901 n14 v29 (中英文)SMT鋼板作業標準SMT stencil operation standard

5.0 文文文文 FLOWCHART5.1 文文文文文文文 New Open Stencil Check and Accept Follow... 6.1.2 文文文文文文 Choices of Stencil Thickness Stencil thickness40N/cm.. 6.1.5 文文文文文文 Types of Openings on Stencils 文

Status

Marco Chen

10.3/10.4文文文文文文文文文/10.5 文文文文文文文文文文文文文文文/4.4 10-4 文文文文文文文文:30N/CM 文文9-3文文文文文文文文 Check list 文文 901-N14-03 /8-1 文文文文文文文

Daniel Chen

(1) 文文 5.4 /6.1 /6.4 文文文文文文 30N 文文 25N(2) 文文 6.3 文文文文:文文文 3 文文文文文文文文文文文(3) 8.0文文文 Form 文文文文文文

3.文文 6.5.4 文文文文文文4.文文 5.7.6.2 NQJ 文文文文文文

5 文文 5.7.10 文文文文文文文

6 5.7.11文文文文文文文文文文文文文

7 5.7.12 文文文文文文文文文 KM 文8.文文 5.8 文文文文文

9 ORG文文 ALL

Daniel Chen

1.文文 7.2WNC 文文文文文文 SOP2.文文 7.3NQJ 文文文文文文 SOP3.文文 6.1 文文文文文文文文文 85000 文

Kyle Young

1.文文 6.6.3 文文文文文文文文文文

3 文文文8.1 文文文文文文文(Form No:901-N14-01)文 NQJ 文文.

4 文文文5.7.7 文文文文文文文文文文文文文文文文文文., 文 NQJ 文文

5 文文 8.4 文文文文文文 Check List (Form 06),文 8.2 文文

No:901-N14-6 5.3 文文文文文文文文文文文 L736mm x W736mm x H30mm ±1.0mm文文

11 文 6.6.1 文“文文文文”文文文“文文文文文文”

Arthur SDChang

1 文文 5.7.11 文文

2 文文 5.7.13 文文

3 文文 6.9 文文文文文文文文文文文文文

9 5.12文文文文文文文文文 for NQJ&NQX

文文

1 6.9.5.2 文文文文文文文文文 10 文文,文文 SFCS 文文文文 90000 文文文文文文文WTQ文文文

Stencil life: 100 thousand times and deliver alarm message when used 90 thousand by SFCS (Only for WTQ )

2 6.8.1.2文文文文文文文文≧25N/cm文文文文文文文文文文文文文

<25N/cm文文文文< 20N/cm(文 WTQ 文文);

The point#5 tension must ≧25N/cm One of other point tension <25N/cm and can’t < 20N/cm that is acceptable.(Only for WTQ);

Rebel Ding

文文文文文文add Vietnamese translation

目目 CONTENTS

5.0 文文文文 FLOWCHART

5.1 文文文文文文文 New Open Stencil Check and Accept Follow

6.0 文文文文 ACTIVITIES DESCRIPTION

6.1 文文文文 Production of Stencils

6.1.1 文文 Method

文文文文文文文文文文文文文文文文文

Stencils for solder printing shall be cut with laser and etched with chemicals

6.1.2 文文文文文文 Choices of Stencil Thickness

Stencil thickness<0.12mm, stencil tension>40N/cm

6.1.5 文文文文文文 Types of Openings on Stencils

文文 WNC Stencil DFM 文文

According to WNC Stencil DFM

Half-sculptured or full-penetrated on the back

6.2 文文文文文文 Conditions of Stencil Use

6.3 文文文文文文 Stencil Numbering Principle

6.3.1 文文文文文文 Marking of Stencil Numbering

Automotive & Industrial Solutions BG)

cleaning; the technician of stencil cleaning station store stencils back in their shelves

identifiable after clean and inspect the stencils

6.4.4 文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文 SOP 文文文

Do not hit stencils while handling to prevent damaging of stencils Take the method according

to SOP

6.5.2 文WTQ 文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文

文For WTQ文Stencils which will not be used in the future or of products that have been

discontinued shall be placed in the stencil scrap area These stencils shall be paste the scrap label as below

6.5.5 文文文文文文文文文文文文文文文文文文文文

Scrapped stencils shall not be disposed of without prior permission and shall be by the

management unit deal with it

After cleaning stencils with the cleaning solvent, put stencils in the cleaning machine to wash for at least 5 minutes Remove residue with compressed air Rub stencils around with paper (NQJ &NQX rub stencils around with dusty-free cloth)

6.6.3 文文文文文文 Notes for Cleaning

Store the solder paste residue on the stencil with seal pot and clean the stencils according

to the above method when line shut down over 30 minutes

6.7 文文文文/文文文文 Stencil New Build/ Modify Inform

6.8 文文文文文文 Stencil Tension Measurement

6.8.1 文文文文文 Requirement of Stencil Tension

6.8.1.1 文NQJ/NQX 文文文文文文文文≧25N/cm文文文文<25N/cm 文文 NG文

文Only for NQJ/ NQX文The tension should ≧25N/cm; Unqualified with tension of anyone point<25N/cm;

After resetting tension meter (0 N/cm) with a tester (sheet glass), put the tension meter on the back of stencil (PCB contact surface) and a 9-grid frame on top (Arrange the order like the 6.6.3) Measure tension from every grid, a total of 9 points Reset meter after measuring 3 points.

