphere. We conducted impact tests on as-reflowed and thermally-aged solder bumps, which were fabricated on either formic acid atmosphere or a liquid flux. The results indicated that the morphology of the intermetallic compound layers in ...

متن کامل

Hydrogen Abundance in Jupiter ' s Atmosphere 1 , ~

Spectra of Jupiter showing the (4-0) S (1) hydrogen quadrupole line at 6367.80 A have been used to derive the amount of hydrogen contributing to the formation of the line : 75 ~-15 kin-arm, neglecting scattering. This and measurements by other authors are used to test whether the C/H ratio for Jupiter's atmosphere is equal to the solar value. ~NTRODUCTION The main constituents of Jupiter's atmo...

متن کامل

A hydrogen-rich early Earth atmosphere.

We show that the escape of hydrogen from early Earth's atmosphere likely occurred at rates slower by two orders of magnitude than previously thought. The balance between slow hydrogen escape and volcanic outgassing could have maintained a hydrogen mixing ratio of more than 30%. The production of prebiotic organic compounds in such an atmosphere would have been more efficient than either exogeno...

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: Proceedings of the ... International Symposium on Microelectronics

سال: 2021

ISSN: ['1085-8024']

DOI: https://doi.org/10.4071/1085-8024-2021.1.000080