- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄368875 > 24571A1 Daisy Chain Samples PDF資料下載
參數(shù)資料
| 型號(hào)： | 24571A1 |
| 英文描述： | Daisy Chain Samples |
| 中文描述： | 菊花鏈樣品 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大?。?/td> | 297K |
| 代理商： | 24571A1 |
Publication# 24571
Issue Date:
October 25, 2001
Rev:
A
Amendment/
+1
Daisy Chain Samples
Application Note
Daisy Chain samples are non-functional parts with a
pattern of inter-connected balls. These samples are
typically assembled onto a printed circuit board (PCB)
with matching patterns. Once assembled on the match-
ing PCB, all balls are connected creating a continuous
network. Refer to Figure 1.
Notes:
1. “_____” Solid traces are Daisy Chain patterns on the FBGA package.
2. “- - - - -” Dash traces are Daisy Chain patterns on the PCB.
3. ‘a(chǎn)’, ‘b’ are the input and output of the network for the device.
4. ‘c’, ‘d’ are the input and output of a separate network for the support balls.
Figure 1.
FBGA 32 Mb and 64 Mb Silicon Daisy Chain with Matching PCB Schematic (Top View)
Daisy Chain samples are primarily requested by OEMs
to perform assembly evaluations. Prior to production,
an OEM will generally solder daisy chain samples on to
a daisy chain PCB and perform Open/Short testing to
check for misalignments. This test will help an OEM
characterize its assembly process and equipment prior
to full production.
Daisy Chains are also used in Second Level Solder-
Joint Board Reliability studies. The daisy chain sam-
ples are assembled onto the matching PCB and sub-
jected to temperature cycling in an oven. Board Level
Reliability tests are tools to help predict and measure
the expected life of packages. For more in depth infor-
mation on Second Level Solder-Joint Board Reliability,
please refer to “Reliability Evaluation of Chip Scale
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 245NQ015PBF | DIODE 240 A, 15 V, SILICON, RECTIFIER DIODE, D-67, HALF PACK-1, Rectifier Diode |
| 245QS16E | GaAs MMIC SP3T NON-REFLECTIVE SWITCH, DC - 3.5 GHz |
| 246002 | USB LEAD 3.0M A PLUG A PLUG |
| 246003 | 3V Dallastat Electronic Digital Rheostat |
| 240101 | USB SOCKET PCB 90 DEGREE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 2457-20 | 制造商:Milwaukee Electric Tool 功能描述:M12™ Cordless 3/8" Ratchet - Tool Only |
| 24572-001 | 制造商:Pentair Technical Products / Hoffman 功能描述:RATIOPAC PRO 3HE 28TE 255T 制造商:PENTAIR TECNICAL PRODCUTS 功能描述:RATIOPAC PRO 3HE 28TE 255T |
| 24572-002 | 制造商:SCHROFF 功能描述:CASE 3U 255MM 42HP 制造商:Schroff/Pentair Electronic Packaging 功能描述:CASE, 3U, 255MM, 42HP 制造商:SCHROFF 功能描述:CASE, 3U, 255MM, 42HP; Enclosure Material:Aluminium; Body Colour:Silver; Cabinet Style:Desktop; Rack U Height:3; External Height - Imperial:5.25"; External Height - Metric:133.35mm; External Width - Imperial:8.4"; External Width - ;RoHS Compliant: Yes |
| 24572-003 | 制造商:SCHROFF 功能描述:CASE 3U 315MM 42HP 制造商:Schroff/Pentair Electronic Packaging 功能描述:CASE, 3U, 315MM, 42HP 制造商:SCHROFF 功能描述:CASE, 3U, 315MM, 42HP; Enclosure Material:Aluminium; Body Colour:Silver; Cabinet Style:Desktop; Rack U Height:3; External Height - Imperial:5.25"; External Height - Metric:133.35mm; External Width - Imperial:8.4"; External Width - ;RoHS Compliant: Yes |
| 24572005 | 制造商:Schroff/Pentair Electronic Packaging 功能描述:ENCLOS HSNG FOR 3U 84HP 315MM |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。