Knowledge Base

Yes. For most inquiries, a drawing, sample photo, material requirement, or basic project description is enough for Sanjin to start a review.

Useful details include drawing or sample photos, material or plating requirements, expected quantity, critical dimensions, application conditions, and the problem you are trying to solve.

No. A finished drawing is helpful, but an unfinished package idea, sample part, or rough requirement can also start the discussion.

Project questions are routed to the right commercial or technical contact, depending on whether the request involves pricing, tooling, materials, inspection, or package structure.

For standard products, Sanjin can usually provide free samples. The customer normally covers freight or courier cost.

Yes. Custom parts can start with a small batch when the tooling or NRE requirement is clear and accepted.

Tooling or NRE is usually required when the part needs a custom shape, forming route, fixture, mold, cavity, lead structure, or other dedicated production setup.

Sanjin will match the tooling route to the project stage. For early-stage or lower-volume work, the route may be kept lighter to help control cost before demand is confirmed.

Sanjin supports metal lids, frames, shims, interposers, lead-frame structures, Kovar rings, bonding pads, hermetic structures, ceramic-related packages, and selected custom package components.

No. Standard products provide a starting point, but Sanjin also supports build-to-print and custom manufacturing when geometry, material, surface, or package requirements are different.

Yes. Sanjin reviews the requirement and helps define a practical route for tooling, material behavior, process control, inspection, and release.

Yes. Sanjin has experience with glass-to-metal sealing, metallized ceramic structures, conductive paths, and package interfaces where materials and process windows must work together.

MOQ depends on the part, drawing, material, tooling route, inspection requirement, and production stage. Sanjin reviews this case by case.

Lead time depends on whether the part is standard, modified, or fully custom. Drawings and project details are reviewed before a realistic schedule is confirmed.

Sanjin can usually start a preliminary review, but final pricing and lead time require enough information to confirm material, process route, inspection needs, and delivery format.

Drawings and specifications are used for project review only and are routed internally to the relevant commercial, engineering, or quality contact.

Yes. When required, Sanjin can provide inspection records connected to drawing number, material, lot number, inspection basis, and release review.

Yes. Sanjin can provide RoHS documentation for component materials when required by the customer or project.

Yes. Production and inspection records are managed by lot, drawing, material, quantity, and release basis where required.

Yes. Sanjin can sign confidentiality agreements. Customer drawings, technical information, and commercial documents are protected through legal and internal confidentiality controls.

Sanjin operates under certified systems including IATF 16949, ISO 9001, and ISO 14001.