焊线及焊线工艺介绍

Solder Ball Placement
Dejunk TRIM Solder Plating
Singulation
Solder Plating TRIM/ FORMING
Dejunk TRIM
Packing
Wire Bond 原理
Ball Bond ( 1st Bond )
Wedge Bond ( 2nd Bond )
WIRE BOND PROCESS INTRODUCTION
CONTENTS
ASSEMBLY FLOW OF PLASTIC IC Wire Bond 原理 M/C Introduction Wire Bond Process Material SPEC Calculator DEFECT
W/H ASSY
• changeover
•·Fully programmable indexer & tracks
•·Motorized window clamp with soft close feature
•·Output indexer with leadframe jam protection feature
Programmable profile, control and vibration modes
Eagle
MACHINE SPECIFICATIONS (II)
•Vision System •Pattern Recognition Time 70 ms / point •Pattern Recognition Accuracy + 0.37 um •Lead Locator Detection 12 ms / lead
封裝簡介
晶片Die
金線 Gold Wire 導線架
Lead fram
Wafer Grinding
Baidu Nhomakorabea封裝流程
Wafer Saw
Die Bonding
toaster
Wire Bonding
Die Surface Coating
Molding
Laser Mark
BGA
SURFACE MOUNTPKG THROUGH HOLE PKG
(Programmable) •Loop Type Normal, Low, Square & J •XY Resolution 0.2 um •Z Resolution (capillary travelling motion)2.5 um •Fine Pitch Capability 35 mm pitch @ 0.6 mil wire •No. of Bonding Wires up to 1000 •Program Storage 1000 programs on Hard Disk •Multimode Transducer System
• Tool less conversion window clamps and top plate enables fast device
Eagle
MACHINE SPECIFICATIONS (I) •Bonding System •Bonding Method Thermosonic (TS) •BQM Mode Constant Current, Voltage, Power and Normal
X Y Table
•Linear 3 phase AC Servo motor •High power AC Current Amplifier •DSP based control platform •High X-Y positioning accuracy of +/- 1 mm •Resolution of 0.2 mm
Bond Head ASSY
• Low impact force •Real time Bonding Force monitoring • High resolution z-axis position with 2.5 micron per step resolution • Fast contact detection • Suppressed Force vibration • Fast Force response • Fast response voice coil wire clamp
Gold wire
pad lead
B.PRINCIPLE
PRESSURE VIBRATION
AL2O3
CONTAMINATION GLASS
GOLD BALL
Al SiO2
Si
MOISTURE
銲接條件
HARD WELDING Pressure (Force) Amplify & Frequecy Welding Time (Bond Time) Welding Tempature (Heater) THERMAL BONING Thermal Compressure Ultrasonic Energy (Power)
(3 leads/frame) •Lead Locator Accuracy + 2.4 um •Post Bond Inspection First Bond, Second Bond
Wire Tracing •Max. Die Level Different 400 – 500 um
•Facilities •Voltage 110 VAC (optional 100/120/200/210/ •220/230/240 VAC
Eagle
MACHINE SPECIFICATIONS (III)
•Material Handling System •Indexing Speed 200 – 250 ms @ 0.5 “ pitch •Indexer Resolution 1um •Leadframe Position Accuracy + 2 mil •Applicable Leadframe W = 17 – 75 mm @ bonding area in Y = 65mm
= 17 – 90 mm @ bonding area in Y = 54mm L = 280 mm [Maximum] T = 0.075 – 0.8 mm