Grand Pond Limited

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Smart Card Production Process

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Wafer Cutting

Chips are made from a piece of silicon called wafer. Wafers are six, eight, or twelve inches in diameter and contain many chips. A typical manufacturer using an eight-inch wafer can reap approximately 18,000 chips after cutting and grinding. Depending on the process and the complexity of the chip, some wafers may yield as low as 6,000 chips. Generally, if 95% of the chips are acceptable, we can harvest about 17,100 good chips per wafer for eight-inch wafer.

Bonding and Encapsulating

Die bonder and Wire bonder are well intelligentized, with stable performance and highest throughput among their similar. The process precision of the wire bonder is of micrometer and it can be use to bond CPU chips for PCs, thanks to the newly installed alignment know-how which involves sophisticated optic and electronic principles. In one word, the wire bonder is the total embodiment of the advanced technology. The molding machine is also an automatically controlled and highly intelligent machine with excellent performance. The encapsulation machine, has characteristics, among others such as easy to operate and high safety levels. The tester, which is elite even at this moment, can carry out a series of electrical tests on the finished micro modules to check their performance. If any is found faulty, it can make a mark on the wrong one. Of course, all is done in pursuit of internationally accepted standards.

Wafer Bonding & Encapsulating Flowchart

Chip Embedding

The chip embedding is done in two steps:

First the milling process where cavities for IC modules are milled into the card bodies. The cavities are dimensioned according to module size to be implanted.

Then the implanting process where the IC modules are punched from the tape and are placed and fixed in the cavity of the card. Our system support "hot" implanting process which is regarded as the most reliable process.

Contact card Process

Contactless card Process

Card Printing

In order to protect our personal information, security printing is necessary. There are several type of security printing: Guilloche Graphics, Micro-border, UV Printing, Hologram, Anti-copy Feature, Optical Variable Inks (OVI)

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Finished Card

PVC card

PVC cards are the most common type of card in existence. VISA and ATM cards are both made from 100% PVC material, and most access control and smartcards use a PVC or PVC/Poly card for their users. It is the card of choice for photo ID printers and is ideally suited to a wide range of applications.
There are many different colours available on PVC and PVC/Poly cards. Because some printing processes, such as spot colour (screen) printing can not print colour over a whole card, edge-to-edge, it might be a good idea to start with a card blank that already has the desired background colour. The most popular colours are white, gold, platinum and bronze.

PET card

Traditionally there are three types of card stock used and available on the market: PVC, Paper, and Laminates. PET (Polyethylene terephthalate) is a new material that exhibits many if not all of the desirable benefits without many of the side effects associated with the original three. PET is a non-toxic and biodegradable substance. Unlike PVC cards, those like your credit cards, PET does not crack or break.

PET Card Features: