John,

 

Can you send picture to us; maybe our team will find some improve actions,

 

Haley

 


From: John Ling (Jiazhao Ling) [mailto:[log in to unmask]]
Sent: Tuesday, September 18, 2007 12:08 PM
To: Asia Committe Task Group Forum; Haley Deng
Subject: [TGA] Chip LED Reflow condition

 

Hello, Haley:

    The bonding wire broken near bonding point. Befroe introducing RoHS, we don't have problemon chip LED reflow. TRhe failed LED can light, when mnual solder it agian. We still have PTH LED with 2% reject rate on wave sodlering which we don't have this problem before.

    Our supplier have no idea to improve it?

    Thanks!
    John Ling
    Loud China
  

----- Original Message -----

From: [log in to unmask]">Haley Deng

To: [log in to unmask]">[log in to unmask]

Sent: Tuesday, September 18, 2007 11:29 AM

Subject: Re: [TGA] Chip LED Reflow condition

 

Dear John,

 

What about failure model, ATE test or crack?

 

Haley

 


From: John Ling (Jiazhao Ling) [mailto:[log in to unmask]]
Sent: Tuesday, September 18, 2007 11:19 AM
To: Asia Committe Task Group Forum; Haley Deng
Subject: Chip LED Reflow condition

 

Hello, Haley:

   Our Chip LED has 10% failure after RoHS reflow. DO you Have any idea to control it?

  

    Thanks!
    John Ling
    Loud China 
  


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