6.9 文文文文文文文 Stencil and Squeegee Management

Tension of stencils shall be measured every time before and after use Results of measurement shall be recorded in the Stencil Cleaning Record Checklist.

6.9.2.2 文文文文文文文文文文文文文文文文文文文文文文文文 SMT 文文文文文文文文文文文文文文文文文文文文文

Applications for replacement or re-stretching of unqualified stencils shall be made SMT engineers shall attach the Scrap label to stencils to be scrapped for central management.6.9.3 文文文文 Squeegee Clean

文文文 After Resetting

6.10.3 文文文文文文文文文文文文文(PCB 文文文)文文文文文文文文文文文文文文文文文文文文文文文文文文文文(文文文文文文文文文文文)文文文

文文文文文文文文文文文文文文文文文

Put the tension meter on the back of stencil (PCB contact surface) and a 9-grid frame on top Measure tension from every grid, a total of 9 points as shown below (Arrange the order: The following figure shows) Please cleanse the 9-grid frame before you use it

文文文文文6.10.6 文文文文文文文文文文文文文 SFCS 文文文文

Complete the results of measurement input to SFCS

6.11文文文文文文 Stencil Appearance Inspection

6.11.1 文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文

Scratches may occur due to friction between the steel squeegee and stencil, and solder paste thickness will be uneven as a result In this case, the yield rate will be affected Therefore, workers shall notify the engineer immediately if they discover abnormal scratches on stencils

6.11.2 文文文文文文文文文文 BGA 文 QFN 文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文

文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文

For tiny and high-precision BGA and QFN components, pits will occur on component openings

as printing frequency and friction increases, affecting the dispensing of solder and so the yield rate and quality of products Therefore, workers shall notify the engineer immediately if they discover pits on component openings

Workers shall check with visual inspection if stencils are clean( check by over 10 times

magnifier for under 0.5mm pitch parts BAA QFP… ), worn out, damaged with pits on surface

or on sides of stencil before going on line Notify the engineer immediately if they discover any defect

NG NG NG

NG NG6.12文文文文文文 Stencil Inspection Items

not complete), to reserve internal transfer form to sign and execute procurement exercise time than the bargaining.

Buyer is responsible for consultation and order

6.13.1.3 文文&文文 Acceptance & Apply for Funds

SMT文文文文文文文文文文文

SMT engineering responsible for the inspection and apply for funds

6.13.2 文文(文文)文文 Scrap Recycling Operation

6.13.2.1 文文文文(文文→文文)

 文WTQ文SMT 文文文文文文 BU 文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文

文For WTQ文Recovery operation (proposed → handle): SMT engineering to be no need to confirm with the BU end,after the proposed retirement application must be scrapped until the cumulative number, notify the purchasing unit of processing by the procurement unit tocontact companies, three the number of required on-site inventory of steel recycling and confirm the price of gold recovered

 文NQJ & NQX文SMT 文文文文文文 BU 文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文文

文For NQJ & NQX文SMT engineering to be no need to confirm with the BU end,after the proposed retirement application must be scrapped until the cumulative number, then the

文901-N14-07 文文文文文文文 Stencil Recycling Form文文文文文文文文(文文文文文文文文文文文文文文)文文文文文文文文文文文文文文文文文文文文文文文文文文文文.

“901-N14-07 文文文文文文文 Stencil Recycling Form” A single new steel recycling, the need for the unit (including the applicant, the procurement unit and vendor) confirmed the signing, and countersigned by the financial unit has been confirmed by the application in accordance with the provisions of filling orders and payment

8.1 901-N14-05文 文文文文文文 WNC Stencil Inspection Report

8.2 901-N14-07 文文文文文文文文 Stencil Recycling Form

8.3 901-N14-08 文文文文文/文文文文文 (WTQ) Stencil Make/ Modify Inform

8.4 901-N14-09 文NQJ & NQX 文文文文/文文文文文 NQJ & NQX Stencil Production/ Modification notice8.5 901-N14-11 文NQJ/NQX 文文文文文文 SOP (NQJ/NQX&V1 Stencil transport process)

8.6 901-N14-12 文WTQ 文文文文文文 SOP (WTQ Stencil Transport process)