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Solder Preform

Date:2013-11-23 Hitcount:12930
  • Feature
  • Detail
  • Solder preform may be manufactured into different shapes and dimensions , usually applied in some special occasions for shape and quality requirements, such as rectanggle, frame, sleeve and disc.

    Precisely increase solder volume in paste applications, be ale to reinforce the welding spot, reduce flux spattering and flux residues. Put the soder preform with flux coatting to reduce solder operation, and avoid coating layer by hands. Ensure solder consistency, because weights of the solder preforms are in common. Requirements about technical ability of employees are lower. And solder preforms endow with virture of well solderability, no-clean, lower-cost,good function of environmental protection and comfortable to package and storage.


    Characteristics:

    1、Solder preform can be made into different shapes and dimensions to satisfy special clients.

    2、Well solderability and reduce the flux spattering and flux residues.

    3、Precisely increase solder volume in paste applications.

    4、Precisely control solder volume in stand alone applications, with solid flux layer distributed uniformly on its surface.

    5、Realize to be packaged in tape and reel, which provide an easy implement method.


  • ---- Typical sketch of solder preform


    ----Typical solder preform

    Type

    Dimensions

    Volume

    a

    b

    c

    mm

    inch

    mm

    inch

    mm

    inch

    mm3

    inch3

     Rectangle

    1.00

    0.039

    0.50

    0.020

    0.50

    0.020

    0.25

    0.000015

     Rectangle

    1.27

    0.050

    1.27

    0.050

    0.254

    0.01

    0.41

    0.000025

     Rectangle

    8.00

    0.315

    3.50

    0.138

    0.254

    0.01

    7.112

    0.000434

     Rectangle

    2.01

    0.079

    1.30

    0.051

    0.76

    0.028

    1.98

    0.000113

     Rectangle

    3.58

    0.140

    1.52

    0.06

    0.77

    0.03

    4.17

    0.000254

     Rectangle

    2.00

    0.079

    1.27

    0.05

    1.27

    0.05

    3.23

    0.000198

     Rectangle

    12.5

    0.492

    12.5

    0.492

    2

    0.079

    312.5

    0.019070

     Sleeve

    3.06

    0.120

    1.47

    0.058

    1.20

    0.047

    6.79

    0.000414

     Sleeve

    4.0

    0.157

    2.40

    0.0945

    0.4

    0.0157

    3.84

    0.000233

     Sleeve

    3.5

    0.138

    2.1

    0.0827

    0.9

    0.0354

    6.615

    0.000404

     Disc

    5.00

    0.197

    -

    -

    0.50

    0.020

    9.82

    0.000599


    ---- Typical alloy of solder preform

    Alloy

    Flux

    Flux type

    Melting point ()

    Densityg/cm3)

    Sn3.0Ag0.5Cu

    1-2%

    RMARA, NC

    217-219

    7.38

    Sn0.3Ag0.7Cu

    1-2%

    RMARA, NC

    217-227

    7.41

    Sn50In

    1-2%

    RMARA, NC

    118-125

    7.30

    Sn15In3.8Ag

    1-2%

    RMARA, NC

    210

    7.40

    Sn58Bi

    1-2%

    RMARA, NC

    138

    8.56

    Sn3.8Ag0.7Cu

    1-2%

    RMARA, NC

    217

    7.40

    Sn37Pb

    1-2%

    RMARA, NC

    183

    8.41

    Sn36Pb2Ag

    1-2%

    RMARA, NC

    179-182

    8.43

    Note:Flux type,content, shapes and dimensions of solder preform can be designed and manufactured accordingly.We also have other types solder preform with different alloy components and flux coating besides the above table.Please contact us for details.



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