SIPLACE Vision Customer_en.pdf - 第124页

Component Shapes Coplanarity Measurement for Gullwing and Ball Leads Coplan arity Measurement for IVP 3D Coplan S tudent Guide SIPLACE V ision (Customer) Component Shapes Edition 12/2008 EN 124 Measurement Basics for Gul…

Component Shapes

Coplanarity Measurement for IVP 3D Coplan Coplanarity Measurement for Gullwing and Ball Leads

Student Guide SIPLACE Vision (Customer)

Edition 12/2008 EN Component Shapes

123

Station SW User Interface for Coplanarity Measurement

5.6.2 Coplanarity Measurement for IVP 3D Coplan

During CS testing, the component camera image

can display all relevant coplanarity measurement

data and the scanning paths used by the operator

during measurement.

5-24: IVP 3D coplan sensor (laser class 2 in machine) for gullwings and ball

leads

In contrast to the coplanarity measurement with

ILD 2200, the measurement with the IVP 3-

D(imensional) coplan sensor uses a line laser. The

sensor needs its own computer. An X2 or X3

machine is therefore equipped with a TwinHead i

the second processing area and has a Vision

computer in addition to the station computer. This

sensor also supports coplanarity measurement on

BGA structures.

Component Shapes

Coplanarity Measurement for Gullwing and Ball Leads Coplanarity Measurement for IVP 3D Coplan

Student Guide SIPLACE Vision (Customer)

Component Shapes Edition 12/2008 EN

124

Measurement Basics for Gullwings

5-25: Triangulation of the line laser for determining the gullwing lead height

deviation

A line laser beam is used to measure the contact

surfaces of the gullwing leads, with the

triangulation principle. The Z axis control function

for the TwinHead ensures stabile and highly

precise component height positioning during Y

axis movement in the measurement process.

5-26: Measurement value for a QFP 80

The measured side deviation for diffuse reflections

on the leads is converted into the height deviation

of the lead.

Component Shapes

Coplanarity Measurement for IVP 3D Coplan Coplanarity Measurement for Gullwing and Ball Leads

Student Guide SIPLACE Vision (Customer)

Edition 12/2008 EN Component Shapes

125

Measurement Basics for BGA Leads

The lowest leads determined during scanning

(height 0) are set as the coplanarity level. The

component center must be inside this area (as

also for ILD2200). The deviation of other leads to

this is shown as a figure on the contact level of

each lead.

A line laser beam is used to measure the

hemispherical surfaces of the BGA leads, with the

triangulation principle (light breaking method).

This measures the ball arrangement as if in a

cross section diagram.