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16 Placement Hea ds TwinHead for H igh-Precision IC Placement Technical Data for the TwinHead *) If standard no zzles are used Please note that the component range that c an be placed is also affected by the pad geometry…

Placement Heads

TwinHead for High-Precision IC Placement

Description

This sophisticated placement

head consists of two place-

ment heads of the same type

coupled together (twin

head). Both heads work

using the Pick&Place princi-

ple. The TwinHead is suitable

for processing particularly

difficult or large compo-

nents. Two components are

picked up by the placement

head, optically centered on

the way to the placement

position and rotated into the

necessary placement angle.

The components are then

placed gently and accurately

on the board.

The placement head can also

use the nozzles for the Pick &

Place head (used on the F5

HM) in addition to the noz-

zles recently developed for

the TwinHead. Collect &

Place head nozzles can also

be used.

Checking and self-learning

functions

The TwinHead's reliability

can be further increased with

various checking and self-

learning functions.

• For example, vacuum

checks at the nozzles indi-

cate whether the compo-

nent was picked up or set

down correctly.

• High-resolution, digital

component vision camer-

as such as the Fine-pitch

and Flip-chip vision camer-

as (optional) identify the

smallest deviations in the

component position. The

digital vision system cor-

rects such deviations, thus

guaranteeing a correct

placement position. The

digital component camer-

as are permanently fixed

to the machine frame.

• The component package

form is also checked, and

the component is not

placed if the geometric

data thus determined dif-

fers from the programmed

data.

• A force sensor measures

and monitors the specified

component placement

forces.

Z axis

DP axis

How the TwinHead works

Placement Heads

TwinHead for High-Precision IC Placement

Technical Data for the TwinHead

*) If standard nozzles are used

Please note that the component range that can be placed is also affected by the pad geometry and

customer-specific standards.

Optical centering with

digital

Fine-Pitch Camera Flip-Chip Camera (Option)

Component range 0603 to SO, PLCC, QFP, BGA, spe-

cial components, bare dies, flip-

chips

0201 to SO, PLCC, QFP, sockets,

plugs, BGA, special components,

bare dies, flip-chips, shields

Component specifica-

tions

max. height

min. lead pitch

min. ball pitch

min. ball diameter

min. dimensions

max. dimensions

max. weight

25 mm (larger heights on request)

0.3 mm

0.45 mm

0.25 mm

0.5 x 0.5 mm²

55 x 45 mm²

(single measurement)

For use with two nozzles

50 x 50 mm² or

69 x 10 mm²

For use with one nozzle:

85 x 85 mm² or

125 x 10 mm²

max. 200 x 125 mm² (with restric-

tions)

100 g

25 mm (larger heights on request)

0.25 mm

0.14 mm

0.08 mm

0.2 x 0.2 mm²

16 x 16 mm²

(single measurement)

100 g

Programmable

placement force

1.0 N - 15 N 1.0 N - 15 N

Nozzle types 5 xx (standard)

4 xx + adapter

8 xx + adapter

9 xx + adapter

5 xx (standard)

4 xx + adapter

8 xx + adapter

9 xx + adapter

Nozzle spacing on the

two Pick&Place heads

70.8 mm 70.8 mm

X/Y accuracy ± 26 µm/3 σ

± 35 µm/4 σ

± 22 µm/3 σ

± 30 µm/4 σ

Angular accuracy ± 0.05°/3 σ

± 0.07°/4 σ

± 0.05°/3 σ

± 0.07°/4 σ

Placement Heads

Nozzle Changers (Collect & Place Heads)

Description

Nozzle changers increase

the flexibility of placement

heads when processing dif-

ferent components. The

nozzle configuration can be

quickly modified for new

placement jobs. Exactly

defined positions and the

perfect seating of the nozzle

in the garage guarantee

minimal radial eccentricity

at the placement head.

The nozzle changer for the

20-nozzle Collect & Place

head is equipped with a

monitoring circuit which

checks whether the nozzle

magazine is seated correctly

on the mount.

Magazine for 12

type 9xx nozzles

Magazine for 6

type 9xx nozzles

Magazine for 6

type 8xx nozzles

Nozzle changer for the

12-nozzle Collect & Place head (NC12)

(5 magazines in total

→ 60 nozzle holders)

Nozzle changer for the

6-nozzle Collect & Place head (NC6)

(6 magazines in total → 36 nozzle holders)

Nozzle changer for the

20-nozzle Collect & Place head (NC20)

(6 magazines in total

→ 72 nozzle holders)

Magazine for 12

type 10xx, 11xx or 12xx nozzles