KNOWN GOOD DIE THE SureCHIPTM PROCESS

KNOWN GOOD DIE
THE SureCHIP PROCESS
TM
THE IR ADVANTAGE
◗ KGD testing equal to package part testing
◗ 100% Avalanche capability for more
than 75A
◗ Singulated testing, eliminating lateral
current paths
◗ Accurate testing for RDS(on)
◗ Voltage ratings up to 1200V
◗ Leakage current testing down to nA range
◗ Pogo pins provide accurate voltage and
resistance readings
◗ Hybrid modifications enable cleaner
noise environment
◗ Each die is warranted to be
electrically good
KGD PACKAGE OPTIONS
T&R option:
T&R dimensions are according to die Size.
Chip pack option:
International Rectifier’s SureCHIP Program is a process regimen that combines
high-volume manufacturing and assembly with precision parametric testing and
special packaging to deliver Known Good Die (KGD) power semiconductors. The
KGD process provides measurably higher yields and is an economically viable
solution in the manufacturing of multi-chip modules (MCMs). As part of the
SureCHIP process, individual good die from probed and sawn wafers are transferred
to a custom-designed test nest for 100% electrical and visual testing.
SureCHIP power semiconductor die are packaged into tape and reel in a nitrogen
atmosphere or into chip trays for shipment. The SureCHIP KGD process is
qualified for 100% DC parametric testing. Additionally, avalanche testing on
MOSFETs and short circuit testing on IGBTs can be performed.
Tray packaging option can be either
4” x 4” or 2” x 2” (outside dimensions).
die.irf.com
For technical support, call our Technical Assistance Center in
N. America at +1.310.252.7105 and in Europe at +44.208.645.8015
THE POWER MANAGEMENT LEADER
Comparison of Wafer Level Testing of
RDS(on) vs. IR’s KGD Solution
WAFER LEVEL TESTING
THE POWER MANAGEMENT LEADER
Probe Needles
Die
Probe Needles
Wafer
Vacuum
Chuck
Individual Die from probed and
sawn wafer are transferred to a
custom designed test nest for
electrical testing
Sense
Power
1. Multiple contacts between backside of wafer
and chuck tester
2. Die to Die interference cannot be isolated
3. RDS(on) accurate down to 20mΩ
4. IDRAIN measurements constrained to less than 10A
5. Parallel testing resulting in multiple signal paths
that can effect results
6. Key measurements impacted by Kelvin contacts
over entire backside of wafer
7. High risk for final application due to dicing operation
SureCHIP is packaged in tape
after passing 100% electrical
testing and visual inspection
IR’S KGD LEVEL TESTING
Probe Needles
Die is fully tested in the
proprietary test nest with the true
Kelvin connections to enable
measurements as high current
Probe Needles
Die
SAMPLE AVALANCHE TEST RESULTS
Sense
Power
1. Pogo pins provide uniform contact
2. Direct contact with isolated Die
3. RDS(on) accurate down to 2.5mΩ
4. IDRAIN Measurements possible to greater than 75A
5. Singulated testing, eliminating lateral current paths
6. Hybrid modifications enable cleaner noise environment
7. Kelvin contact fixed to single location for single die
8. Singulated die usually pre-screened for mechanical
defects
die.irf.com
FS8272