CMK's E-spec products meet the original environmental standards established by CMK. CMK thus contributes to the reduction of environmental load through the supply of ech-products.
Concept of E-spec Standerd
The E-spec standards consist of E-spec requirements and selection standards, In compliance with customer wishes,products meeting requirements may display the E-spec marks.
Concept of E-spec Standards
|Chlorine content||0.09wt% or less|
|Bromine content||0.09wt% or less|
|Combined chlorine and bromine content||0.15wt% or less|
|FR-FR-1 Grade||0.15wt% or less|
|CEM-3 Grade||0.15wt% or less|
|RF-4 Grade||0.15wt% or less|
By using base materials that meet the JPCA halogen-free standards, we reduced the halogen content of our products to 1/60 (compared to previous products).
|Name Grade||Peak temperature||Reflow temperature / Reflow time||Reflow cycles|
|CEM-3||250°C||230°Cor higher/50±5 seconds||2|
|FR-4||260°C||230°Cor higher/60±5 seconds||2|
|Heat-resistant preflus/ water soluble||○||○||◎||◎||○||3 months|
|Gold plating||○||◎||◎||○||△||6 months|
|Lead-free solder leveler
Relative comparison based on internal data and market surveys