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Effect of Reflow Profile on SnPb and SnAgCu Solder Joint Shear Force

Technical Library | 2023-01-17 17:27:13.0

Reflow profile has significant impact on solder joint performance because it influences wetting and microstructure of the solder joint. The degree of wetting, the microstructure (in particular the intermetallic layer), and the inherent strength of the solder all factor into the reliability of the solder joint. This paper presents experimental results on the effect of reflow profile on both 63%Sn 37%Pb (SnPb) and 96.5%Sn 3.0%Ag 0.5%Cu (SAC 305) solder joint shear force. Specifically, the effect of the reflow peak temperature and time above solder liquidus temperature are studied. Nine reflow profiles for SAC 305 and nine reflow profiles for SnPb have been developed with three levels of peak temperature (230 o C, 240 o C, and 250 o C for SAC 305; and 195 o C, 205 o C, and 215 o C for SnPb) and three levels of time above solder liquidus temperature (30 sec., 60 sec., and 90 sec.). The shear force data of four different sizes of chip resistors (1206, 0805, 0603, and 0402) are compared across the different profiles. The shear force of the resistors is measured at time 0 (right after assembly). The fracture surfaces have been studied using a scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS)

Heller Industries Inc.

SMT Dispensing Pumps for Integration

SMT Dispensing Pumps for Integration

New Equipment | Dispensing

Retrofit existing system with Innovative Dispensing Technology for Excellent Dispense Control and Repeatability Advanced pump technologies available for retrofitting include: True Volumetric Pump, Precision Auger Pump, Simplified Jetting Pump and Ti

GPD Global

SimpleCoat, Cost Effective Solution for Conformal Coating.

SimpleCoat, Cost Effective Solution for Conformal Coating.

Videos

http://www.gpd-global.com Tilt-and-Rotate configuration is available. Full featured programming makes conformal coating processes quick and easy. 3-axis Conformal Coating System for printed circuit boards that provides a reliable robotic platform f

GPD Global

Jetting Pump - NCM5000

Jetting Pump - NCM5000

New Equipment | Dispensing

Jetting Simplified Jetting pumps are excellent for dispensing small volumes of fluid at high rates of speed. The NCM5000 simplifies jetting to its basic elements - this means easy set up, cleaning, and maintenance for you. The drive system is design

GPD Global

Time Pressure Liquid Dispensing Pump with Foot Switch or Dry Contact

Time Pressure Liquid Dispensing Pump with Foot Switch or Dry Contact

New Equipment | Dispensing

Time Pressure Liquid Dispensing Pump with Foot switch / Dry contact A great addition to Fully Automatic Dispensing System Time pressure is a versatile method of dispensing that functions across a wide range of viscosities. This dispensing method wo

GPD Global

Jetting Is Redesigned with GPD Global's NEW NCM5000 Dispense Pump

Industry News | 2013-07-22 09:54:27.0

GPD Global has introduced its new NCM5000 dispense pump for easy jetting. With only two wetted parts and no seals or springs to replace or adjust, field operation is simple.

GPD Global

Time Pressure with Real Time Process Control FPC

Time Pressure with Real Time Process Control FPC

Videos

Time Pressure Liquid Dispensing Pump with Foot switch / Dry contact A great addition to Fully Automatic Dispensing System Time pressure is a versatile method of dispensing that functions across a wide range of viscosities. This dispensing method wo

GPD Global

No drip or drool across a wide range of fluid viscosities (low-to-mid and low-to-high) with GPD Global PCD Pumps for total control of your dispensing fluids.

No drip or drool across a wide range of fluid viscosities (low-to-mid and low-to-high) with GPD Global PCD Pumps for total control of your dispensing fluids.

Videos

http://www.gpd-global.com No drip no drool across a wide range of fluid viscosities (low-to-mid and low-to-high). No manual adjustment to compensate for pump variability. Truly Volumetric PCD Pumps for total control of dispensing fluids. Ability to

GPD Global

Jetting Pump (NCM5000) dispenses glue

Jetting Pump (NCM5000) dispenses glue

Videos

Jetting Simplified Jetting pumps are excellent for dispensing small volumes of fluid at high rates of speed. The NCM5000 simplifies jetting to its basic elements - this means easy set up, cleaning, and maintenance for you. The drive system is design

GPD Global

Conformal Coating & the Latest Dispense Technology at SMTAI

Industry News | 2017-09-07 23:32:44.0

GPD Global will exhibit at the upcoming SMTA International 2017. At booth# 216, on display is an automated Conformal Coating Machine with excellent repeatability for under $40,000. SimpleCoat is a NEW low cost, inline, simple Conformal Coating System with full featured programming making the conformal coating processes quick and easy to set up.

GPD Global

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