Uncover principles&applications

Published on：2019-02-27 Author：ceshi

Principle and Application of Decap Opening Cap Type
Reproduction of instrument quasi-AA probe station, please specify the source
Decap is open, also known as open cap, open cap, refers to the complete package of IC to do * local corrosion, so that IC can be exposed, while maintaining the integrity of the chip function, die, bond pads, bond wires and even lead-frame are not damaged, for the next chip failure analysis experiment preparation, convenient observation or other tests (such as FIB, EMMI), after Decap function is normal.
To the letter: General COB, BGA, QFP package, QFN, SOT, TO, DIP, BGA, COB ceramics, metal and other special packaging.
Generally there are chemical, mechanical, Laser and plasma Decap.
Decap Lab can handle almost all IC packaging forms (COB. QFP. DIP SOT, etc.), wire type (Au Cu Ag), no reservation, etc., which can be completed and sent on the same day.

There are mainly two kinds of chip opener: chemical etching and laser opener. The difference is that laser opener is relatively simple, and the IC of copper wire bonding is relatively easy.
DECAP SESAME 707/777Cu Mixed Acid Opening System
Key Applications: Fast IC etching time, even for the most vulnerable devices, can easily be unpacked with compact design and small area dedicated to copper wire device unpacking design (SESAME 777Cu)
Product Features: Active Pressure Monitoring System (ASM) is a very fast heating time liquid sensor warning operators of acid leak pump warranty for 6 years, etching head lifetime warranty SESAME 707/777Cu is an automatic mixed acid opening system, which integrates advanced features to improve production efficiency.
Opener can quickly and easily open any device, even the most vulnerable device. By accurately controlling the mixture of nitric acid and sulfuric acid, the device will not be damaged. A unique acid supplying function can be selected, which can provide Zui high pulse rate at less than the maximum acid consumption. SESAME 707/777Cu can be heated to 250 degrees Celsius, providing any kind of acid ratio, making the operation more diversified. The whole etching head is made of high-grade silicon carbide and has super acid resistance. The sample fixing device is activated by pneumatic device, and the capability of infinite reciprocating motion is designed. SESAME 707/777Cu is a true double-control uncoiler that only Yi contains between the acid bottle and the uncoiler for all liquid coupling. There are flow sensors on the acid bottle container system and etching unit to warn the operator of any acid accidental leakage inside the machine or in the acid bottle system.

Laser Decap
Common brand ADVANCED PST-2000 product characteristics:
1. It has a good opening effect for copper process devices, and the yield is higher than 90%.
2. It does little harm to the environment and human body and conforms to the concept of environmental protection.
3. Opening efficiency is 3-5 times higher than that of ordinary acid opening machine.
4. The computer controls the shape, position, size and time of the opening, which is convenient to operate.
5. The equipment is stable and the failure rate is much lower than that of the acid sealing machine.
6. There are almost no consumables and running cost is very low.
7. Small size, easy to place.
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