无故障发现 NTF报告没有一定的固定格式来, 首先你要有NTF的数据(客户退回) stever 发表于 2023-2-1 10:36
接触的大部分客户知识需要8d闭环就行
8D和这个的意思不一样 canon75 发表于 2023-2-1 09:29
客户是不是要求必须写这个？
是FFA（Filed Failure Analysis)流程中关于NTF中提到要有NTF报告，所以想知道是怎样的
2015-09_Field-Failure-Analysis-in-the-Electronics-Supply-Chain_engl
本帖最后由 Dean88 于 2023-2-2 11:00 编辑參考ZVEI 流程可高效寫出報告
2015-09_Field-Failure-Analysis-in-the-Electronics-Supply-Chain_engl
Table of contents
1. Target and background of the audit standard 4
2. Definition of terms 5
3. Questionnaire for the electronics supply chain in accordance with VDA 6
3.1 Planning the field failure analysis 6
3.1.1 Field failure analysis process 6
3.1.1.1 Process description 6
3.1.1.2 Implementation in the organisation 6
3.1 Planning of the field failure analysis 7
3.1.2.1 Diagnosis scope 7
3.1.2.2 Diagnosis in the supply chain 8
3.1.2.3 Triggering criteria for the NTF process 8
3.1.2.4 Test specification 8
3.1.2.5 Destructive tests 9
3.2 Diagnosis of the field failure part 9
3.2.1 Testing and documentation 9
3.2.1.1 Incoming goods 9
3.2.1.2 Logistics 9
3.2.2 Parts analysis process 10
3.2.3 Resources 10
3.2.3.1 Staff resources 10
3.2.3.2 Material resources 11
3.2.4 Efficiency of the diagnosis 11
3.2.4.1 Key performance indicators (KPI) 11
3.2.4.2 Effectiveness 11
3.2.4.3 Result of the diagnosis 11
3.3 NTF process 12
3.3.1 NTF guideline 12
3.3.2 NTF investigation 14
3.4 Problem analysis 14
4. Case studies 15
4.1 Standard component in the diagnosis for Tier N 15
4.2 Delamination of an IR diode 15
4.3 Moisture level 15
4.4 Oxygen sensor not functioning 16
4.5 Randomly occurring spikes on output 16
4.6 Line failure at low temperature test with a high vout signal 16
4.7 Functional defects in the engine's gas and air supply system 17
5. List of abbreviations 17
Dean88 发表于 2023-2-2 10:56
參考ZVEI 流程可高效寫出報告
2015-09_Field-Failure-Analysis-in-the-Electronics-Supply-Chain_engl
Tab ...
Much appreciate! NTF是指找不到问题，而不是问题不复现:注——在我接触到一般指客退三包品，退回进行复检/复测等手段分析产品都是好，退品找不到问题；即问题不复现，都归类为NTF范围； 最后只能通过设计实验场景来进行验证、分析； Dean88 发表于 2023-2-2 10:56
參考ZVEI 流程可高效寫出報告
2015-09_Field-Failure-Analysis-in-the-Electronics-Supply-Chain_engl
Tab ...
{:1_89:} darkboy01 发表于 2023-2-1 09:37
NTF一般是用8D报告去分析
不应该吧