HMC1023PCB HONEYWELL [Honeywell Solid State Electronics Center], HMC1023PCB Datasheet - Page 4

• Manufacturer Part Number: HMC1023PCB
• Description: 3-AXIS MAGNETIC SENSOR
• Manufacturer: HONEYWELL [Honeywell Solid State Electronics Center]

HMC1023
SENSOR PRODUCTS
Mounting Considerations
When mounting the Honeywell HMC1023 on a circuit board, please consider the following advice for ball grid array
component attachment.
Ball Grid Array attachment/removal to printed circuit boards is precisely controlled thermal solder reflow process. To
prevent internal electrical damage and package cracking, do not use conventional soldering iron/solder station tools. If
you do not have experience and the reflow oven, please have a qualified BGA rework technician do the work for you.
The reflow profile show below is the recommended profile for HMC1023 package attachment.
Melting temperature for the HMC1023 balls is at 180°C. The recommended rise and fall temperatures should be no
greater than 3°C/sec to prevent mechnical stresses or “popcorning”. Peak external temperature the part should be
exposed to is between 200 to 210°C. When exposed a high temperature, such as the solder reflow process, the
internal connections in the package could sustain permanent damage, leaving open connections. 225°C is the melting
point of solder inside the HMC1023 Ball Grid Array package. Do not expose the part to this level of temperature.
If using solder paste, we recommend Kester SN62 solder paste with water soluble flux R560. This has a melting point
around 180°C. Kester recommends a pre-heating zone from ambient temperature to 180°C for 2 to 4 minutes
maximum. The first part of this pre-heating zone ramps up from ambient to 150°C in 90 seconds with a ramp rate of
less than 2.5 degrees C per second. The soak zone should last from 60 to 90 seconds (2 minutes maximum) and
ramp up in temperature from 150 to 180°C at 0.5 to 0.6 °C/ sec. The reflow zone should last for 30 to 90 seconds
maximum (40 to 60 seconds is ideal) and peak in temperature between 200 and 210°C with a ramp of 1.3 to
1.6°C/sec.
The reflow parameters can vary significantly and excellent reflow results can still be achieved. A thin layer of paste
flux or a 2 to 3 mil layer of solder paste applied to the mother-board prior to placing the HMC1023 is helpful. The
profile can be verified by placing a thermocouple between the HMC1023 and motherboard.
Solid State Electronics Center • www.magneticsensors.com • [phone] • Page 4