Ordering number : ENN8003A
Replace the SANYO Semiconductor NEWS No. 8003 with 8003A.
Announcement of Changes to Inner Box Markings and Pin Plating Associated with
Switching to Lead-Free Specifications for IC Pins
(Products Affected: BIP Through Hole Devices)
Thank you for your continued use of our semiconductor products.
Please note that, as captioned above, SANYO is making the following changes.
Please make a note of this if you use these or related products.
1. Changes
(1) The plating material used on the IC pins has been changed from SnPb plating to a SnBi (1 to 4% Bi by weight)
material.
(2) The words "LEAD FREE" have been added to the markings on the inner box (packing case) and the suffix "-E" has
been added to the product number. (See the following page.)
2. Affected Products
See the BIP Trough Hole Devices table.
3. Reason
The SANYO Electric Group has established the "Action E21"environmental action plan to work together for con-
tinued improvement in SANYO's environmental performance. As part of these activities, SANYO Electric Semi-
conductor Company is progressing with its plan to eliminate all lead from lead pins by the end of 2005.
To move forward with its efforts, SANYO is informing its customers of these changes in devices for which lead-free
specification environments (development of manufacturing locations for mass-production and achievement of
required heat resistance characteristics) are already in place.
Changes only affect the material of lead pin plating for the targeted products. Therefore, the affected products will
not experience any deviation electrically or in terms of their reliability. Furthermore, these changes will not affect
current mounting processes used by customers. Device specifications fully support conversion of customer’s existing
manufacturing lines to lead-free lines.
4. Implementation data
Shipment of lead-free products will begin starting November, 2005. The change will be applied sequentially to differ-
ent products. The exact date of the start of shipments may be slightly delayed because of stock conditions for some of
the products. Please contact your SANYO sales representative if you have any questions or require more detailed
information regarding this change.
Details (Continued on next page.)
(1) Notes on the heat resistance of lead-free products
(2) Examples of lead-free product labeling
(3) Notes on solderability
(4) Plated joint strength (reference data)
Continued on following page.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O3005 HK IM No.8003-1/5
Continued from preceding page.
[Details]
(1) Notes on the heat resistance of lead-free products.
Heat resistance temperature profile of lead-free products
Lead-free production
Flow
260°C, 10s
Hand Solder 380°C, 3s
(2) Examples of lead-free product labeling
"-E" added to the end of type number
Non lead-free production (conventional)
260°C, 10s
350°C, 3s
(P) TYPE
--E
"LEAD FREE" indication
)
(
(IT) L01
12345
000000--000000
13
(Q) QIY
123456
LEAD FREE
Indication
(Z) SPECIAL
Z
12345678901
(
DIFFUSION
ASSEMBLY
(
(3) Notes on solderability
Evaluation Sample: SIP-10 (Material: Cu) and SIP-16 (Material: 42 Alloy)
Evaluation solder
Temperature/Time
Flux
Sn-Pb
230°C/3s
Used (RMA type)
Sn-3.0Ag-0.5Cu
245°C/3s
Used (RMA type)
Sn/Sn-Bi Plating
Sn-Pb
230°C/3s
Used (RMA type)
(Lead-free Product)
Sn-3.0Ag-0.5Cu
245°C/3s
Used (RMA type)
*1: Acceptability criteria: More than 95% of bathing area must be wet with solder.
Sn-Pb (Current Product)
(4) Plated joint strength (reference data)
100
Result *1
Passed
Passed
Passed
Passed
Plated Joint Strength (N)
80
Sn-Pb Solder
60
Sn-Ag-Cu Solder
40
20
0
Temperature Cycle
Type of Plating
0
Sn-Pb
1000
0
1000
Sn/Sn-2.5Bi
0
Sn-Pb
1000
0
1000
Sn/Sn-2.5Bi
• Test equipment: Hooking extension tester
• Evaluation board: Glass-epoxy resin
• Temperatare cycle condition: -40°C (30 minute hold) to +125°C (30 minute hold)
• SANYO acceptance criteria: The joint strength after 1000 cycles must be at least 50% of the initial strength.
Note: The results shown above are for reference and do not constitute a guarantee.
No.8003-2/5
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