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PARAMIT Market

Feedback

23/5/2014

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CUST. CUST. PROD. NO. PRM. PROD. NO. COMPLNT RCV DT COMPLAINT

DESCRIPTION

2013/04888 BOSCH 1 607 233 139 900.0258.02C 10-Dec-13 TOOL VIBRATION,JUST HALF WAVE

SHOWED IN

OSCILLOGRAPH,

DATECODE 25-13

2013/04888 BOSCH 1 607 233 139 900.0258.02C 10-Dec-13 VIBRATION BECOME

NO SOFTSTART,

DATECODE 30-13

2014/01742 BOSCH BSH 1 607 233 139

ASSY

BSH-

900.0258.02@C

21-Apr-14 Vibration

Date code: 07-14

2014/01742 BOSCH BSH 1 607 233 137

ASSY

BSH-

900.0257.02@C

21-Apr-14 Vibration

Date code: 51-13

C4 crack ( found by Bosch)

crack

Latest Feedback

http://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2013-04888.xlsxhttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2013-04888.xlsxhttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2014-01742.xlsxmailto:BSH-900.0258.02@Cmailto:BSH-900.0258.02@Chttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2014-01742.xlsxmailto:BSH-900.0257.02@Cmailto:BSH-900.0257.02@Cmailto:BSH-900.0257.02@Cmailto:BSH-900.0257.02@Cmailto:BSH-900.0257.02@Chttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2014-01742.xlsxmailto:BSH-900.0258.02@Cmailto:BSH-900.0258.02@Cmailto:BSH-900.0258.02@Chttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2014-01742.xlsxhttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2013-04888.xlsxhttp://j/Quality%20Assurance/LEMTRO/QUALITY/520-Final%20QA/CRAR%20Log/2014/Customer%20FA/2013-04888.xlsx

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Chronology of Problem

Date 27/3/2013 16/5/2014Report B7-151a.doc On 10/12/2013 and

21/4/2014

Cause Solder iron touch

capacitor

Countermeasure Solder iron C type>>F type

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Before : C type solder bit After : flat type solder bit

C typeFlat type

Model : BOSCH 139 PCB ASSY (PORV 39618,39656)

Defect : Micro crack on the chip capacitor- cause by solder iron touch capacitor body

Action : Test run : Change solder iron bit from C type to flat type

No of touch

up IC

Number of

accidental

mark on

capacitor

C Type

Numbe

r of

accide

ntal

mark

on

capacit

or

F type

100 5 0

Previous

complaint

March 2013

COMPLIED

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IC short

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ICT Test pinICT able to check missing or crack component

Not near to affected area

Cause Analysis

Cant detect C4 Can detect C4

10/5/2013 10/12/2013 21/4/2014Claim

ICT

Solder Iron C-Type F-Type

17th.June 2013

Touch up mark on components

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Standard hand soldering spec

All Kaga chip parts but

in the market there are

two types of chip

components

MURATA spec

PARAMIT is using AVX

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Study data Temperature Vs Capacitor crack

PWB Temperature Time Remark

1 390 3s OK

2 390 3s OK

3 390 3s crack

4 390 5s OK

5 390 5s OK

6 390 5s OK

7 390 10s OK

8 390 10s OK

9 390 10s OK

When do testing by increase temperature 20C above previous temperature setting

(370C) >390C, one set during 390C/3s having crack problem similar to happen in

customer side

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Countermeasure

1) To check with Paramit on specification for part temperature hand soldering spec

2) Temporary use lower temperature ( follow critical part) >>>>>>285~295C

3) Attention sheet at workplace to remind touch up operator of the market claim issue

4) To further study on impact of solder tips temperature change.

as Test study showed that

a) Touch up/soldering of IC is OK even using new temperature 285C.

b) Touch up of RED area is having a problem. >>> TOUCH UP BY TECHNICIAN

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OLD Temperature Setting

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New Temperature Setting

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No Model Job No Qty on line date

1 B139D L95M912 5320 22-May

2 B137D L95B705 800 27-May

3 B139D L95M912 2088 2-Jun

4 B137D L95B705 800 3-Jun

5 B137D L97B706 1634 14-Jul

Total 10642

Cut off lot

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Set 1

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Set 2