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解決方案
首頁 > 解決方案 > 可靠性

可靠性

多層板上的通孔填充率

   多種因素造成了通孔焊料不一致的通孔填充率。Alpha 知識(shí)淵博的技術(shù)服務(wù)團(tuán)隊(duì)可對(duì)工藝參數(shù)進(jìn)行現(xiàn)場(chǎng)運(yùn)行分析（如助焊劑使用不當(dāng)或低預(yù)熱設(shè)置），以解決這些問題。我們的專家還可以幫助計(jì)算實(shí)現(xiàn)可靠焊點(diǎn)所需的正確焊料量。

提高通孔填充率的 Alpha 產(chǎn)品：


 

Alpha 焊料合金

使用下圖確定哪種 Alpha 合金適合您。只需將進(jìn)行組裝的類型與適當(dāng)?shù)暮辖饘?duì)應(yīng)起來即可。

 Assembly Type



 IIIIIIIV


Simple, single sided, FR2 / CEM-1 laminates
Dual sided FR-4 w/ PTH's, 1.6mm thick, up to 4 inner copper layers, metallized pad finishes
Complex, up to 12 inner copper layers, OSP pad finishes, all processing in air
>2.4mm thick, >12 inner copper layers, large high heat capacity components





 
 SACX Plus 0807


 
 SAC alloys label for table

1%+ flux solids, L0, pin testable
 		Flux Type

SACX Plus 0307


4%+ flux solids, L or M0, pin testable
 SnCX Plus? 07





4%+ flux solids, L or M0, moderately pin testable






7%+ flux solids, L,M or H1, not pin testable
0oC to 100oC - standard profile cycles
0oC to 100oC - standard and shock profile cycles
- 25oC to 125oC - standard and shock profile cycles
- 45oC to 125oC - standard and shock profile cycles


Thermal Fatigue Resistance




 

液體助焊劑

ProductLead-FreeSnPbHigh ReliabilityLow AgWater Soluble
EF-2210 
XX
X
EF-5601
XX 

X
EF-6103XXXX
EF-6850HFX
XX
EF-8000XXXX
EF-8300XXXX
EF-8800HFX
XX
EF-9301XXXX
EF-12000XX
X
RF-800
X



 


預(yù)成型焊料

  • Alpha 編帶和卷盤預(yù)成型坯件

SizeDimensionsVolumePb-FreeSn-PbSnBiAg
abc
inchmmmmmm3
020105030.510.250.250.032
X
0201S04030.440.280.280.034X

020205050.510.510.250.065XX
0301508380.760.380.250.072
X
03015S060350.600.350.350.074X

0402H1006H1.000.600.250.150XX*
040210061.000.500.500.250XXX
0402B100551.000.550.550.303XX*
0603H1608H1.600.800.500.640XX*
060316081.600.800.801.024XXX
0805H2013H2.011.300.401.045XX*
080520132.011.300.761.986XXX
0805S2013S2.011.301.303.397XX*
120630153.001.470.773.396XX*
140635153.561.520.774.167XX*

*生產(chǎn)將取決于市場(chǎng)需求，請(qǐng)咨詢您當(dāng)?shù)氐匿N售代表了解供貨情況

  • 助焊劑涂敷預(yù)成型焊料墊圈


Washer

solder preform washer

OD
Min = .020" (0.51mm)

Max = 3.00" (76.0mm)


ID
Min = .008" (0.2mm)
Max = OD - .010" (0.25mm)
T (Thickness)
Min = .002" (0.05mm)
Max = .110" (2.80mm)


解決方案

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